CN113640098A - Semi-rigid node test device capable of adjusting rigidity - Google Patents
Semi-rigid node test device capable of adjusting rigidity Download PDFInfo
- Publication number
- CN113640098A CN113640098A CN202110881632.3A CN202110881632A CN113640098A CN 113640098 A CN113640098 A CN 113640098A CN 202110881632 A CN202110881632 A CN 202110881632A CN 113640098 A CN113640098 A CN 113640098A
- Authority
- CN
- China
- Prior art keywords
- plate
- component
- constraint
- test device
- semi
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the technical field of power transmission line tower tests, and aims to solve the problem that the existing test device cannot simulate the condition that nodes at two ends of a test member are constrained by a hinge device at two ends of the test member through a knife edge hinge; each test assembly comprises a loading part and a connecting part, wherein the loading part is hinged with the connecting part, and the loading part can transmit load to the test component through the connecting part; a constraint component is arranged between the loading component and the connecting component, and the constraint rigidity of the constraint component can be adjusted; the beneficial effects are that: due to the constraint action of the constraint component, the rotation of the connecting component is limited, so that the deformation of the test member is restrained in turn, the constraint rigidity of the constraint component can be adjusted to match the actual constraint condition of the node, and the effective simulation of the semi-rigid support is realized.
Description
Technical Field
The invention relates to the technical field of power transmission line tower tests, in particular to a rigidity-adjustable semi-rigid node test device.
Background
The test of the transmission tower structure is an indispensable important means for checking and verifying the overall mechanical property and the structural rationality of the tower and guiding the optimization design of the tower structure. The existing test device simulates the hinge devices at two ends of a test member through a knife edge hinge and applies load to a hinge support above the test member so as to test the performance of the test member, but because the angle of the knife edge hinge cannot be restricted, the test member can deflect freely after being compressed and deformed, namely, nodes at two ends of the test member have no restriction force, which is inconsistent with the actual stress condition of an iron tower, the device cannot simulate the condition that the nodes at two ends of the test member have restriction.
Disclosure of Invention
The invention aims to provide a rigidity-adjustable semi-rigid node test device, which solves the problem that the existing test device simulates hinged devices at two ends of a test member through a knife edge hinge, but because the angle of the knife edge hinge cannot be constrained, free deflection is unconstrained after the test member is compressed and deformed, and the free deflection is not in accordance with the actual stress condition of an iron tower, so that the device cannot simulate the condition that nodes at two ends of the test member have constraint.
The embodiment of the invention is realized by the following steps:
a semi-rigid node test device with adjustable rigidity comprises two test assemblies which are oppositely arranged, wherein a test component is arranged between the two test assemblies;
each test assembly comprises a loading part and a connecting part, wherein the loading part is hinged with the connecting part, and the loading part can transmit load to the test component through the connecting part;
and a constraint component is arranged between the loading component and the connecting component, and the constraint rigidity of the constraint component can be adjusted.
The relative acting force is applied to the two loading parts, so that the middle test member is pressed to deform, the loading parts are hinged with the connecting parts, the test member can drive the connecting parts connected with the test member to rotate after being deformed, but the connecting parts are limited due to the constraint action of the constraint parts, so that the deformation of the test member is restrained in reverse, and the constraint rigidity of the constraint parts can be adjusted, so that the semi-rigid support can be matched according to the actual constraint condition of the node, the effective simulation of the semi-rigid support is realized, and the actual stress condition of the iron tower is better met.
In one embodiment:
the restricting member is an elastic structural member.
The elastic structural part has elasticity and restoring force, can limit the rotation degree of the connecting part to a certain degree, and can also restore to an initial state to test and use different components for many times.
In one embodiment:
the loading part is provided with a knife edge, the connecting part is provided with a knife groove, the knife groove is matched with the knife edge, and the knife edge can freely rotate in the knife groove.
The loading part is hinged with the connecting part through the rotatable connection of the knife edge and the knife groove, the knife edge can rotate freely in the knife groove, the angle of the knife edge changes freely, and the connecting part connected with the knife edge is driven to rotate after the adaptive test component deforms.
In one embodiment:
the loading part comprises a first plate and a second plate, the first plate is horizontally arranged, the second plate is vertically arranged, the second plate is fixedly connected to the first plate, and the knife edge is arranged at the end part of the second plate.
