Adjustable flange plate suspension system component suitable for wind tunnel test and use method of adjustable flange plate suspension system component

Abstract

The invention relates to the technical field of structural wind engineering, in particular to an adjustable flange plate suspension system component suitable for a wind tunnel test and a using method. The device is arranged on a wind tunnel test device and comprises a bearing base plate, a lower sliding rail component is arranged on the upper surface of the bearing base plate, an upper sliding rail component is arranged on the upper surface of the lower sliding rail component, and the upper sliding rail component and the lower sliding rail component are connected with the bearing base plate and are arranged in an X shape in an up-down staggered and overlapped mode. The upper surface of the upper sliding rail component and the upper surface of the lower sliding rail component are each provided with two sliding components in a sliding mode, the four sliding components are the same in structure and each provided with at least one rope connecting hole, and the two sliding components located on the upper sliding rail component and the two sliding components located on the lower sliding rail component are arranged in an axial symmetry mode. The device is simple in structure, is convenient to operate, facilitates the development of wind tunnel tests of different connection mode groups, can research the frequency influence of a plurality of suspension modes on a structure or a component under the wind load effect, and is of great significance to the improvement of the wind resistance of the structure.

Description

Technical Field

[0001] This invention relates to the field of structural wind engineering technology, and in particular to an adjustable flange suspension system component and its usage method suitable for wind tunnel testing. Background Technology

[0002] To determine the vibration characteristics and properties of civil engineering structural members under wind load, wind tunnel tests are often used to test the members under wind load. When testing members under wind load, the members are usually connected by ropes, and then the ropes are fixed to flanges. However, the angle of the rope connection to the member and the angle between the ropes have a significant impact on the vibration response of the member under wind load. Traditional flanges can only be used for wind tunnel tests, which not only fixes the structural member individually, but also prevents arbitrary changes to the connection angle between the member and the rope and the angle between the ropes, thus limiting the wind load test.

[0003] Therefore, there is an urgent need for an adjustable flange suspension system component and its usage method suitable for wind tunnel testing to solve the above-mentioned technical problems. Summary of the Invention

[0004] The present invention aims to solve the above problems and thus provide an adjustable flange suspension system component and its usage method suitable for wind tunnel testing. It is not only simple in structure and convenient in operation, but also conducive to carrying out wind tunnel tests with different connection methods. It can study the influence of various suspension methods on the frequency of structures or components under wind loads, which is of great significance for improving the wind resistance of structures.

[0005] The technical solution adopted by the present invention to solve the aforementioned problem is as follows: An adjustable flange suspension system component suitable for wind tunnel testing is installed on a wind tunnel testing device. It includes a support base, a lower sliding rail component on the upper surface of the support base, and an upper sliding rail component on the upper surface of the lower sliding rail component. Both the upper and lower sliding rail components are connected to the support base. The upper and lower sliding rail components are arranged in an X-shaped, staggered, overlapping configuration. Two sliding members are slidably mounted on the upper surfaces of both the upper and lower sliding rail components. All four sliding members have identical structures and at least one rope connection hole. The two sliding members on the upper and lower sliding rail components are arranged axially symmetrically. Each sliding member includes a cuboid-shaped component body. The component body is horizontally positioned and has an extension connecting section at the lower part of one end face. The extension connecting section is integrally formed with the component body and has at least one track bolt hole that extends through the extension connecting section from bottom to top. A connecting bolt is threaded into the track bolt hole. The sliding component is connected to the upper slide rail component or the lower slide rail component via the connecting bolt. At least one connecting slide rail is provided on the lower bottom surface of the component body and is slidably mounted on the upper slide rail component or the lower slide rail component. The sliding component is slidably connected to the upper slide rail component or the lower slide rail component via the connecting slide rail. A rope connection hole is located on the upper part of the other end face of the component body away from the extension connecting section.

[0006] Furthermore, the supporting base is in the shape of a circular disc, with a central bolt hole at the center of the supporting base that connects to the upper slide rail component and the lower slide rail component, and two inferior arc grooves on the upper surface of the supporting base that connect to the upper slide rail component and the lower slide rail component.

[0007] Furthermore, the two minor arc grooves have the same arc length and are both concentric with the supporting base. The two minor arc grooves are set in a mirror symmetrical arrangement with the center of the supporting base as the center.

