CN112541217A - Pneumatic optimization device of structure based on bionics - Google Patents
Pneumatic optimization device of structure based on bionics Download PDFInfo
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- CN112541217A CN112541217A CN202011449408.9A CN202011449408A CN112541217A CN 112541217 A CN112541217 A CN 112541217A CN 202011449408 A CN202011449408 A CN 202011449408A CN 112541217 A CN112541217 A CN 112541217A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
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- G06F30/20—Design optimisation, verification or simulation
- G06F30/28—Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
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Abstract
The invention relates to the field of building experiment devices, and particularly discloses a pneumatic structure optimization device based on bionics, which comprises a wind tunnel cylinder, wherein a horizontally arranged substrate is fixed inside the wind tunnel cylinder, a cavity is formed in the center of the substrate, a building model is detachably arranged in the center of the cavity, and wind-proof blocks are bolted on the periphery of the building model; the outer surface of the windproof block is streamline, and the bottom of the windproof block is flush with the substrate; four grooves parallel to the side wall of the building model are formed in the concave cavity, first sliding seats are arranged in the grooves in a sliding mode, a wind pressure testing device is arranged on each first sliding seat, a bolt is arranged on each first sliding seat, and a plurality of pin holes distributed at equal intervals are formed in each sliding groove; the cross bar is horizontally fixed on the first sliding seat; the detection rod is vertically arranged, and the bottom end of the detection rod is connected to the cross rod in a sliding mode; the detection rod is provided with a plurality of wind sensors; the invention aims to solve the pneumatic optimization problem based on the biological bionic structure.
Description
Technical Field
The invention relates to the technical field of building experiment devices, and particularly discloses a pneumatic structure optimization device based on bionics.
Background
China is a country with wide regions, in the east coast and the northwest coast of China, the effect of wind is strong all the year round, in the east coast, the economy is developed, the modernization degree is high, along with the acceleration of the urbanization process, the population of cities is rapidly increased, in the coastal cities with the small-sized gold, the land resources become very scarce, and the high-rise buildings can make the limited land resources more fully utilized, so the development of high-rise buildings is imperative.
When designing a super high-rise building, the wind resistance of the high-rise building is a factor which needs to be considered in a key way, and the bionic building has important significance in improving the wind resistance of the building, for example, a dome of a rectangular bird nest developed on the basis of a spherical bird nest greenhouse adopts a streamline design, the appearance of the dome is similar to that of an automobile, and the bionic building is bionic application for reducing wind resistance and improving wind resistance; however, at present, no pneumatic optimization experimental device for the bionic building exists, the pressure condition of the surface of the streamline bionic structure cannot be accurately measured, and pneumatic optimization on the bionic building cannot be carried out.
Disclosure of Invention
The invention aims to provide a pneumatic optimization device of a structure based on bionics, so as to solve the problem of pneumatic optimization based on the bionics structure.
In order to achieve the purpose, the basic scheme of the invention is as follows:
the pneumatic structure optimization device based on bionics comprises a wind tunnel cylinder, wherein a horizontally arranged substrate is fixed inside the wind tunnel cylinder, a cavity is formed in the center of the substrate, a building model can be disassembled in the center of the cavity, and windproof blocks are bolted on the periphery of the building model; the outer surface of the windproof block is streamline, and the bottom of the windproof block is flush with the substrate; four grooves parallel to the side wall of the building model are formed in the concave cavity, first sliding seats are arranged in the grooves in a sliding mode, a wind pressure testing device is arranged on each first sliding seat, a bolt is arranged on each first sliding seat, and a plurality of pin holes distributed at equal intervals are formed in each sliding groove; the wind pressure testing device comprises a cross rod and a detecting rod, and the cross rod is horizontally fixed on the first sliding seat; the detection rod is vertically arranged, the bottom end of the detection rod is connected to the cross rod in a sliding mode, and a locking device is further arranged at the bottom end of the detection rod; the detection rod is attached to the outer surface of the windproof block, and a plurality of uniformly distributed wind sensors are arranged on the detection rod; and the base plate is also provided with a wind power generation device.
Optionally, wind power generation device includes fan and second slide, seted up a plurality of ring channels on the base plate, the ring channel all is concentric with the building model, and the ring channel is equidistant distribution, and sliding connection has the second slide in the ring channel, can dismantle on the second slide and be connected with the fan, and the fan is towards the building model.
Optionally, the cross bars are all arranged in the concave cavity, connecting holes are formed in the end portions of the cross bars, supporting rods are connected in the connecting holes in a sliding mode, pressure sensors are fixed to the end portions of the supporting rods and attached to the side faces of the building model, and springs are fixed between the supporting rods and the cross bars; the detection rod comprises a moving end and a connecting rod, the moving end is sleeved on the cross rod in a sliding mode, the connecting rod is L-shaped, and the wind force sensors are all fixed on the connecting rod.