In one embodiment:
the connecting part comprises a horizontally arranged plate III and a vertically arranged plate IV, the plate IV is fixedly connected to the plate III, the knife groove is formed in the surface of the plate III, and the knife edge can rotate in the knife groove to change the angle between the plate II and the plate III.
The knife edge at the two end parts of the plate is matched with the knife groove on the surface of the plate, so that the knife edge can freely rotate in the knife groove, specifically, the rotation means that the knife edge is always positioned in the knife groove, but the second plate can deflect left and right relative to the third plate, the angle between the second plate and the third plate is further changed, and the form that the second plate and the third plate are hinged is realized.
In one embodiment:
the hinge form of the loading part and the connecting part is not limited to the form that the knife edge is matched with the knife groove, and other structures capable of realizing angle change of the loading part and the connecting part are available.
In one embodiment:
the second plate and the fourth plate are located in the same vertical plane.
The two are in the same vertical plane, so that the second plate and the third plate can rotate when the fourth plate moves along with the test component.
In one embodiment:
the test member is fixedly connected to the fourth plate.
In one embodiment:
and the fourth plate is connected with the test component through bolts.
In one embodiment:
the section of the cutter groove is V-shaped.
The knife edge can rotate in the knife groove conveniently.
In one embodiment:
the length of the knife groove is determined according to the contact length of the second plate and the third plate, and the length of the knife groove is slightly larger than the contact length.
The knife edge can be accommodated completely.
In one embodiment:
the second plate is fixedly connected to the middle position of the first plate, and the first plate and the second plate form a T-shaped structure;
the fourth plate is fixedly connected to the middle of the third plate, and the third plate and the fourth plate form a T-shaped structure.
The whole structure is symmetrical, the structure stability is good, and the force transmission is clear.
In one embodiment:
the constraint component comprises a plurality of constraint units, and the constraint units are uniformly arranged on two sides of the second plate.
The plurality of constraint units act together and are uniformly distributed, so that the constraint rigidity at each position is uniform.
In one embodiment:
the restraining unit is a spring.
The springs are arranged between the first plate and the third plate, have elasticity, can be stretched and restored within limits, are fixed at different positions on the first plate and the third plate, or adopt springs with different rigidity, or select different numbers of springs, and can adjust the rigidity of the constraint component so as to be suitable for different conditions.
In one embodiment:
the setting mode of the spring is as follows: the extension direction of the spring is perpendicular to the plate surfaces of the first plate and the third plate.
In one embodiment:
and two sides of the second plate are respectively provided with a group of springs, and the number of each group of springs is 3-5.
In one embodiment:
the constraint unit is detachably or fixedly connected with the first plate and the third plate.
In one embodiment:
and two ends of the constraint unit are respectively welded with the first plate and the third plate.
In one embodiment:
and two ends of the constraint unit are respectively connected with the first plate and the third plate by adopting buckle rods and screws.
In one embodiment:
the screw penetrates through the first plate, the buckling rod is provided with a bolt hole, the bolt hole is matched with the screw, the buckling rod is connected to one end of the screw, and the constraint component is clamped on the bottom surface of the first plate by the buckling rod, so that the constraint component is connected to the first plate;
the connection principle of the third plate and the constraint component is the same as that of the third plate.
In one embodiment:
and one end of the loading component is provided with a power component for providing pressure or thrust.
In one embodiment:
the power component is a jack.
In one embodiment:
and a gasket is arranged between the loading component and the power component.
The loading part is prevented from being damaged.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
the relative acting force is applied to the two loading parts, so that the middle test member is pressed to deform, the loading parts are hinged with the connecting parts, the test member can drive the connecting parts connected with the test member to rotate after being deformed, but the connecting parts are limited due to the constraint action of the constraint parts, so that the deformation of the test member is restrained in reverse, and the constraint rigidity of the constraint parts can be adjusted, so that the semi-rigid support can be matched according to the actual constraint condition of the node, the effective simulation of the semi-rigid support is realized, and the actual stress condition of the iron tower is better met.
Drawings
FIG. 1 is a front view of a stiffness adjustable semi-rigid joint test apparatus according to the present invention.
FIG. 2 is a side view of an adjustable stiffness semi-rigid joint test apparatus according to the present invention.