[0008] Furthermore, the lower slide rail component is in the shape of a long strip plate, and the lower slide rail component is adapted to the supporting chassis. A lower center bolt hole is provided in the middle of the lower slide rail component, and the lower center bolt hole is connected to the round center bolt hole. A recessed lower misaligned connecting part is provided in the middle of the upper surface of the lower slide rail component, and long strip grooves that are slidably connected to the connecting slide rail are provided on both sides of the lower misaligned connecting part.

[0009] Furthermore, the upper slide rail component is in the shape of a long strip plate, and the upper slide rail component is adapted to the lower slide rail component and the supporting chassis. An upper central bolt hole is provided in the middle of the upper slide rail component. The upper central bolt hole, the lower central bolt hole and the circular central bolt hole are connected and are connected together by a fastening bolt. The fastening bolt connects the upper slide rail component, the lower slide rail component and the supporting chassis together. An upper recessed upper misaligned connecting part is provided in the middle of the lower surface of the upper slide rail component. The upper misaligned connecting part and the lower misaligned connecting part are overlapped vertically. An elongated sliding groove is provided on the upper surface of the upper slide rail component to slide in connection with the connecting slide rail.

[0010] Furthermore, the elongated slides are all arranged along the length of the upper slide rail component and the lower slide rail component. The number of elongated slides is consistent with the number of connecting slide rails. Each elongated slide has an internal thread on its inner wall, which is arranged along the length of the elongated slide. Each connecting slide rail has an external thread that matches the internal thread. On the lower slide rail component, the elongated slides located on both sides of the lower center bolt hole are arranged in a mirror image symmetrical with the lower center bolt hole as the center.

[0011] Furthermore, both ends of the upper slide rail component and the lower slide rail component are provided with through-hole fixing bolt holes, and limit bolts connected to the inferior arc groove are threaded into the fixing bolt holes.

[0012] Furthermore, a rope is threaded onto the rope connection hole, and the other end of the rope is fixed to the wind tunnel test device.

[0013] A method for using an adjustable flange suspension system component suitable for wind tunnel testing includes the following steps: S1. Install the sliding component on the upper slide rail component and the lower slide rail component respectively, and then adapt the upper slide rail component and the lower slide rail component to the supporting chassis, so that the upper slide rail component and the lower slide rail component are X-shaped and staggered vertically. S2. When conducting wind tunnel tests, configure the number and specifications of ropes according to requirements, connect one end of each rope to the corresponding rope connection hole, and fix the other end of each rope to the wind tunnel test device. S3. During wind tunnel testing, loosen the fastening bolts to adjust the angle between the upper and lower slide rail components, thereby changing the angle between the ropes. Once the angle between the ropes is adjusted to the correct position, tighten the fastening bolts. S4. During wind tunnel testing, loosen the connecting bolts to adjust the position of the sliding component on the upper and lower slide rail components, thereby changing the suspension height of the rope and the connection angle between the rope and the adjustable flange suspension system component. Once the suspension height of the rope and the connection angle between the rope and the adjustable flange suspension system component are adjusted to the correct position, tighten the connecting bolts.

[0014] The present invention, which adopts the above technical solution, has the following prominent features compared with the prior art: This invention includes a supporting base, an upper sliding rail component, a lower sliding rail component, and four sliding components. The supporting base connects the upper and lower sliding rail components. The angle between the ropes can be changed by adjusting the upper and lower sliding rail components. The four sliding components are correspondingly slidably mounted on the upper and lower sliding rail components. The sliding components not only connect the ropes but also change the connection angle between the ropes and the adjustable flange suspension system components by moving them on the upper or lower sliding rail components. This invention is not only simple in structure and easy to operate, but also facilitates wind tunnel tests with different connection methods, thus increasing the design diversity and research breadth of suspension wind tunnel tests. It allows for the study of the frequency effects of various suspension methods on structures or components under wind loads, which is of great significance for improving the wind resistance of structures. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the connection structure between the adjustable flange suspension system components and the wind tunnel testing device of the present invention; Figure 2 This is a schematic diagram of the elevation structure of the adjustable flange suspension system component of the present invention; Figure 3 This is a schematic diagram of the structure supporting the chassis of the present invention; Figure 4 This is a structural schematic diagram of the lower rail component of the present invention; Figure 5 This is a structural schematic diagram of the upper slide rail component of the present invention; Figure 6 This is a schematic diagram of the main structure of the sliding component of the present invention; Figure 7 This is a top view of the sliding component of the present invention. Figure 8 This is a side view of the sliding component of the present invention. In the diagram: 1. Wind tunnel test apparatus; 2. Supporting chassis; 3. Lower slide rail component; 4. Upper slide rail component; 5. Sliding component; 6. Rope connection hole; 7. Component body; 8. Extension connecting section; 9. Track bolt hole; 10. Connecting slide rail; 11. Center bolt hole; 12. Slightly curved groove; 13. Lower center bolt hole; 14. Lower misaligned connection part; 15. Long strip groove; 16. Upper center bolt hole; 17. Upper misaligned connection part; 18. Fixing bolt hole; 19. Rope; 20. Adjustable flange suspension system component. Detailed Implementation