Optionally, a plurality of vertical connecting grooves are formed in the side wall of the building model, the cross section of each connecting groove is in a T shape, and the bottoms of the connecting grooves are closed; the windproof block is fixed with a connecting block matched with the connecting groove, and the length of the connecting block is equal to that of the connecting groove.
Optionally, the locking device comprises a plurality of clamping plates fixed at the bottom end of the detection rod, the clamping plates are distributed around the cross rod in a circular array, and the free ends of the clamping plates face the sliding seat; the clamping plate is an elastic curved plate, a rubber layer is fixed on the inner wall of the clamping plate and is in contact with the cross rod, the thickness of the clamping plate is gradually increased, and the clamping plate is in threaded connection with a positioning nut.
Optionally, the surface of the detection rod attached to the windproof block is smooth.
The working principle and the beneficial effects of the scheme are as follows:
1. through the slip of adjusting first slide, drive the wind pressure testing arrangement and slide, the rethread adjusts the measuring staff and slides on the horizontal pole, makes the measuring staff laminate the surface removal of windproof piece completely, lets the surface that the wind-force sensor on the measuring staff is close windproof piece more, and the wind pressure data of surveying is more accurate, can more audio-visual measurement streamline bionic structure surface's pressure situation, is convenient for carry out pneumatic optimization to biological bionic structure.
2. The fan can be installed on a second corresponding second sliding seat only by arranging the fan on the second sliding seat, so that the distance of the fan can be adjusted, and the control of wind power is achieved; meanwhile, the second sliding seat is slid, so that the angle between the fan and the building model can be adjusted, and the adjustment of the wind power and the angle is formed, and the wind pressure condition of the streamline surface of the wind-proof block under various conditions can be accurately completed, so that the pneumatic optimization of the biological bionic structure is facilitated.
3. In addition, when the fan operated, the recoil that the fan produced let the second slide support the ring channel, played fixed effect, need not to set up locking device in addition, made the regulation of second slide more convenient.
4. In the test process, the supporting rod of the transverse rod end sliding connection is attached to the bottom of the building model through the pressure sensor, the stress change of the bottom of the building model can be detected under the wind power state, the stress condition of the building structure in the bottom soil and other structures can be simulated, and the data of more comprehensive and more attached actual conditions can be provided for analyzing the influence of the streamline bionic structure on the pneumatic optimization of the building structure.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a longitudinal cross-sectional view of an embodiment of the present invention;
fig. 4 is an enlarged schematic view of fig. 3 at B.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the wind tunnel type wind tunnel comprises a wind tunnel cylinder body 1, a base plate 2, a building model 3, a wind-proof block 4, a cavity 5, a sliding groove 6, a first sliding seat 7, a bolt 8, a cross rod 9, a detection rod 10, a wind sensor 11, an annular groove 12, a second sliding seat 13, a fan 14, a support rod 15, a pressure sensor 16, a spring 17, a connecting block 18, a clamping plate 19, a positioning nut 20 and a moving end 21.
Examples
As shown in fig. 1, 2, 3 and 4:
the pneumatic optimization device of the structure based on bionics comprises a wind tunnel cylinder body 1, wherein a horizontally arranged substrate 2 is fixed inside the wind tunnel cylinder body 1, a cavity 5 is formed in the center of the substrate 2, a building model 3 can be disassembled in the center of the cavity 5, and windproof blocks 4 are connected to the periphery of the building model 3 through bolts; the outer surface of the windproof block 4 is streamline, and the bottom of the windproof block 4 is flush with the substrate 2; four grooves parallel to the side wall of the building model 3 are formed in the concave cavity, first sliding seats 7 are arranged in the grooves in a sliding mode, a wind pressure testing device is arranged on each first sliding seat 7, a bolt 8 is arranged on each first sliding seat 7, and a plurality of pin holes which are distributed at equal intervals are formed in each sliding groove 6; the wind pressure testing device comprises a cross rod 9 and a detecting rod 10, wherein the cross rod 9 is horizontally fixed on the first sliding seat 7; the detection rod 10 is vertically arranged, the bottom end of the detection rod 10 is connected to the cross rod 9 in a sliding mode, and a locking device is further arranged at the bottom end of the detection rod 10; the detection rod 10 is attached to the outer surface of the windproof block 4, and a plurality of wind sensors 11 which are uniformly distributed are arranged on the detection rod 10; the base plate 2 is also provided with a wind power generation device.
After the bolt 8 is taken down, the first sliding seat 7 is slid, so that the position corresponding to the wind pressure testing device is adjusted, the wind pressure testing device is enabled to be over against the position to be tested on the windproof block 4, and the bolt 8 is inserted to fix the first sliding seat 7; adjusting the detection rod 10, sliding the detection rod 10 on the cross rod 9, enabling the detection rod 10 to be attached to the surface of the windproof block 4, and locking by using the locking device. The wind generating device is then started to blow wind over the building model 3, and the wind sensor 11 on the surface of the detecting rod 10 is used for measurement. After the measurement is finished, the wind power generation device is closed, the bolt 8 is taken down again, the first sliding seat 7 is slid, the wind pressure testing device is enabled to be opposite to the next testing position, and the process is repeated until the test is finished; and then the windproof blocks 4 are disassembled, the windproof blocks 4 with other sizes are replaced, and the test is carried out again.
The sliding of the first sliding seat 7 is adjusted to drive the wind pressure testing device to slide, and then the detection rod 10 is adjusted to slide on the cross rod 9, so that the detection rod 10 is completely attached to the surface of the windproof block 4 to move, the wind sensor 11 on the detection rod 10 is closer to the surface of the windproof block 4, the measured wind pressure data is more accurate, and the pressure condition of the surface of the streamline bionic structure can be measured more visually; in addition, wind sensor 11 on the test rod 10 is with equidistant distribution, but the not wind pressure situation of co-altitude in the same vertical direction on the surface of wind-proof piece 4 of simultaneous measurement, for the experiment provides more accurate data to know the pneumatic distribution condition of bionic structure more comprehensively, be convenient for carry out pneumatic optimization to biological bionic structure.
Optionally, the wind generating device includes a fan 14 and a second sliding seat 13, a plurality of annular grooves 12 are provided on the substrate 2, the annular grooves 12 are concentric with the building model 3, the annular grooves 12 are distributed at equal intervals, the second sliding seat 13 is slidably connected in the annular grooves 12, the fan 14 is detachably connected to the second sliding seat 13, and the fan 14 faces the building model 3.
The fan 14 is installed on the corresponding second sliding base 13 through bolt connection, so that the function of adjusting the distance between the fan 14 and the building model 3 is achieved, and the control of wind power is achieved; and then the second sliding seat 13 is pushed, so that the angle between the fan 14 and the building model 3 is adjusted, the wind direction is adjusted, and the strength and the angle of wind generated by the fan 14 are in a state required by experimental tests.
Through a plurality of concentric annular grooves 12, the second sliding seats 13 are arranged in the annular grooves 12, and the fan 14 can be adjusted only by installing the fan 14 on the corresponding second sliding seats 13, so that the control of wind power is achieved; meanwhile, the second sliding seat 13 is slid to adjust the angle between the fan 14 and the building model 3, so that the wind power and the angle can be adjusted, the wind pressure condition of the windproof block 4 under various conditions can be accurately achieved, the pneumatic distribution condition of the bionic structure can be comprehensively known, and the pneumatic optimization of the biological bionic structure can be conveniently carried out.
In addition, when the fan 14 operates, the recoil generated by the fan 14 enables the second sliding seat 13 to abut against the annular groove 12, so that the fixing effect is achieved, a locking device is not required to be additionally arranged, and the second sliding seat 13 can be adjusted more conveniently.
Optionally, the cross bars 9 are all immersed in the concave cavities, connecting holes are formed in the end portions of the cross bars 9, supporting rods 15 are connected in the connecting holes in a sliding mode, pressure sensors 16 are fixed to the end portions of the supporting rods 15, the pressure sensors 16 are attached to the side faces of the building model 3, and springs 17 are fixed between the supporting rods 15 and the cross bars 9; the detection rod 10 comprises a moving end 21 and a connecting rod, the moving end 21 is sleeved on the cross rod 9 in a sliding mode, the connecting rod is L-shaped, and the wind sensor 11 is fixed on the connecting rod.
In the test process, the supporting rod 15 of the end part sliding connection of the cross rod 9 is attached to the bottom of the building model 3 through the pressure sensor 16, so that the stress change of the bottom of the building model 3 under the wind power state can be detected, the bottom stress condition of the building structure in the soil and other structures can be simulated, and more comprehensive and more attached actual data can be provided for analyzing the surface pneumatic condition of the bionic structure.
Optionally, a plurality of vertical connecting grooves are formed in the side wall of the building model 3, the cross section of each connecting groove is in a T shape, and the bottom of each connecting groove is closed; and a connecting block 18 matched with the connecting groove is fixed on the windproof block 4, and the length of the connecting block 18 is equal to that of the connecting groove.
Through the cooperation between setting up connecting block 18 and the spread groove, be in detachable state between the piece 4 of preventing wind and the construction model 3, be convenient for change the piece 4 of preventing wind of not unidimensional.
Optionally, the locking device comprises a plurality of clamping plates 19 fixed at the bottom end of the detection rod 10, the clamping plates 19 are distributed around the cross rod 9 in a circular array, and the free ends of the clamping plates 19 face the sliding seat; the clamping plate 19 is an elastic curved plate, a rubber layer fixed on the inner wall of the clamping plate 19 is in contact with the cross rod 9, the thickness of the clamping plate 19 gradually increases, and a positioning nut 20 is in threaded connection with the clamping plate 19.
After the detection rod 10 stops moving, the positioning nut 20 is rotated to enable the positioning nut 20 to move towards the moving end 21, the thickness of the clamping plate 19 is gradually increased, in the process that the positioning nut 20 moves towards the moving end 21, the positioning nut 20 continuously extrudes the clamping plate 19 to enable the friction force between the clamping plate 19 and the cross rod 9 to be larger and larger, when the positioning nut 20 moves to a certain position, the friction force between the clamping plate 19 and the cross rod 9 is increased to a certain degree, the clamping plate 19 is fixed on the cross rod 9 to fix the moving end 21, a rubber layer fixed on the clamping plate 19 is in contact with the cross rod 9 to increase the friction between the clamping plate 19 and the cross rod 9, and the stability between the clamping plate 19 and the cross rod 9 is enhanced; when the detection rod 10 needs to be moved, only the positioning nut 20 needs to be rotated reversely, the fixing mode of the whole detection rod 10 is simple and quick, and the processing efficiency can be effectively improved.
Optionally, the surface of the test rod 10 that abuts the wind-proof block 4 is smooth.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.
Claims (6)
1. Pneumatic optimization device of structure based on it is bionical, its characterized in that: the wind tunnel comprises a wind tunnel cylinder body, wherein a horizontally arranged base plate is fixed in the wind tunnel cylinder body, a cavity is formed in the center of the base plate, a building model can be disassembled in the center of the cavity, and wind-proof blocks are bolted on the periphery of the building model; the outer surface of the windproof block is streamline, and the bottom of the windproof block is flush with the substrate; four grooves parallel to the side wall of the building model are formed in the concave cavity, first sliding seats are arranged in the grooves in a sliding mode, a wind pressure testing device is arranged on each first sliding seat, a bolt is arranged on each first sliding seat, and a plurality of pin holes distributed at equal intervals are formed in each sliding groove; the wind pressure testing device comprises a cross rod and a detecting rod, and the cross rod is horizontally fixed on the first sliding seat; the detection rod is vertically arranged, the bottom end of the detection rod is connected to the cross rod in a sliding mode, and a locking device is further arranged at the bottom end of the detection rod; the detection rod is attached to the outer surface of the windproof block, and a plurality of uniformly distributed wind sensors are arranged on the detection rod; and the base plate is also provided with a wind power generation device.
2. The pneumatic optimization device for structure based on bionics of claim 1, characterized in that: wind power generation set includes fan and second slide, a plurality of ring channels have been seted up on the base plate, the ring channel all with the building model centre of a circle, and the ring channel is equidistant distribution, sliding connection has the second slide in the ring channel, can dismantle on the second slide and be connected with the fan, the fan is towards the building model.
3. The pneumatic optimization device for structure based on bionics of claim 2, characterized in that: the cross rods are all arranged in the concave cavities, connecting holes are formed in the end portions of the cross rods, supporting rods are connected in the connecting holes in a sliding mode, pressure sensors are fixed to the end portions of the supporting rods and attached to the side faces of the building model, and springs are fixed between the supporting rods and the cross rods; the detection rod comprises a moving end and a connecting rod, the moving end is sleeved on the cross rod in a sliding mode, the connecting rod is L-shaped, and the wind force sensors are all fixed on the connecting rod.
4. The pneumatic optimization device for structure based on bionics of claim 3, characterized in that: the side wall of the building model is provided with a plurality of vertical connecting grooves, the cross sections of the connecting grooves are T-shaped, and the bottoms of the connecting grooves are closed; the windproof block is fixed with a connecting block matched with the connecting groove, and the length of the connecting block is equal to that of the connecting groove.
5. The pneumatic optimization device for structure based on bionics of claim 4, characterized in that: the locking device comprises a plurality of clamping plates fixed at the bottom end of the detection rod, the clamping plates are distributed around the cross rod in a circular array, and the free ends of the clamping plates face the sliding seat; the clamping plate is an elastic curved plate, a rubber layer is fixed on the inner wall of the clamping plate and is in contact with the cross rod, the thickness of the clamping plate is gradually increased, and the clamping plate is in threaded connection with a positioning nut.
6. The pneumatic optimization device for structure based on bionics of claim 5, characterized in that: the surface of the detection rod attached to the windproof block is smooth.
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