Icon: 1-a loading member; 11-plate one; 12-plate two; 2-a connecting member; 13-plate three; 14-plate four; 3-a constraining member; 41-knife edge; 42-knife grooves; 5-a test member; 6-a power component; 7-a gasket; 81-screw rod; 82-a buckle rod; 9-bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. 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 invention.
Example 1
Referring to fig. 1-2, the present embodiment provides a stiffness-adjustable semi-rigid node testing apparatus, which includes two testing assemblies disposed oppositely, a testing member 5 is mounted between the two testing assemblies, and the two testing assemblies are disposed above and below each other.
The test assembly located above comprises a loading part 1 and a connecting part 2, wherein the loading part 1 is hinged with the connecting part 2, and the loading part 1 can transmit load to a test component 5 through the connecting part 2.
The loading part 1 comprises a first plate 11 arranged horizontally and a second plate 12 arranged vertically, the second plate 12 is fixedly connected to the middle position below the first plate 11, and the first plate 11 and the second plate 12 form a T-shaped structure.
The connecting part 2 comprises a horizontally arranged plate III 13 and a vertically arranged plate IV 14, the plate IV 14 is fixedly connected to the middle position below the plate III 13, and the plate III 13 and the plate IV 14 form a T-shaped structure.
Specifically, the second plate 12 and the fourth plate 14 are located in the same vertical plane, and the test member 5 is fixedly connected to the side surface of the fourth plate 14 through a bolt 9.
The end part of the second plate 12 is provided with a knife edge 41, the top surface of the third plate 13 is provided with a knife groove 42, the knife groove 42 is matched with the knife edge 41, the knife edge 41 can freely rotate in the knife groove 42, and the angle between the two plate surfaces of the second plate 12 and the third plate 13 is changed.
In this embodiment, the cross section of the knife groove 42 is V-shaped, the opening of the V-shape has 120 ° to 150 °, which facilitates the deflection of the second plate 12, the knife edge 41 is freely deflected in the knife groove 42, and the knife groove 42 can be coated with some lubricating substances, such as grease, etc., to reduce the friction between the two, which facilitates the rotation of the knife edge 41.
In this embodiment, the end of the second plate 12 is provided with two inclined planes, the two inclined planes are tapered, the protruding tapered surface can be just clamped into the V-shaped knife groove 42, but the included angle of the taper is smaller than that of the V-shaped knife groove 42, otherwise, the second plate 12 is not rotated conveniently.
In addition, the length of the knife groove 42 is determined according to the contact length of the second plate 12 and the third plate 13, and the length of the knife groove 42 is slightly larger than the contact length, so that the knife edge 41 can be completely accommodated.
And a constraint component 3 is arranged between the loading component 1 and the connecting component 2, and the constraint rigidity of the constraint component 3 can be adjusted. Specifically, the constraining member 3 is disposed between the first plate 11 and the third plate 13, and the constraining member 3 is an elastic structural member having elasticity and restoring force.
Specifically, the restricting part 3 comprises two groups of springs, the number of the springs in each group is 3-5, and the two groups of springs are respectively arranged on two sides of the second plate 12. The telescopic direction of each spring is perpendicular to the surfaces of the first plate 11 and the third plate 13, and each spring is detachably connected with the first plate 11 and the third plate 13. Specifically, one end of the spring is connected to the first plate 11, the other end of the spring is connected to the third plate 13, a hole matched with the screw 81 is formed in the surface of the first plate 11, the screw 81 penetrates through the first plate 11, a buckle rod 82 is installed at one end of the screw 81, a bolt hole is formed in the buckle rod 82 and used for being connected with the screw 81, and a part of the spring is clamped on the bottom surface of the first plate 11 through the buckle rod 82, so that the connection relationship between the spring and the first plate 11 is established.
The connection between the spring and the third plate 13 is as above.
The above description describes the specific structure of the upper test assembly, and the structure of the lower test assembly is the same, but the direction is opposite, specifically, the T-shaped structure formed by the first plate 11 and the second plate 12, and the T-shaped structure formed by the third plate 13 and the fourth plate 14 are rotated by 180 °, that is, the structure of the semi-rigid node test device in this embodiment is symmetrical, the two plates four 14 are closest, the test member 5 is fixed between the two plates four 14, in the lower test assembly, the first plate 11 is located below the third plate 13, the knife edge 41 of the second plate 12 is still disposed at the end, and the knife groove 42 is disposed on the bottom surface of the third plate 13, and the knife edge 41 and the knife groove 42 are still cooperated with each other.