[0016] The following description of the embodiments will help the public better understand the present invention. However, the specific embodiments provided by the applicant should not and should not be regarded as a limitation on the technical solution of the present invention. Any changes to the definition of components or technical features and / or formal but not substantive changes to the overall structure should be regarded as the scope of protection defined by the technical solution of the present invention.

[0017] See Figures 1 to 8 As shown, the technical solution of the present invention is as follows: An adjustable flange suspension system component suitable for wind tunnel testing is installed on a wind tunnel testing device. It includes a support base, a lower slide rail component on the upper surface of the support base, and an upper slide rail component on the upper surface of the lower slide rail component. Both the upper and lower slide rail components are connected to the support base. The upper and lower slide rail components are arranged in an X-shape with staggered vertical alignment. Two sliding components are slidably installed on the upper surfaces of both the upper and lower slide rail components. The four sliding components have the same structure and two rope connection holes are provided on each of the four sliding components. The two sliding components located on the upper and lower slide rail components are arranged axially symmetrically. A rope is threaded into the rope connection hole, and the other end of the rope is fixed to the wind tunnel testing device. The supporting base is in the shape of a circular disc. A central bolt hole is provided at the center of the supporting base to connect with the upper slide rail component and the lower slide rail component. Two minor arc grooves are provided on the upper surface of the supporting base. Both minor arc grooves are connected to the upper slide rail component and the lower slide rail component. The arc lengths of the two minor arc grooves are the same and both are concentric with the supporting base. The two minor arc grooves are mirror-symmetrically arranged with the center of the supporting base as the center. The lower slide rail component is in the shape of a long strip plate and is adapted to the supporting chassis. The length of the lower slide rail component is consistent with the diameter of the supporting chassis. A lower center bolt hole is opened in the middle of the lower slide rail component, which is connected to the central bolt hole. A recessed lower misaligned connecting part is machined in the middle of the upper surface of the lower slide rail component. Three long slide grooves are provided on both sides of the lower misaligned connecting part. The three long slide grooves are arranged sequentially and spaced apart along the width direction of the lower slide rail component. The three connecting slide rails are slidably connected to the three long slide grooves. The upper slide rail component is in the shape of a long strip plate. The upper slide rail component is adapted to the lower slide rail component and the supporting base. The length of the upper slide rail component is consistent with the diameter of the supporting base. An upper central bolt hole is opened in the middle of the upper slide rail component. The upper central bolt hole, the lower central bolt hole and the circular central bolt hole are connected and connected to a fastening bolt. The fastening bolt connects the upper slide rail component, the lower slide rail component and the supporting base together. A concave upper misaligned connecting part is processed in the middle of the lower surface of the upper slide rail component. The upper misaligned connecting part and the lower misaligned connecting part are stacked and misaligned. Three long slide grooves are provided on the upper surface of the upper slide rail component. The three long slide grooves are arranged sequentially and spaced apart along the width direction of the upper slide rail component. The three connecting slide rails are slidably connected to the three long slide grooves. The elongated slide grooves are all set along the length of the upper slide rail component and the lower slide rail component. The number of elongated slide grooves is consistent with the number of connecting slide rails. Internal threads are machined on the inner wall of each elongated slide groove, and the internal threads are set along the length of the elongated slide groove. External threads are machined on each connecting slide rail. The internal threads and external threads are matched and connected together. The elongated slide grooves on both sides of the lower center bolt hole on the lower slide rail component are mirror-symmetrically arranged with the lower center bolt hole as the center. At both ends of the upper slide rail component and the lower slide rail component, there are vertically penetrating fixing bolt holes. Limiting bolts connected to the inferior arc groove are threaded into the fixing bolt holes. The sliding component includes a rectangular parallelepiped body, which is horizontally positioned and has an extension connecting section at the lower part of one end face. The extension connecting section is integrally formed with the component body and has three track bolt holes, all of which penetrate the extension connecting section from bottom to top. Connecting bolts are threaded into the track bolt holes. The sliding component is connected to the upper slide rail component or the lower slide rail component via the connecting bolts. Three connecting slide rails are provided on the lower bottom surface of the component body and are slidably mounted on the upper slide rail component or the lower slide rail component. The sliding component is slidably connected to the upper slide rail component or the lower slide rail component via the three connecting slide rails. Two rope connection holes are located on the upper part of the component body at the other end face away from the extension connecting section.

