CN115183636A - Design method of uniform-loading bracket for transportation of cylindrical solid fuel storage container - Google Patents
Design method of uniform-loading bracket for transportation of cylindrical solid fuel storage container Download PDFInfo
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- CN115183636A CN115183636A CN202211107012.5A CN202211107012A CN115183636A CN 115183636 A CN115183636 A CN 115183636A CN 202211107012 A CN202211107012 A CN 202211107012A CN 115183636 A CN115183636 A CN 115183636A
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- 239000004449 solid propellant Substances 0.000 title claims abstract description 96
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000000926 separation method Methods 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 description 6
- 239000000446 fuel Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B39/00—Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
- F42B39/28—Ammunition racks, e.g. in vehicles
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Abstract
The invention discloses a design method of a load balancing bracket for transportation of a cylindrical solid fuel storage container, belonging to the technical field of solid fuel container transportation, which comprises the following steps of determining a task load, determining the design load of the load balancing bracket according to the task load: dividing a plurality of bracket bodies into an A bracket group and a B bracket group by taking the mass center of the cylindrical solid fuel storage container as a separation boundary, and respectively calculating the total design supporting load of the A bracket group and the total design supporting load of the B bracket group; and respectively calculating the number of hooping rings, the number of layers of the supporting pieces, the position of each supporting rod and the position of each hooping ring in the A bracket group and the B bracket group according to the design supporting load of a single hooping ring. The uniform loading bracket designed by the method can ensure that the stress of the contact part of the transported cylindrical solid fuel storage container and all the embracing rings is uniform when the transportation vehicle is used for carrying out long-distance horizontal transportation, and avoids the condition that the container structure is damaged due to stress concentration.
Description
Technical Field
The invention relates to the technical field of solid fuel container transportation, in particular to a design method of a uniform loading bracket for transportation of a cylindrical solid fuel storage container.
Background
The cylindrical solid fuel storage container is generally horizontally constructed and horizontally transported to a destination using a transport vehicle. As the cylindrical solid fuel container is becoming larger, the requirements of related transportation accessories are becoming higher and higher during the horizontal transportation process by using transportation vehicles.
In daily practice, the inventors found that the prior art solutions have the following problems:
because the cylindrical solid fuel container is long in length, in the process of horizontal transportation by using a transportation vehicle, different forces and accelerations are applied to different bearing positions of the transportation vehicle along with factors such as the jolt of a road surface and the change of the running speed of the vehicle. The existing pure mechanical structure adopting a plurality of independent single-point supporting modes can bear the weight of the cylindrical solid fuel storage container, but as the cylindrical solid fuel storage container bears more solid fuel and has larger weight, the shell of the cylindrical solid fuel storage container is relatively thin, and particularly has weaker radial bearing capacity, the supporting force of each supporting point is not balanced in the horizontal transferring process by utilizing a transport vehicle, and the cylindrical solid fuel storage container is easily damaged due to stress concentration of one or a plurality of supporting points in the final assembly and transportation process. The existing multi-point supporting electronic sensing system or multi-point hydraulic control system is used for carrying out balance control on the load, but the scheme has the disadvantages of complicated related equipment, greatly increased cost, complicated operation in the load adjusting process, obvious hysteresis, low efficiency and high failure rate. The Chinese patent with the application number of 201910959955.2 discloses a rocket transfer supporting device and a rocket transfer trolley, which can solve the problem that the local surface pressure of the rocket in the transportation is too large in the traditional mode caused by the fact that the mass of the rocket is too large by using a hydraulic system, but the rocket transfer supporting device is complex in structure and difficult to control, and cannot meet the requirements.
In view of the above, it is necessary to provide a new technical solution to solve the above problems.
Disclosure of Invention
In order to solve the technical problem, the application provides a design method of a uniform loading bracket for transportation of a cylindrical solid fuel storage container, and the uniform loading bracket designed by the method can ensure that the stress of the cylindrical solid fuel storage container in transportation is uniform at the contact position with all embracing rings when a transfer vehicle is used for carrying out long-distance horizontal transportation, so that the condition that the structure of the container is damaged due to stress concentration is avoided.
A method of designing a load-sharing tray for transportation of a cylindrical solid fuel storage vessel, comprising:
determining the task load, determining the design load of the uniform loading bracket according to the task load:
dividing a plurality of bracket bodies into an A bracket group and a B bracket group by taking the mass center of the cylindrical solid fuel storage container as a separation boundary, and respectively calculating the total design supporting load of the A bracket group and the total design supporting load of the B bracket group;
respectively calculating the number of hooping in the A support seat group and the B support seat group, the number of layers of the supporting pieces, the position of each supporting rod and the position of each hooping according to the design supporting load of a single hooping;
the sum of the design supporting load of all the hoops in the bracket group A and the design supporting load of all the hoops in the bracket group B is not less than the design load of the load balancing bracket; the number of hooping is an exponential function of 2 taking the number of the supporting part layers as an independent variable.
Preferably, the design load of the uniform loading bracket determined according to the task load is as follows:
wherein G is the design load of the cylindrical solid fuel storage vessel, G 0 And omega is a safety factor of the task load of the cylindrical solid fuel container.
Preferably, in the step of calculating the total design supporting load of the A bracket group and the total design supporting load of the B bracket group respectively:
the total design support load of the A bracket group is as follows:
the total design supporting load of the B bracket group is as follows:
wherein Fa is the total design support load of the A tray set, fb is the total design support load of the B tray set, G is the design load of the cylindrical solid fuel storage container,
the distance between the support rod at the bottommost layer of the A bracket group and the mass center of the cylindrical solid fuel storage container,
the distance between the support rod at the bottommost layer of the B bracket group and the mass center of the cylindrical solid fuel storage container.
Preferably, the step of calculating the number of hooping rings in the seat group a and the seat group B, the number of layers of the supporting members, the position of each supporting rod, and the position of each hooping ring respectively according to the designed supporting load of a single hooping ring comprises:
calculating the hoop loads in the A bracket group and the B bracket group;
compare each embracing in A support group and the B support group and the design support load of singly embracing the ring, judge whether the position of embracing the position of the ring and every position of embracing of the ring quantity, support piece in A support group and the B support group satisfies the design demand:
if the single embracing ring loads in the A bracket group and the B bracket group are smaller than the numerical value of the design supporting load of the single embracing ring, the number of the embracing rings, the number of layers of the supporting piece, the position of each supporting rod and the position of each embracing ring in the A bracket group and the B bracket group can meet the design requirement;
if the number of the embracing ring loads in the A bracket group and the B bracket group is larger than the number of the designed support load of a single embracing ring, the number of layers of the support piece in the A bracket group and/or the B bracket group is increased until the number of the single embracing ring loads in the A bracket group and the B bracket group are smaller than the number of the designed support load of the single embracing ring.
Preferably, before the step of calculating the number of embracing rings, the number of layers of the supporting members, the positions of the supporting rods, and the position of each embracing ring in the group a and the group B respectively according to the designed supporting load of a single embracing ring, the method further comprises:
defining the label of each embracing ring;
defining the distance from each embracing ring to the fulcrum of the lever structure where the embracing ring is located;
defining the load born by each embracing ring;
the total load of the supports in the same layer in the group a and the group B is defined separately.
Preferably, the defining of the number of each hoop includes defining the number of hooping in the A bracket group and the B bracket group respectively;
the number of each embracing ring in the A bracket group is as follows:
；
the number of each embracing ring in the B bracket group is as follows:
；
wherein m is the number of layers of the supporting pieces in the A bracket group, and m is a natural number not less than 1;
,
is a natural number; n is the number of layers of the supporting pieces in the B bracket group, and n is a natural number not less than 1;
,
is a natural number.
Preferably, the defining the distance between the hoop and the pivot thereof includes: respectively defining the distance from each embracing ring in the A bracket group and the B bracket group to the fulcrum of the lever structure where the embracing ring is located; wherein,
the distance from each embracing ring to the fulcrum of the lever structure where the embracing ring is located in the A bracket group is as follows:
；
the distance from each embracing ring to the fulcrum of the lever structure where the embracing ring is located in the B bracket group is as follows:
。
preferably, the defining the load borne by each hoop includes: respectively defining the load borne by each embracing ring in the A bracket group and the B bracket group; wherein,
the load that each armful of ring bore in the A support group is:
；
the load born by each embracing ring in the B bracket group is as follows:
。
preferably, the defining the total load of the supporting members in the same layer in the a-tray group and the B-tray group respectively comprises:
the total load of the supporting members in the same layer in the A bracket group is as follows:
the total load of the supporting members in the same layer in the B bracket group is as follows:
wherein,
the total load of the supporting members in the same layer in the A bracket group;
the total load of the strut members in the same layer in the B-saddle set.
Preferably, the calculating the hoop loads in the mount group a and the mount group B includes:
the load of each embracing ring in the A bracket group is as follows:
the ring holding load in the B bracket group is as follows:
wherein,
the first embracing ring load in the same embracing ring group with m layers of supporting pieces in the A bracket group is adopted;
a second embracing load in the same embracing group with m layers of supporting pieces in the bracket group A is adopted;
a first hoop load in the same hoop group with n layers of supporting pieces in the B supporting seat group;
a second hoop load in the same hoop group with n layers of supporting pieces in the B supporting seat group;
m is the number of layers of the supporting pieces in the A bracket group, and m is a natural number not less than 1; n is the number of layers of the supporting pieces in the B bracket group, and n is a natural number not less than 1.
Compared with the prior art, the application has at least the following beneficial effects:
1. the number of layers of the supporting pieces and the number of the hoops in the uniform loading bracket for transporting the cylindrical solid fuel storage container can be determined, the bearing points of the cylindrical solid fuel storage container are accurately designed, and uniform loading bearing of the cylindrical solid fuel storage container in the horizontal transportation process by using a vehicle is effectively realized;
2. the invention can determine the positions of the bearing centers of the A tray group and the B tray group in the uniform bearing bracket for transporting the cylindrical solid fuel storage container, realize the effective arrangement of the weight of the cylindrical solid fuel storage container, and can carry out the effective arrangement of the bearing distance on the cylindrical solid fuel storage container with uneven density and volume shape, thereby realizing uniform bearing.
3. The distance from each hoop to the fulcrum of the lever structure of the uniform-loading bracket for transporting the cylindrical solid fuel storage container and the distance from each support rod to the fulcrum of the lever structure of the uniform-loading bracket can be determined, so that the accurate and controllable position of the supporting fulcrum is realized, and uniform-loading supporting is further realized;
4. the uniform loading bracket for the transportation of the cylindrical solid fuel storage container, which is designed by the invention, can ensure that the stress of the transported cylindrical solid fuel storage container is uniform at the contact part of the cylindrical solid fuel storage container and all the embracing rings when the cylindrical solid fuel storage container is transported horizontally for a long distance, and avoids the condition that the structure of the transported cylindrical solid fuel storage container is damaged due to stress concentration.
5. The load balancing bracket for the transportation of the cylindrical solid fuel storage container designed by the invention realizes the load balancing of the bracket by adopting a pure mechanical structure mode, can realize self balance by depending on the self weight of the cylindrical solid fuel storage container, does not need a complex control system, and has good load balancing effect and low production cost.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic view of the loading bracket of the present invention;
FIG. 2 is a flow chart of the method for designing the load leveling bracket according to the present invention;
FIG. 3 is a schematic view showing the stress and force arm conditions of the support member and the hoop of the uniform loading bracket when the support member has 1 layer;
FIG. 4 is a schematic view showing the stress and force arm conditions of the embracing ring and the supporting member of the uniform loading bracket when the supporting member has 2 layers.
Wherein the figures include the following reference numerals:
1. a bracket group, 2, B bracket group, G 0 A center of mass of the cylindrical solid fuel storage container;
10. a cylindrical solid fuel storage container 20, a pedestal body;
210. a hoop 220, a supporting piece 221, a swing arm 222 and a supporting rod.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In order to avoid damage to the fuel inside the cylindrical solid fuel storage container and the surface thereof, the outer shell of the cylindrical solid fuel storage container is generally made thicker to increase the strength of the outer shell, but the overall weight is inevitably increased by increasing the thickness of the outer shell of the cylindrical solid fuel storage container to increase the strength of the outer shell.
In addition, in the case where two holders are used to support the cylindrical solid fuel storage container, and two holders support the cylindrical solid fuel storage container, each of the support points may bear a large load, in order to avoid damage to the outer shell of the cylindrical solid fuel storage container by the large load, it is necessary to further increase the thickness of the outer shell, particularly the thickness of the outer shell in the vicinity of the support points, to increase the strength of the outer shell of the cylindrical solid fuel storage container. The cylindrical solid fuel storage container is supported by a plurality of brackets, for example, three brackets are used for supporting the cylindrical solid fuel storage container, when the cylindrical solid fuel storage container passes through a bumpy road surface, the three brackets support the cylindrical solid fuel storage container to form over-constraint, so that one bracket does not actually bear load, and the other two brackets bear load exceeding the preset design, and in order to overcome the damage caused by the over-constraint, the thickness of the shell, particularly the thickness of the shell near a supporting point, is increased, so that the strength of the shell of the cylindrical solid fuel storage container is increased.
Further, since not only the outer shell of the cylindrical solid fuel storage container but also the fuel in the cylindrical solid fuel storage container must be protected, the outer shell of the cylindrical solid fuel storage container at the location of the device to be protected is made thick, so that the device is protected by increasing the strength of the outer shell of the cylindrical solid fuel storage container at the location of the device, and when the cylindrical solid fuel storage container is placed on the holder, since the holder applies a large load to the cylindrical solid fuel storage container, the holder must be moved away from the location of the device, so that the device is prevented from receiving a large load from the holder, thereby protecting the device.
Obviously, when the cylindrical solid fuel storage container is operated by using the carrying method, in the case of avoiding the cylindrical solid fuel storage container from being damaged due to the pressure and bending moment which the cylindrical solid fuel storage container is subjected to, it is difficult to reduce the weight of the cylindrical solid fuel storage container, and also difficult to reduce the surface pressure of the supporting position, so that the conventional transferring method of the cylindrical solid fuel storage container is difficult to overcome the risk of damage to the cylindrical solid fuel storage container due to transfer caused by the increase of the weight. In addition, it is more impossible to both secure the strength of the cylindrical solid fuel storage container and reduce the weight of the cylindrical solid fuel storage container under the full load of the solid fuel.
As shown in FIG. 1, a uniform loading pallet for transporting a cylindrical solid fuel storage container comprises a plurality of pallet bodies 20, wherein the pallet bodies 20 have a mass center G of the cylindrical solid fuel storage container 0 Is divided into an A bracket group 1 and a B bracket group 2 which are independent from each other for the boundary, wherein the A bracket group 1 is positioned at the mass center G of the cylindrical solid fuel storage container 0 The front B bracket group 2 is positioned at the mass center G of the cylindrical solid fuel storage container 0 And (4) at the back. The stand body 20 includes a hoop 210 of a support member 220.
The hoop 210 includes an arc-shaped groove adapted to the outer diameter of the cylindrical solid fuel storage container 10, and the hoop 210 is disposed along the length direction of the cylindrical solid fuel storage container 10, and can directly support the cylindrical solid fuel storage container 10.
The supporter 220 includes a swing arm 221 and a support bar 222. The upper end of the support rod 222 is hinged to the swing arm 221, and the support rod 222 and the swing arm 221 form a lever structure by using a hinge shaft as a fulcrum. According to the mission load and design load requirements of the cylindrical solid fuel storage container 10, the supporting members 220 are vertically arranged in 1 or more layers, and every 2 adjacent hoops 210 are a hoop group, arranged above the supporting members 220, and fixedly connected with the uppermost supporting member 220. The clasps 210 in the same clasping group form a lever structure by taking the hinge shaft of the supporting piece 220 fixedly connected with the clasps as a fulcrum.
When the supporting members 220 are vertically arranged in multiple layers, every 2 supporting members 220 adjacent to each other in the same layer are fixedly connected to the supporting members 220 in the adjacent lower layer, and the supporting members 220 in the same supporting member group form a lever structure by using the hinge shafts of the adjacent lower layer supporting members 220 fixedly connected to the supporting members as fulcrums. The gravity of the cylindrical solid fuel storage container 10 and the solid fuel contained therein depends on the cylinder rod action of the hoop 210 and the supporting member 220, so that self-balancing is realized, and complicated control systems and control operations are not needed.
As shown in fig. 2, a design method of a uniform loading pallet for transportation of a cylindrical solid fuel storage container comprises the following steps:
and S1, determining a task load, and determining the design load of the uniform loading bracket according to the task load.
Determining the design load of the load balancing bracket according to the task load as follows:
wherein G is the design load of the cylindrical solid fuel storage container, G 0 Is the task load of the cylindrical solid fuel container, and omega is a safety factor.
And S2, dividing the bracket bodies into an A bracket group and a B bracket group by taking the mass center of the cylindrical solid fuel storage container as a separation boundary, and respectively calculating the total design supporting load of the A bracket group and the total design supporting load of the B bracket group.
The total design support load of the A bracket group is as follows:
the total design supporting load of the B bracket group is as follows:
wherein Fa is the total design supporting load of the A bracket group, fb is the total design supporting load of the B bracket groupG is the design load of the cylindrical solid fuel storage container 10,
the distance between the supporting rod at the bottommost layer of the A bracket group and the mass center of the cylindrical solid fuel storage container,
the distance between the bottommost supporting rod of the B bracket group and the mass center of the cylindrical solid fuel storage container.
And S3, respectively calculating the number of hooping rings, the number of layers of the supporting pieces, the position of each supporting rod and the position of each hooping ring in the A supporting seat group and the B supporting seat group according to the design supporting load of each hooping ring. The method specifically comprises the following steps:
and S31, calculating the hoop loads in the A bracket group and the B bracket group.
Step S32, comparing the embracing ring loads in the A supporting seat group and the B supporting seat group with the design supporting load of a single embracing ring, and judging whether the quantity of the embracing rings, the number of layers of the supporting pieces, the position of each supporting rod and the position of each embracing ring in the A supporting seat group and the B supporting seat group meet the design requirements:
if the single embracing ring loads in the A bracket group and the B bracket group are smaller than the numerical value of the design supporting load of the single embracing ring, the number of the embracing rings, the number of layers of the supporting piece, the position of each supporting rod and the position of each embracing ring in the A bracket group and the B bracket group can meet the design requirement;
if the number of the embracing ring loads in the A bracket group and the B bracket group is larger than the number of the designed support load of a single embracing ring, the number of layers of the supporting pieces in the A bracket group and/or the B bracket group is increased until the number of the single embracing ring loads in the A bracket group and the B bracket group are smaller than the number of the designed support load of the single embracing ring.
In addition, before the step S3, the method further includes defining a hoop label, a distance from each hoop to a fulcrum of the lever structure where the hoop is located, a load borne by each hoop, and a total load of bracket layers in the a bracket group and the B bracket group, and specifically includes the following steps:
and S10, defining the label of each embracing ring.
The labels of the hoops in the A bracket group are as follows:
；
the number of each embracing ring in the B bracket group is as follows:
；
wherein m is the number of layers of the supporting pieces in the A bracket group, and m is a natural number not less than 1;
,
is a natural number; n is the number of layers of the supporting pieces in the B bracket group, and n is a natural number not less than 1;
,
is a natural number.
Specifically, suppose there are m layers of supporting members in the bracket group A and n layers of supporting members in the bracket group B;
define the embracing ring label in the A bracket group:
when the number of layers of the supporting piece is 1, the number of each embracing ring is as follows:
、
；
when the number of layers of the supporting piece is 2, the number of the hoops is as follows:
、
、
、
、
……
when the number of the supporting piece layers is m-1, the number of each embracing ring is as follows:
、
…… 
、
；
when the number of layers of the supporting piece is m, the number of each embracing ring is as follows:
、
…… 
、
；
and defining the number of the clasps in the B bracket group:
when the number of layers of the supporting piece is 1, the number of each embracing ring is as follows:
、
；
when the number of the supporting member layers is 2In the meantime, each hoop is labeled as:
、
、
、
、
……
when the number of the supporting piece layers is n-1, the number of the hooping ring is as follows:
、
…… 
、
；
when the number of the supporting piece layers is n, the number of each embracing ring is as follows:
、
…… 
、
。
and S20, defining the distance from each embracing ring to the fulcrum of the lever structure where the embracing ring is located.
Specifically, the distance from each hoop in the tray group a to the pivot thereof is defined as follows:
the distance from each hoop to the fulcrum of the lever structure where the hoop is located in the A bracket group is as follows:
；
specifically, when the number of layers of the supporting piece is 1, the distance from each hoop to the pivot of the hoop is as follows:
、
；
when the number of layers of the supporting piece is 2, the distance from each embracing ring to the fulcrum is as follows:
、
、
、
；
……
when the number of layers of the supporting piece is m-1, the distance from each embracing ring to the fulcrum is as follows:
、
…
、 
；
when the number of the supporting parts is m, the supporting parts are respectively encircled toThe distance of the pivot is as follows:
、
……
、
；
defining the distance from the embracing ring in the B bracket group to the fulcrum thereof:
the distance from each embracing ring to the fulcrum of the lever structure where the embracing ring is located in the B bracket group is as follows:
specifically, when the number of layers of the supporting piece is 1, the distance from each hoop to the pivot of the hoop is as follows:
、
；
when the number of layers of the supporting piece is 2, the distance from each embracing ring to the fulcrum is as follows:
、
、
、
；
……
when the number of the supporting part layers is n-1, the distance from each hoop to the pivot point is：
、 
……
、
；
When the number of the supporting piece layers is n, the distance from each embracing ring to the fulcrum is as follows:
、 
……
、
。
and S30, defining the load borne by each embracing ring.
Specifically, the load borne by each hoop in the A bracket group is defined as follows:
the load that each armful of ring in the A saddle group bore is:
；
specifically, when the number of layers of the supporting piece is 1, the load born by each hoop is as follows:
、
when the number of the supporting parts is 2, each embracing ring bearsThe load is as follows:
、
、
、
；
……
when the number of layers is m-1:
、 
……
、 
；
when the number of layers is m:
、 
……
、 
；
defining the load borne by each embracing ring in the B bracket group:
the load born by each embracing ring in the B bracket group is as follows:
；
specifically, when the number of layers of the supporting piece is 1, the load borne by each hoop is as follows:
、
when the number of the supporting piece layers is 2, the load born by each embracing ring is as follows:
、
、
、
；
……
when the number of layers is n-1:
、 
……
、 
；
when the number of layers is n:
、 
……
、
。
and S40, respectively defining the total load of the bracket layers in the bracket group A and the bracket group B.
Specifically, the total load of the bracket layer in the bracket group A is as follows:
the total load of the supporting members in the same layer in the A bracket group is as follows:
specifically, when the number of support member layers is 1, the total load of bracket layer is:
；
wherein,
when the number of the supporting parts is 2, the total load of the bracket layers is as follows:
；
wherein,
……
when the number of the supporting parts is m-1, the total load of the bracket layers is as follows:
；
wherein,
when the support number of piles is m, bracket layer total load is:
；
wherein,
the total load of each layer of brackets in the A bracket group is the same:
the total load of the bracket layers in the bracket group B is as follows:
the total load of the supporting members in the same layer in the B bracket group is as follows:
specifically, when the number of support member layers is 1, the total load of bracket layer is:
；
wherein,
when the number of the supporting parts is 2, the total load of the bracket layers is as follows:
；
wherein,
……
when the number of the supporting parts is n-1, the bracket layersThe total load is:
；
wherein,
when the support number of piles is n, bracket layer total load is:
；
wherein,
the total load of each layer of brackets in the group of B brackets is the same:
when calculating the hoop loads in the A bracket group and the B bracket group, the parameters can be used for calculation, specifically:
the load of each embracing ring in the A bracket group is as follows:
wherein,
a first hoop load in the same hoop group with m layers of supporting pieces in the A bracket group is set;
is the first in the same surrounding group with m layers of supporting pieces in the A supporting seat groupCarrying out secondary hoop loading;
m is the number of layers of the supporting pieces in the A bracket group, and m is a natural number not less than 1.
Specifically, when the number of layers of the supporting member is 1, the hoop loads are respectively as follows:
when the number of layers of the supporting piece is 2, the hoop loads are respectively as follows:
……
when the number of the supporting pieces is m-1, the hoop loads are respectively as follows:
……
when the number of layers of the supporting piece is m, the hoop loads are respectively as follows:
……
the load of each embracing ring in the B bracket group is as follows:
wherein,
a first embracing ring load in the same embracing ring group with n layers of supporting pieces in the B bracket group;
a second hoop load in the same hoop group with n layers of supporting pieces in the B supporting seat group;
n is the number of layers of the supporting pieces in the B bracket group, and n is a natural number not less than 1.
Specifically, when the number of layers of the supporting member is 1, the hoop loads are respectively as follows:
when the number of layers of the supporting piece is 2, the hoop loads are respectively as follows:
……
when the number of the supporting pieces is n-1, the hoop loads are respectively as follows:
……
when the number of the supporting pieces is n, the hoop loads are respectively as follows:
……
when the number of the supporting pieces in the A bracket group is 1, the load born by each embracing ring
、
Respectively supporting the load with the design of a single embracing ring
Make a comparison if
、
One of which is larger than the design supporting load of a single embracing ring
And increasing the layer number of the supporting pieces in the A tray group.
When the number of the supporting piece layers in the A bracket group is 2, the load born by each embracing ring
、
、
、
Respectively supporting the load with the design of a single embracing ring
Make a comparison if
、
、
、
One of which is larger than the design supporting load of a single embracing ring
And increasing the layer number of the supporting pieces in the A tray group.
……
When the number of the supporting pieces in the A bracket group is m-1Load to be borne by each embracing ring
、 
……
、 
Respectively supporting the load with the design of a single embracing ring
Make a comparison if
、
……
、 
One of which is larger than the design supporting load of a single embracing ring
The number of layers of the supporting members in the A tray group is increased.
When the number of the support piece layers in the A bracket group is m, the load born by each embracing ring
、 
……
、
Respectively supporting the load with the design of a single embracing ring
Make a comparison if
、
……
、
Any one of which is smaller than the design supporting load of a single hoop
The number of the supporting pieces in the A bracket group is m, and the number of the hoops can be calculated through the number of the supporting pieces in the A bracket group which is m
。
In addition, when the supporting member is added with one layer, the connecting mode of the supporting member adjacent to the hoop and the supporting member at the lower layer follows the connecting mode of the hoop and the supporting member, namely, the load born by the supporting member and the distance from the corresponding supporting rod to the fulcrum of the lever structure of the supporting member both follow the formula and the symbol. By this form, the distance between the same group of inner supporting rods and the fulcrum in the lever structure can be determined.
In addition, after the number of layers of the supporting pieces in the A bracket group is determined as m, the load born by each embracing ring and the design supporting load of a single embracing ring are utilized
The equation can be established to determine the middle support of each embracing ring and the lever structure thereofProportional relationship between points, proportional relationship between each support bar and the fulcrum in its lever structure.
Similarly, the load born by each embracing ring in the B bracket group is respectively calculated, and the load born by each embracing ring is respectively supported with the design of a single embracing ring
Judging in a comparison mode, and if the load borne by any one of the hoops in the B bracket group is greater than the designed supporting load of a single hoop
The number of the supporting piece layers is increased until the load born by any one of the hoops in the B bracket group is smaller than the designed supporting load of a single hoop
The number of layers n of struts in the B-tray set can then be determined. The number of the hoops can be calculated by the number n of layers
。
Example 1
As shown in fig. 3, when the number of layers of the supporting member is 1, which can meet the design requirement, for the a bracket group, the hoop loads are:
will be provided with
And
respectively supporting the load with the design of a single embracing ring
Establishing an operational relationship:
namely, it is
Namely that
Adding the two formulas to obtain
Calculating the above formula
Namely, it is
Substituting the above formula into
And
and then can derive
、
The proportional relationship of (a) enables the position of each support rod and the position of each embracing ring to be determined with the determination of the effective bearing distance from the center of mass of the cylindrical solid fuel storage container to the end.
According to the same method, the position of each supporting rod of the B bracket group and the position of each embracing ring can be calculated.
Example 2
Example 2 is different from example 1 in that the number of support member layers 2 can satisfy the design requirement, and in this state,
as shown in fig. 4, when the number of layers of the supporting member is 2, which can meet the design requirement, for the a bracket group, the hoop loads are:
will be provided with
、
、
And
respectively supporting the load with the design of a single embracing ring
Establishing an operational relationship:
namely that
Will be provided with
、
In a proportional relationship of
、
The proportional relation is substituted into the above formula and corresponding calculation is carried out, and the result can be obtained
、
In a proportional relationship of
、
The proportional relationship of (a) can determine the position of each supporting rod and the position of each embracing ring under the condition that the effective bearing distance from the mass center of the cylindrical solid fuel storage container to the end part is determined.
According to the same method, the position of each supporting rod of the B bracket group and the position of each embracing ring can be calculated.
Example 3
Example 3 differs from example 2 in that:
the load of each embracing ring in the uniform load bracket for transporting the cylindrical solid fuel storage container is completely equal, and in this case, for the A bracket group:
the calculation formulas are respectively compared to obtain
Likewise, the support rods in the support elements for the a bracket set can also be given:
for the clasps in the B-tray group, the same can be said:
for the support rods in the supports in the B-tray set, the same can be said:
the same principle supports the load for the total design of the A saddle group
And the total design support load of the B bracket group
In the case of a non-woven fabric,
can also derive
Due to the fact that
Therefore, the temperature of the molten metal is controlled,
therefore, under the condition that the loads of the hoops in the uniform carrying bracket for transporting the cylindrical solid fuel storage container are completely equal, the distances between the hoops are the same, the number of layers of the supporting pieces is the same, the distances between the supporting rods are the same, and the distances from the bracket group A to the mass center and the bracket group B to the mass center are the same.
For ease of description, spatially relative terms, such as "on," "over," "on top of," "above," and the like, may be used herein to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above" may include both an orientation of "above" and "below". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method of designing a load sharing tray for transportation of a cylindrical solid fuel storage vessel, comprising:
determining a task load, and determining the design load of the uniform loading bracket according to the task load;
dividing a plurality of bracket bodies into an A bracket group and a B bracket group by taking the mass center of the cylindrical solid fuel storage container as a separation boundary, and respectively calculating the total design supporting load of the A bracket group and the total design supporting load of the B bracket group;
respectively calculating the number of hooping in the A bracket group and the B bracket group, the number of layers of the supporting pieces, the position of each supporting rod and the position of each hooping according to the design supporting load of a single hooping;
the sum of the design supporting load of all the hoops in the bracket group A and the design supporting load of all the hoops in the bracket group B is not less than the design load of the uniform loading bracket; the number of hooping is an exponential function of 2 taking the number of the supporting part layers as an independent variable.
2. The load leveling bracket design method of claim 1, wherein the determining the design load of the load leveling bracket according to the mission load comprises:
wherein G is the design load of the cylindrical solid fuel storage vessel, G 0 Is the task load of the cylindrical solid fuel container, and omega is a safety factor.
3. The load sharing bracket design method according to claim 1, wherein the calculating of the total design support load of the A bracket set and the total design support load of the B bracket set comprises:
the total design support load of the A bracket group is as follows:
the total design supporting load of the B bracket group is as follows:
wherein Fa is the total design support load of the A tray set, fb is the total design support load of the B tray set, G is the design load of the cylindrical solid fuel storage container,
the distance between the supporting rod at the bottommost layer of the A bracket group and the mass center of the cylindrical solid fuel storage container,
the distance between the support rod at the bottommost layer of the B bracket group and the mass center of the cylindrical solid fuel storage container.
4. The method for designing the load balancing bracket according to claim 1, wherein the step of calculating the number of hoops, the number of layers of the supporting members, the position of each supporting rod and the position of each hoop in the A-bracket set and the B-bracket set respectively according to the design supporting load of each hoop comprises the following steps:
calculating the hoop loads in the A bracket group and the B bracket group;
hold in the palm the design that each armful of ring load and single armful of ring in seat group and the B support seat group are held with A and support the load and carry out the comparison, judge that whether the position of embracing the position of ring quantity, support piece, every bracing piece and every armful ring in A holds in the palm seat group and the B support seat group satisfies the design demand:
if the single embracing ring loads in the A bracket group and the B bracket group are smaller than the numerical value of the design supporting load of the single embracing ring, the number of the embracing rings, the number of layers of the supporting piece, the position of each supporting rod and the position of each embracing ring in the A bracket group and the B bracket group can meet the design requirement;
if the number of the embracing ring loads in the A bracket group and the B bracket group is larger than the number of the designed support load of a single embracing ring, the number of layers of the support piece in the A bracket group and/or the B bracket group is increased until the number of the single embracing ring loads in the A bracket group and the B bracket group are smaller than the number of the designed support load of the single embracing ring.
5. The method for designing the load balancing bracket as recited in claim 4, wherein the step of calculating the number of hoops, the number of layers of the supporting members, the positions of the supporting rods and the positions of each hoop in the A-bracket set and the B-bracket set respectively according to the design of the supporting load of each hoop is preceded by the steps of:
defining the label of each embracing ring;
defining the distance from each embracing ring to the fulcrum of the lever structure where the embracing ring is located;
defining the load born by each embracing ring;
the total load of the supports in the same layer in the group a and the group B is defined separately.
6. The method of claim 5, wherein the defining each hoop label comprises defining a hoop label in each of the A-tray set and the B-tray set;
the number of each embracing ring in the A bracket group is as follows:
；
the number of each embracing ring in the B bracket group is as follows:
；
wherein m is the number of layers of the supporting pieces in the A bracket group, and m is a natural number not less than 1;
,
is a natural number; n is the number of layers of the supporting pieces in the B bracket group, and n is a natural number not less than 1;
,
is a natural number.
7. The method as claimed in claim 6, wherein the step of defining the distance from each hoop to the fulcrum of the lever structure comprises: respectively defining the distance from each hoop in the A bracket group and the B bracket group to the fulcrum of the lever structure where the hoop is located; wherein,
the distance from each hoop to the fulcrum of the lever structure where the hoop is located in the A bracket group is as follows:
；
the distance from each embracing ring to the fulcrum of the lever structure where the embracing ring is located in the B bracket group is as follows:
。
8. the method of claim 7, wherein the defining the load to which each hoop bears comprises: respectively defining the load borne by each embracing ring in the A bracket group and the B bracket group; wherein,
the load that each armful of ring in the A saddle group bore is:
；
the load born by each embracing ring in the B bracket group is as follows:
。
9. the method of claim 8, wherein the step of defining the total load of the support members in the same layer in the A-tray set and the B-tray set comprises:
the total load of the supporting members in the same layer in the A bracket group is as follows:
the total load of the supporting members in the same layer in the B bracket group is as follows:
wherein,
the total load of the supporting members in the same layer in the A bracket group;
the total load of the struts in the same layer in the B-tray set.
10. The method of claim 8, wherein calculating each hoop load within the group of brackets a and the group of brackets B comprises:
the ring holding loads in the A bracket group are as follows:
the ring holding load in the B bracket group is as follows:
wherein,
a first hoop load in the same hoop group with m layers of supporting pieces in the A bracket group is set;
a second embracing load in the same embracing group with m layers of supporting pieces in the bracket group A is adopted;
a first hoop load in the same hoop group with n layers of supporting pieces in the B supporting seat group;
a second hoop load in the same hoop group with n layers of supporting pieces in the B supporting seat group;
m is the number of layers of the supporting pieces in the A bracket group, and m is a natural number not less than 1; n is the number of layers of the supporting pieces in the B tray group, and n is a natural number not less than 1.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB600096A (en) * | 1945-09-27 | 1948-03-31 | Donald Jackson | Improvements in or relating to television or like apparatus incorporating a cathode ray tube |
| CN108275424A (en) * | 2018-03-26 | 2018-07-13 | 沈阳航天新光集团有限公司 | A kind of abnormity nacelle high-precision docking transfer car(buggy) |
| CN108609314A (en) * | 2018-06-27 | 2018-10-02 | 中车长江车辆有限公司 | Storage-transportation tank body and tank container, horizontal tank, road tank vehicle, tank car |
| CN209714978U (en) * | 2019-01-25 | 2019-12-03 | 北京瑞莱博石油技术有限公司 | A kind of multielement hot fluid generator |
| CN215160263U (en) * | 2021-06-17 | 2021-12-14 | 星河动力(北京)空间科技有限公司 | Lifting device of carrier rocket |
-
2022
- 2022-09-13 CN CN202211107012.5A patent/CN115183636B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB600096A (en) * | 1945-09-27 | 1948-03-31 | Donald Jackson | Improvements in or relating to television or like apparatus incorporating a cathode ray tube |
| CN108275424A (en) * | 2018-03-26 | 2018-07-13 | 沈阳航天新光集团有限公司 | A kind of abnormity nacelle high-precision docking transfer car(buggy) |
| CN108609314A (en) * | 2018-06-27 | 2018-10-02 | 中车长江车辆有限公司 | Storage-transportation tank body and tank container, horizontal tank, road tank vehicle, tank car |
| CN209714978U (en) * | 2019-01-25 | 2019-12-03 | 北京瑞莱博石油技术有限公司 | A kind of multielement hot fluid generator |
| CN215160263U (en) * | 2021-06-17 | 2021-12-14 | 星河动力(北京)空间科技有限公司 | Lifting device of carrier rocket |
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