And the end surfaces of the two first plates 11 are respectively provided with a power component 6 for providing pressure or thrust, and a gasket 7 is arranged between the first plates 11 and the power components 6 to avoid damaging the first plates 11, in the embodiment, the power components 6 are jacks, and other power-providing instruments can be selected according to actual conditions.
When the test component is used, firstly, the test component 5 is fixed on the two plates four 14 through the bolts 9, then the power part 6 is started, the power part 6 positioned above applies pressure, the power part 6 positioned below applies thrust, the test component 5 is extruded from two directions, the test component 5 is deformed under pressure to drive the plate four 14 connected with the test component to rotate, and as the plate three 13 is connected with the plate four 14, the plate three 13 can rotate along with the plate four 14, which is shown in the way that the plate three 13 and the plate four 14 incline to a certain degree, the knife edge 41 rotates in the knife groove 42, the included angle between the plate three 13 and the plate two 12 is changed, but the angle is restrained by the spring, so that the rotation of the plate three 13 and the plate four 14 is limited, and the deformation of the test component 5 is restrained in the reverse way.
Regarding the adjustment of the constraint rigidity of the constraint component 3, the springs can be fixed at different positions on the first plate 11 and the third plate 13, the distance between the spring and the second plate 12 is changed, or springs with different rigidities are adopted, or different numbers of springs are selected, so that the rigidity of the constraint component 3 can be adjusted, the matching can be performed according to the actual constraint condition of the node, the effective simulation of the semi-rigid support is realized, and the actual stress condition of the iron tower is better met.
Example 2
This example differs from example 1 in that: the constraint unit is fixedly connected with the first plate 11 and the third plate 13, specifically, one end of the spring is welded and fixed on the first plate 11, and the other end of the spring is welded and fixed on the third plate 13.
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. The utility model provides a semi-rigid node test device of adjustable rigidity which characterized in that:
the device comprises two oppositely arranged test assemblies, and a test component (5) is arranged between the two test assemblies;
each test assembly comprises a loading part (1) and a connecting part (2), wherein the loading part (1) is hinged with the connecting part (2), and the loading part (1) can transmit load to the test component (5) through the connecting part (2);
a constraint component (3) is arranged between the loading component (1) and the connecting component (2), and the constraint rigidity of the constraint component (3) can be adjusted.
2. The stiffness-adjustable semi-rigid joint test device of claim 1, wherein:
the restraining component (3) is an elastic structural part.
3. The stiffness-adjustable semi-rigid joint test device of claim 1, wherein:
the loading part (1) is provided with a knife edge (41), the connecting part (2) is provided with a knife groove (42), the knife groove (42) is matched with the knife edge (41), and the knife edge (41) can freely rotate in the knife groove (42).
4. The stiffness-adjustable semi-rigid joint test device of claim 3, wherein:
the loading part (1) comprises a first plate (11) and a second plate (12), wherein the first plate (11) is horizontally arranged, the second plate (12) is vertically arranged, the first plate (11) is fixedly connected with the second plate, and the knife edge (41) is arranged at the end part of the second plate (12).
5. The stiffness-adjustable semi-rigid joint test device of claim 4, wherein:
the connecting part (2) comprises a horizontally arranged plate III (13) and a vertically arranged plate IV (14), the plate IV (14) is fixedly connected to the plate III (13), the knife groove (42) is arranged on the surface of the plate III (13), and the knife edge (41) can rotate in the knife groove (42) to change the angle between the plate II (12) and the plate III (13).
6. The stiffness-adjustable semi-rigid joint test device of claim 5, wherein:
the second plate (12) is fixedly connected to the middle position of the first plate (11), and the first plate (11) and the second plate (12) form a T-shaped structure;
the plate four (14) is fixedly connected to the middle position of the plate three (13), and the plate three (13) and the plate four (14) form a T-shaped structure.
7. The stiffness-adjustable semi-rigid joint test device of claim 5, wherein:
the constraint component (3) comprises a plurality of constraint units which are uniformly arranged on two sides of the second plate (12).
8. The stiffness-adjustable semi-rigid joint test device of claim 7, wherein:
the constraint unit is detachably or fixedly connected with the first plate (11) and the third plate (13).