[0018] A method for using an adjustable flange suspension system component suitable for wind tunnel testing includes the following steps: S1. Install the sliding component on the upper slide rail component and the lower slide rail component respectively, and then adapt the upper slide rail component and the lower slide rail component to the supporting chassis, so that the upper slide rail component and the lower slide rail component are X-shaped and staggered vertically. S2. When conducting wind tunnel tests, configure the number and specifications of ropes according to requirements, connect one end of each rope to the corresponding rope connection hole, and fix the other end of each rope to the wind tunnel test device. S3. During wind tunnel testing, loosen the fastening bolts to adjust the angle between the upper and lower slide rail components, thereby changing the angle between the ropes. Once the angle between the ropes is adjusted to the correct position, tighten the fastening bolts. S4. During wind tunnel testing, loosen the connecting bolts to adjust the position of the sliding component on the upper and lower slide rail components, thereby changing the suspension height of the rope and the connection angle between the rope and the adjustable flange suspension system component. Once the suspension height of the rope and the connection angle between the rope and the adjustable flange suspension system component are adjusted to the correct position, tighten the connecting bolts.

[0019] This invention includes a supporting base, an upper sliding rail component, a lower sliding rail component, and four sliding components. The supporting base connects the upper and lower sliding rail components. The angle between the ropes can be changed by adjusting the upper and lower sliding rail components. The four sliding components are correspondingly slidably mounted on the upper and lower sliding rail components. The sliding components not only connect the ropes but also change the connection angle between the ropes and the adjustable flange suspension system components by moving them on the upper or lower sliding rail components. This invention is not only simple in structure and easy to operate, but also facilitates wind tunnel tests with different connection methods, thus increasing the design diversity and research breadth of suspension wind tunnel tests. It allows for the study of the frequency effects of various suspension methods on structures or components under wind loads, which is of great significance for improving the wind resistance of structures.

[0020] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. An adjustable flange suspension system component suitable for wind tunnel testing, mounted on a wind tunnel testing apparatus, characterized in that: The system includes a supporting chassis, a lower sliding rail component on the upper surface of the supporting chassis, and an upper sliding rail component on the upper surface of the lower sliding rail component. Both the upper and lower sliding rail components are connected to the supporting chassis. The upper and lower sliding rail components are arranged in an X-shape with staggered vertical alignment. Two sliding members are slidably installed on the upper surfaces of both the upper and lower sliding rail components. The four sliding members have identical structures and each has at least one rope connection hole. The two sliding members on the upper and lower sliding rail components are arranged axially symmetrically. Each sliding member includes a rectangular parallelepiped body, which is horizontally positioned and has one of its components... An extension connecting section is provided at the lower part of the end face. The extension connecting section is integrally formed with the component body. At least one track bolt hole is provided on the extension connecting section, wherein the track bolt hole extends through the extension connecting section from bottom to top. A connecting bolt is threaded onto the track bolt hole. The sliding component is connected to the upper slide rail component or the lower slide rail component through the connecting bolt. At least one connecting slide rail is provided on the bottom surface of the component body. The connecting slide rail is slidably installed on the upper slide rail component or the lower slide rail component. The sliding component is slidably connected to the upper slide rail component or the lower slide rail component through the connecting slide rail. The rope connection hole is provided at the upper part of the other end face of the component body away from the extension connecting section.

2. The adjustable flange suspension system component for wind tunnel testing according to claim 1, characterized in that: The supporting base is in the shape of a circular disc. A central bolt hole is provided at the center of the supporting base to connect with the upper slide rail component and the lower slide rail component. Two inferior arc grooves are provided on the upper surface of the supporting base to connect with the upper slide rail component and the lower slide rail component.

3. The adjustable flange suspension system component for wind tunnel testing according to claim 2, characterized in that: The two minor arc grooves have the same arc length and are both concentric with the supporting base. The two minor arc grooves are mirror-symmetrically arranged with the center of the supporting base as the center.

4. The adjustable flange suspension system component for wind tunnel testing according to claim 3, characterized in that: The lower slide rail component is in the shape of a long strip plate and is adapted to the supporting chassis. A lower center bolt hole is provided in the middle of the lower slide rail component, which is connected to the center bolt hole. A recessed lower misaligned connecting part is provided in the middle of the upper surface of the lower slide rail component. Long strip grooves that slide and connect with the connecting slide rail are provided on both sides of the lower misaligned connecting part.

5. The adjustable flange suspension system component for wind tunnel testing according to claim 4, characterized in that: The upper slide rail component is in the shape of a long strip plate. The upper slide rail component is adapted to the lower slide rail component and the supporting chassis. An upper central bolt hole is provided in the middle of the upper slide rail component. The upper central bolt hole, the lower central bolt hole and the circular central bolt hole are connected and are connected to a fastening bolt. The fastening bolt connects the upper slide rail component, the lower slide rail component and the supporting chassis together. An upper recessed upper misaligned connecting part is provided in the middle of the lower surface of the upper slide rail component. The upper misaligned connecting part and the lower misaligned connecting part are overlapped vertically. An elongated sliding groove is provided on the upper surface of the upper slide rail component to slide in connection with the connecting slide rail.

6. The adjustable flange suspension system component for wind tunnel testing according to claim 5, characterized in that: The long slide grooves are all set along the length direction of the upper slide rail component and the lower slide rail component. The number of long slide grooves is consistent with the number of connecting slide rails. Each long slide groove has an internal thread on its inner wall. The internal thread is set along the length direction of the long slide groove. Each connecting slide rail has an external thread that matches the internal thread. On the lower slide rail component, the long slide grooves located on both sides of the lower center bolt hole are set in a mirror image symmetrical with the lower center bolt hole as the center.

7. The adjustable flange suspension system component for wind tunnel testing according to claim 6, characterized in that: Both ends of the upper slide rail component and the lower slide rail component are provided with through-hole fixing bolt holes, and limit bolts connected to the inferior arc groove are threaded into the fixing bolt holes.

8. The adjustable flange suspension system component for wind tunnel testing according to claim 7, characterized in that: A rope is threaded onto the rope connection hole, and the other end of the rope is fixed to the wind tunnel test device.

9. A method of using an adjustable flange suspension system component suitable for wind tunnel testing according to any one of claims 1-8, characterized in that: Includes the following steps: S1. Install the sliding component on the upper slide rail component and the lower slide rail component respectively, and then adapt the upper slide rail component and the lower slide rail component to the supporting chassis, so that the upper slide rail component and the lower slide rail component are X-shaped and staggered vertically. S2. When conducting wind tunnel tests, configure the number and specifications of ropes according to requirements, connect one end of each rope to the corresponding rope connection hole, and fix the other end of each rope to the wind tunnel test device. S3. During wind tunnel testing, loosen the fastening bolts to adjust the angle between the upper and lower slide rail components, thereby changing the angle between the ropes. Once the angle between the ropes is adjusted to the correct position, tighten the fastening bolts. S4. During wind tunnel testing, loosen the connecting bolts to adjust the position of the sliding component on the upper and lower slide rail components, thereby changing the suspension height of the rope and the connection angle between the rope and the adjustable flange suspension system component. Once the suspension height of the rope and the connection angle between the rope and the adjustable flange suspension system component are adjusted to the correct position, tighten the connecting bolts.

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