9. The stiffness-adjustable semi-rigid joint test device of any one of claims 1 to 8, wherein:
one end of the loading component (1) is provided with a power component (6) for providing pressure or thrust.
10. The adjustable stiffness semi-rigid joint test device of claim 9, wherein:
and a gasket (7) is arranged between the loading component (1) and the power component (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110881632.3A CN113640098B (en) | 2021-08-02 | 2021-08-02 | Semi-rigid node test device with adjustable rigidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110881632.3A CN113640098B (en) | 2021-08-02 | 2021-08-02 | Semi-rigid node test device with adjustable rigidity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113640098A true CN113640098A (en) | 2021-11-12 |
| CN113640098B CN113640098B (en) | 2023-10-03 |
Family
ID=78419348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110881632.3A Active CN113640098B (en) | 2021-08-02 | 2021-08-02 | Semi-rigid node test device with adjustable rigidity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113640098B (en) |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1545142A1 (en) * | 1984-06-08 | 1990-02-23 | Московский Автомобильно-Дорожный Институт | Apparatus for determining stressed-strained state of specimen in eccentric compression |
| KR20030001616A (en) * | 2001-06-25 | 2003-01-08 | 현대자동차주식회사 | Outside panel testing device of vehicle |
| JP3124290U (en) * | 2006-06-02 | 2006-08-10 | 株式会社島津製作所 | Load jig |
| CN201673091U (en) * | 2010-05-19 | 2010-12-15 | 华侨大学 | Auxiliary loading device for compressed column test |
| CN103712850A (en) * | 2014-01-01 | 2014-04-09 | 浙江建设职业技术学院 | Scissor type loading positioning device for column and a loading positioning method |
| JP2014085250A (en) * | 2012-10-24 | 2014-05-12 | Nippon Steel & Sumitomo Metal | Collision performance evaluation method of compression bent part |
| CN103837413A (en) * | 2014-03-07 | 2014-06-04 | 中南大学 | Concrete tensile creep testing device and concrete shrinkage stress creep testing method |
| CN104344993A (en) * | 2013-07-23 | 2015-02-11 | 国家电网公司 | Method for testing and measuring member bearing capacity and material performance parameters |
| CN104344789A (en) * | 2013-07-23 | 2015-02-11 | 国家电网公司 | System and method for monitoring member deflection in bearing capacity test |
| CN104865138A (en) * | 2015-05-20 | 2015-08-26 | 浙江吉利汽车研究院有限公司 | Device for measuring mechanical property of test piece |
| CN105115706A (en) * | 2015-07-17 | 2015-12-02 | 河海大学 | Axial compression test spherical hinge support and using method thereof |
| CN207066755U (en) * | 2016-08-31 | 2018-03-02 | 中南大学 | The experimental rig of tunnel bottom structure accumulated damage under a kind of cyclic load |
| CN109186980A (en) * | 2018-09-17 | 2019-01-11 | 南京林业大学 | A kind of one-way eccentric loading device of continuously adjustable examination |
| JP2020085710A (en) * | 2018-11-28 | 2020-06-04 | 日本製鉄株式会社 | Compression bending tester and compression bending test method |
| CN111982483A (en) * | 2020-08-19 | 2020-11-24 | 中国航空工业集团公司沈阳飞机设计研究所 | Axial compression loading reversing device with initial curvature eccentric test piece |
| CN212379183U (en) * | 2020-08-13 | 2021-01-19 | 广东工业大学 | Adjustable loading device for concrete column axial compression and bias test |
| KR102247624B1 (en) * | 2020-11-23 | 2021-04-30 | 인천대학교 산학협력단 | Pile test device and pile test method capable of simulating ground deformation |
| CN112982475A (en) * | 2021-03-04 | 2021-06-18 | 衡水衡源电力建设有限责任公司 | Auxiliary mounting tool for prefabricated foundation of power transmission line |
-
2021
- 2021-08-02 CN CN202110881632.3A patent/CN113640098B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1545142A1 (en) * | 1984-06-08 | 1990-02-23 | Московский Автомобильно-Дорожный Институт | Apparatus for determining stressed-strained state of specimen in eccentric compression |
| KR20030001616A (en) * | 2001-06-25 | 2003-01-08 | 현대자동차주식회사 | Outside panel testing device of vehicle |
| JP3124290U (en) * | 2006-06-02 | 2006-08-10 | 株式会社島津製作所 | Load jig |
| CN201673091U (en) * | 2010-05-19 | 2010-12-15 | 华侨大学 | Auxiliary loading device for compressed column test |
| JP2014085250A (en) * | 2012-10-24 | 2014-05-12 | Nippon Steel & Sumitomo Metal | Collision performance evaluation method of compression bent part |
| CN104344993A (en) * | 2013-07-23 | 2015-02-11 | 国家电网公司 | Method for testing and measuring member bearing capacity and material performance parameters |
| CN104344789A (en) * | 2013-07-23 | 2015-02-11 | 国家电网公司 | System and method for monitoring member deflection in bearing capacity test |
| CN103712850A (en) * | 2014-01-01 | 2014-04-09 | 浙江建设职业技术学院 | Scissor type loading positioning device for column and a loading positioning method |
| CN103837413A (en) * | 2014-03-07 | 2014-06-04 | 中南大学 | Concrete tensile creep testing device and concrete shrinkage stress creep testing method |
| CN104865138A (en) * | 2015-05-20 | 2015-08-26 | 浙江吉利汽车研究院有限公司 | Device for measuring mechanical property of test piece |
| CN105115706A (en) * | 2015-07-17 | 2015-12-02 | 河海大学 | Axial compression test spherical hinge support and using method thereof |
| CN207066755U (en) * | 2016-08-31 | 2018-03-02 | 中南大学 | The experimental rig of tunnel bottom structure accumulated damage under a kind of cyclic load |
| CN109186980A (en) * | 2018-09-17 | 2019-01-11 | 南京林业大学 | A kind of one-way eccentric loading device of continuously adjustable examination |
| JP2020085710A (en) * | 2018-11-28 | 2020-06-04 | 日本製鉄株式会社 | Compression bending tester and compression bending test method |
| CN212379183U (en) * | 2020-08-13 | 2021-01-19 | 广东工业大学 | Adjustable loading device for concrete column axial compression and bias test |
| CN111982483A (en) * | 2020-08-19 | 2020-11-24 | 中国航空工业集团公司沈阳飞机设计研究所 | Axial compression loading reversing device with initial curvature eccentric test piece |
| KR102247624B1 (en) * | 2020-11-23 | 2021-04-30 | 인천대학교 산학협력단 | Pile test device and pile test method capable of simulating ground deformation |
| CN112982475A (en) * | 2021-03-04 | 2021-06-18 | 衡水衡源电力建设有限责任公司 | Auxiliary mounting tool for prefabricated foundation of power transmission line |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113640098B (en) | 2023-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Anderson et al. | Vibration and stability of plates using finite elements | |
| US9562585B2 (en) | Vibration-insulating device and system | |
| Leckie et al. | The effect of lumped parameters on beam frequencies | |
| US2271935A (en) | Vibration damper | |
| US3748370A (en) | Spacer-damper for conductors of overhead electric lines | |
| US20030222194A1 (en) | Vibration isolation system | |
| CN106320561A (en) | Quadrilateral pivoting friction damper | |
| CN113640098A (en) | Semi-rigid node test device capable of adjusting rigidity | |
| CN112095833A (en) | Variable-rigidity friction damper | |
| CN108035598B (en) | Semi-active/passive hybrid damping device | |
| US11490532B2 (en) | Hinge assemblies | |
| US6364274B1 (en) | Seismic isolator for exhibits | |
| US11524765B2 (en) | Device for structure testing | |
| CN111207179A (en) | Three-way shock absorber and using method thereof | |
| CN209831693U (en) | Rope drives flexible mechanical joint of spring | |
| CN107643155B (en) | Hydraulic spherical connector with retaining mechanism | |
| US4591136A (en) | Spring mechanisms | |
| US11674867B2 (en) | Unmanned aerial vehicle (UAV) test bench | |
| CN200971942Y (en) | Combined and modular vibration-damper | |
| CN217360127U (en) | Test tool | |
| CN113357308B (en) | High-efficient low frequency vibration isolation device | |
| TWI706095B (en) | Geometrically nonlinear isolation system | |
| CN204718900U (en) | The pure bending performance test apparatus of beam | |
| CN212670260U (en) | Damping device for road and bridge | |
| CN212055666U (en) | Three-way shock absorber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |