Bridge wind vibration active control flexible variable wing plate based on multiple telescopic rods and membrane structure

By adopting flexible variable wing plates with multi-sleeved rods and membrane structures on the bridge, the wing plate shape changes are realized to control wind loads, which solves the problem of insufficient wind resistance of the bridge under different wind speed states, and significantly improves the suppression effect of wind-induced vibration.

CN222744766UActive Publication Date: 2025-04-11DALIAN JIAOTONG UNIVERSITY
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Patent Information

Application Number
CN202421231080.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-31
Publication Date
2025-04-11
Estimated Expiration
2034-05-31

AI Technical Summary

Technical Problem

The existing bridge structures have insufficient wind resistance under different wind speed states, especially the problems of vortex and flutter are difficult to effectively solve, and traditional passive aerodynamic measures cannot take into account multiple adverse wind characteristics and vibration types.

Method used

The bridge wind vibration based on multi-strained rod and membrane structure is actively controlled by the flexible variable wing plate. Through the coordinated action between the rod-line-membrane structure, the morphology of the wing plate of the flexible membrane structure is realized, thereby flexibly controlling the wind load and suppressing the bridge wind-induced vibration.

Benefits of technology

The wind resistance of the bridge under different wind speed states is improved, the ability to suppress wind-induced vibration is enhanced, the flexibility and freedom are greater, and the structure is light and easy to disassemble, reducing the inertia force of vibration control.

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Abstract

The utility model provides a bridge wind vibration active control flexible variable wing plate based on multiple telescopic rods and a membrane structure. The bridge wind vibration active control flexible variable wing plate comprises a supporting rod, a flexible membrane structure wing plate and a torsion device. The torsion device comprises a control rod, a fixed rod and a telescopic rod; the fixed rod and the telescopic rod are rotatably arranged on the control rod in a sleeving manner; the fixed rod and the telescopic rod located at one end of the flexible membrane structure wing plate are in one-to-one correspondence with the fixed rod and the telescopic rod located at the other end of the flexible membrane structure wing plate, the tops of the two fixed rods are connected through a rolling rod, and the tops of the two telescopic rods are connected through a clamping rod; the edges of the two sides of the flexible film structure wing plate are installed on the rolling rods respectively. And the flexible membrane structure wing plate is clamped between the upper part and the lower part of the clamping rod. According to the technical scheme, the change of different forms of the wing plate of the flexible membrane structure can be realized, so that the wind load on the surface of the wing plate of the membrane structure is flexibly controlled, and the wind-induced vibration of a bridge is inhibited.
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Description

Technical Field

[0001] The utility model relates to the technical field of wind resistance of bridge structures, and in particular to a flexible variable wing plate for actively controlling wind vibration of bridges based on multiple telescopic rods and a membrane structure. Background Art

[0002] A large number of long-span cable-type bridges have been built or are being planned at home and abroad. In cable-type long-span bridges, the vortex vibration and flutter problem of the bridge has become one of the main control factors in bridge design.

[0003] As the span of bridges increases, the improvement effect that can be provided by passive aerodynamic measures (such as changing the aerodynamic shape, adding flow suppression plates, etc.) is approaching its limit, and most passive aerodynamic measures cannot take into account a variety of unfavorable wind characteristics, vibration types, etc.

[0004] In order to improve the wind resistance of bridge structures under different wind speed conditions, such as increasing the critical flutter wind speed and reducing the vortex amplitude, active control is a more effective way. The active control method is to optimize the control system algorithm based on various real-time vibration parameters collected by the data acquisition system, and transmit the control information to the auxiliary components (such as wing panels) to achieve real-time position and speed control in the same wind field, and reversely suppress the wind-induced vibration of the structure through the wind load on the wing panels. Active control can produce control effects for various cross-sectional forms, incoming wind field characteristics, and wind-induced vibrations of various vibration modes, and has better universality than passive control measures.

[0005] Currently, in terms of suppressing wind-induced vibrations of bridges, the material of active control wing panels is mainly rigid materials (such as steel). The wind load is changed by rotating a single or multiple wing panels on both sides of the bridge. The control effect is relatively simple, the weight is large, and it is not easy to install, and it has a large inertia force. Utility Model Content

[0006] In view of the technical problems existing in the above-mentioned rigid actively controlled wing panels, a flexible variable wing panel for active control of wind vibration of bridge based on multi-telescopic rods and membrane structures is provided. Through the synergistic effect of the rod-wire-membrane independent structures, the changes in different forms of the flexible membrane structure wing panel are realized, thereby flexibly controlling the wind load on the surface of the membrane structure wing panel to cope with the vibration of the bridge under different wind speed conditions and suppress the wind-induced vibration of the bridge.

[0007] The technical means adopted by the utility model are as follows:

[0008] A flexible variable wing plate for active wind vibration control of a bridge based on a multi-telescopic rod and a membrane structure, comprising four support rods arranged at equal intervals, a flexible membrane structure wing plate and a torsion device; the support rods are connected to each other by connecting rods installed on the top, the tops of the support rods at both ends are respectively provided with the torsion devices, and the flexible membrane structure wing plate is located between the two torsion devices;

[0009] The torsion device comprises a control rod, a fixed rod and a telescopic rod; the fixed rod is a rod with a fixed length, and the telescopic rod is a telescopic rod; the control rod is installed on the top of the support rod; the bottom of the fixed rod and the telescopic rod are both provided with a sleeve structure, and the fixed rod and the telescopic rod are rotatably sleeved on the control rod through the sleeve structure, and the control rod is installed with two fixed rods and at least two telescopic rods located between the two fixed rods;

[0010] The fixed rod and the telescopic rod in the torsion device at one end of the flexible membrane structure wing plate correspond to the fixed rod and the telescopic rod in the torsion device at the other end respectively, and the corresponding two fixed rod tops are connected by a rolling rod, and the corresponding two telescopic rod tops are connected by a clamping rod; the rolling rod is rotatably connected to the fixed rods at both ends, and the clamping rod is rotatably connected to the telescopic rods at both ends; the two side edges of the flexible membrane structure wing plate are respectively installed on the rolling rods on both sides, and the rolling rods are used to roll up or release the flexible membrane structure wing plate; the clamping rod includes two detachably connected upper and lower parts, and the middle part of the flexible membrane structure wing plate can be clamped between the upper and lower parts of the clamping rod.

[0011] Furthermore, the control rod is installed on the top of the support rod through a control rod seat, the bottom of the control rod seat is fixedly installed on the top of the support rod, and the two ends of the control rod are respectively installed on the limiting protrusions at both ends of the control rod seat; the end of the connecting rod is fixedly connected to the control rod seat.

[0012] Furthermore, the sleeve structure is rotatably mounted on the control rod through a bearing, and the sleeve structure at the bottom of each fixed rod and the telescopic rod is provided with a corresponding driving motor, and the driving motor can drive the sleeve structure to drive the corresponding fixed rod or the telescopic rod to rotate, thereby adjusting the angle between the fixed rod and the telescopic rod and the adjacent telescopic rods.

[0013] Furthermore, the rolling rod includes a rolling tube and a tubular motor for controlling the rotation of the rolling tube, the edge of the flexible membrane structure wing panel is fixedly installed on the rolling tube, and the tubular motor can drive the rolling tube to rotate to achieve the winding or release of the flexible membrane structure wing panel.

[0014] Furthermore, the material of the flexible membrane structure wing plate is but not limited to PTFE membrane.

[0015] Furthermore, by adjusting the angle between the fixed rod and the telescopic rod and the adjacent telescopic rods, adjusting the telescopic length of the telescopic rod, rolling up or releasing the flexible membrane structure wing panel by the rolling rod, and clamping and restraining the flexible membrane structure wing panel by the clamping rod, the shape of the flexible membrane structure wing panel can be changed as needed.

[0016] Furthermore, it also includes a controller, and the driving motor, the tubular motor and the telescopic rod are electrically connected to the controller respectively. The controller can control the operation of the driving motor, the tubular motor and the telescopic rod respectively as needed, thereby changing the shape of the flexible membrane structure wing plate.

[0017] Furthermore, the cross sections of the control rod, the fixing rod, the telescopic rod, the rolling rod and the clamping rod are all circular.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] 1. The flexible variable wing plate for active wind vibration control of bridges based on multi-telescopic rods and membrane structures provided by the utility model can flexibly change the cross-sectional shape of the wing plate in the longitudinal direction. At the same time, due to its light weight, easy disassembly, and small inertia force of vibration control, it is conducive to control. The actuator is inexpensive, making the structure lighter. The variability of the cross-sectional geometry can be achieved through the independent interaction between the rod-wire-membrane structure, thereby improving the flexibility of the wing plate and increasing the degree of freedom of the wing plate in the state of wing plate translation to cope with wind-induced vibrations in different situations.

[0020] 2. Compared with the geometric optimization of the bridge interface in the design stage, or the passive control of the wind-induced vibration of the bridge by changing the damping of the bridge by setting water horses on the built bridge, the flexible variable wing plate for active control of bridge wind vibration based on multi-telescopic rods and membrane structure provided by the utility model is an active control measure. It can adjust the geometric shape and rotation angle of the membrane structure wing plate according to the characteristics of the incoming wind and the vibration state of the bridge to change the wind load on the flexible wing plate, and suppress the wind-induced vibration of the bridge by the wind load on the wing plate, so as to improve the wind resistance of the bridge; it can be applied to most cases of different wind-induced vibration states of bridges, so as to better linearly fit the vibration shape curve of the bridge, and has the advantages of easy disassembly, conducive to later maintenance, repair and replacement, low cost, and many optimization parameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 This is a schematic diagram of the structure of the active control flexible variable wing panel of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the active control flexible variable wing panel of the utility model;

[0024] Figure 3 This is a schematic diagram of the application state of the active control flexible variable wing panel of the utility model on the bridge;

[0025] Figure 4 (a)-(d) are schematic diagrams of different shapes of the flexible membrane structure wing panels of the utility model;

[0026] Figure 5 This is a schematic diagram of the shape change of the actively controlled flexible variable wing panel according to the utility model;

[0027] Figure 6 (a)-(d) are schematic diagrams of eddy currents on the lower surface of the flexible membrane structure wing plates of different shapes described in the utility model;

[0028] Figure 7 (a) is a schematic diagram of a rigid wing plate suppressing bridge vibration, and (b) is a diagram showing the effect of the active control of the active control flexible variable wing plate described in the utility model.

[0029] In the figure: 1. support rod; 2. sleeve structure; 3. fixed rod; 4. telescopic rod; 5. flexible membrane structure wing plate; 6. rolling rod; 7. clamping rod; 8. connecting rod; 9. control rod seat; 10. limiting protrusion. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0034] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0035] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0036] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0037] Example 1

[0038] like Figure 1-4 As shown, the utility model provides a flexible variable wing plate for active wind vibration control of a bridge based on a multi-telescopic rod and a membrane structure, comprising four support rods 1 arranged at equal intervals, a flexible membrane structure wing plate 5 and a torsion device; the support rods 1 are connected to each other by a connecting rod 8 installed on the top, the two support rods 1 located in the middle can reduce the deflection of the connecting rod 8, the tops of the support rods 1 located at both ends are respectively provided with the torsion devices, and the flexible membrane structure wing plate 5 is located between the two torsion devices;

[0039] The torsion device comprises a control rod, a fixed rod 3 and a telescopic rod 4; the fixed rod 3 is a rod with a fixed length, and the telescopic rod 4 is a telescopic rod; the control rod is installed on the top of the support rod 1; the bottom of the fixed rod 3 and the telescopic rod 4 are both provided with a sleeve structure 2, and the fixed rod 3 and the telescopic rod 4 are rotatably sleeved on the control rod through the sleeve structure 2, and the control rod is installed with two fixed rods 3 and at least two telescopic rods 4 located between the two fixed rods 3;

[0040] The fixed rod 3 and the telescopic rod 4 in the torsion device at one end of the flexible membrane structure wing plate 5 correspond to the fixed rod 3 and the telescopic rod 4 in the torsion device at the other end respectively, and the tops of the two corresponding fixed rods 3 are connected by a rolling rod 6, and the tops of the two corresponding telescopic rods 4 are connected by a clamping rod 7; the rolling rod 6 is rotatably connected to the fixed rods 3 at both ends, and the clamping rod 7 is rotatably connected to the telescopic rods 4 at both ends; the two side edges of the flexible membrane structure wing plate 5 are respectively installed on the rolling rod 6 on both sides, and the rolling rod 6 is used to roll up or release the flexible membrane structure wing plate 5; the clamping rod 7 includes two detachably connected upper and lower parts, and the middle part of the flexible membrane structure wing plate 5 can be clamped between the upper and lower parts of the clamping rod 7.

[0041] Furthermore, the control rod is installed on the top of the support rod 1 through the control rod seat 9, the bottom of the control rod seat 9 is fixedly installed on the top of the support rod 1, and the two ends of the control rod are respectively installed on the limiting protrusions 10 at the two ends of the control rod seat 9, and the limiting protrusions 10 can axially limit the fixed rod 3 and the telescopic rod 4 installed on the control rod; the end of the connecting rod 8 is fixedly connected to the control rod seat 9.

[0042] Furthermore, the sleeve structure 2 is rotatably mounted on the control rod through a bearing, and the sleeve structure 2 at the bottom of each of the fixed rods 3 and the telescopic rods 4 is provided with a corresponding driving motor, and the driving motor can drive the sleeve structure 2 to drive the corresponding fixed rod 3 or the telescopic rod 4 to rotate, thereby adjusting the angle between the fixed rod 3 and the telescopic rod 4 and the adjacent telescopic rods 4.

[0043] Furthermore, the rolling rod 6 includes a rolling tube and a tubular motor for controlling the rotation of the rolling tube. The two ends of the rolling tube are rotatably connected to the fixed rod 3 through spherical joints respectively. The edge of the flexible membrane structure wing panel 5 is fixedly installed on the rolling tube. The tubular motor can drive the rolling tube to rotate so as to realize the winding or release of the flexible membrane structure wing panel 5.

[0044] Furthermore, both ends of the clamping rod 7 are rotatably connected to the telescopic rod 4 via spherical joints.

[0045] Furthermore, the telescopic rod 4 may adopt an existing electric telescopic rod, which will not be described in detail here.

[0046] Furthermore, the material of the flexible membrane structure wing plate 5 is but not limited to PTFE membrane.

[0047] Further, Figure 4As shown in (a)-(d), by adjusting the angle between the fixed rod 3 and the telescopic rod 4 and the adjacent telescopic rods 4, adjusting the telescopic length of the telescopic rod 4, rolling up or releasing the flexible membrane structure wing panel 5 by the rolling rod 6, and clamping the flexible membrane structure wing panel 5 by the clamping rod 7, the shape of the flexible membrane structure wing panel 5 can be changed as needed.

[0048] Furthermore, it also includes a controller, and the driving motor, the tubular motor and the telescopic rod 4 are electrically connected to the controller respectively. The controller can control the operation of the driving motor, the tubular motor and the telescopic rod 4 respectively as needed, thereby changing the shape of the flexible membrane structure wing plate 5; the controller adopts a PLC controller.

[0049] Furthermore, the cross sections of the control rod, the fixing rod 3 , the telescopic rod 4 , the rolling rod 6 and the clamping rod 7 are all circular.

[0050] Furthermore, it also includes a solar panel for providing auxiliary power to the controller, the drive motor, the tubular motor and the telescopic rod 4.

[0051] The flexible variable wing plate for active wind vibration control of bridges based on multi-telescopic rods and membrane structures described in the utility model can be used to suppress wind-induced vibrations of long-span cable-based bridges and to actively control bridge flutter and vortex vibrations in actual construction. Specifically, Figure 3 As shown, a flexible variable wing plate described in the present application can be installed on both sides of the bridge, and the support column 1 is installed on the bridge. When the bridge is vibrated by wind, the flexible variable wing plate described in the present application is used to control the operation of the drive motor, the tubular motor and the telescopic rod 4 through a controller, so as to flexibly change the shape of the flexible membrane structure wing plate 5, and then change the size of the wind load on the surface of the flexible membrane structure wing plate 5 to flexibly control the wind-induced vibration of the bridge, so as to adapt to the vibration of the bridge and achieve the purpose of suppressing the vibration of the bridge. Figure 6 (a)-(d) are schematic diagrams of vortex flow on the lower surface of the flexible membrane structure wing plate 5 of the utility model in different shapes. Therefore, when dealing with wind-induced vibrations of bridges under different conditions, the utility model has a greater degree of freedom in its design to resist wind loads and can more effectively suppress wind-induced vibrations of bridges;

[0052] Specifically, when changing the shape of the flexible membrane structure wing plate 5: first, the work of each of the driving motors can be controlled separately to control the respective fixed rods 3 and the telescopic rods 4 in the torsion device on both sides of the flexible membrane structure wing plate 5 to rotate left and right, thereby adjusting the angle between the fixed rod 3 and the telescopic rod 4 in the same torsion device, such as Figure 5As shown, the rotation angles of the two corresponding fixed rods 3 and the corresponding two telescopic rods 4 on both sides of the flexible membrane structure wing plate 5 can also be different to change the shape of the flexible membrane structure wing plate 5; secondly, the shape of the flexible membrane structure wing plate 5 can also be changed by individually controlling the telescopic length of each telescopic rod 4; finally, while adjusting the rotation of the fixed rod 3 and the telescopic rod 4 and the telescopic length of the telescopic rod 4 to change the shape of the flexible membrane structure wing plate 5 in the above manner, the operation of the tubular motor in the rolling rod 6 can also be controlled so that the rolling rod 6 can be able to reel in and release the flexible membrane structure wing plate 5, adjust the tightness of the side of the flexible membrane structure wing plate 5, and ensure that the shape of the flexible membrane structure wing plate 5 can be changed smoothly.

[0053] When using the flexible variable wing panel described in the utility model, an ultrasonic wind speed and direction sensor and a digital displacement sensor can be installed on the bridge. The ultrasonic wind speed and direction sensor is used to monitor the wind field data of the bridge vibration in real time, and the digital displacement sensor is used to monitor the vibration information of the bridge in real time. The ultrasonic wind speed and direction sensor and the digital displacement sensor are electrically connected to the controller respectively. The controller can control the operation of the drive motor, the tubular motor and the telescopic rod 4 respectively according to the wind field data of the bridge vibration and the vibration information of the bridge monitored by the ultrasonic wind speed and direction sensor and the digital displacement sensor, thereby changing the shape of the flexible membrane structure wing panel 5.

[0054] like Figure 7 (b) shows a specific example of using the flexible variable wing plate of the utility model to suppress wind-induced vibration of a bridge:

[0055] If the existing rigid wing panels are used to suppress bridge vibration, such as Figure 7 As shown in (a), the effect of suppressing wind-induced vibration can only be achieved by changing the angle between the wing plate and the incoming wind. Compared with the present invention, its vibration suppression effect is relatively simple;

[0056] And as Figure 7 As shown in (b), assuming that the bridge is twisted to the right due to the wind from the left end of the bridge, the torsion angle of the bridge is a. By using the flexible variable wing plate of the utility model, the shape of the flexible membrane structure wing plate 5 is flexibly adjusted through the controller, so that the angle between the two fixed rods 3 in the torsion device is a1, and the torsion angle between the end line of the two winding rods 6 and the bridge deck is a2. At the same time, the extension length of the telescopic rod 4 is b, so as to suppress the wind-induced vibration of the bridge.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A flexible variable wing for active wind vibration control of bridges based on multi-telescopic rods and membrane structures, characterized in that: It comprises four support rods arranged at equal intervals, a flexible membrane structure wing plate and a torsion device; the support rods are connected to each other by a connecting rod installed on the top, the tops of the support rods at both ends are respectively provided with the torsion devices, and the flexible membrane structure wing plate is located between the two torsion devices; The torsion device comprises a control rod, a fixed rod and a telescopic rod; the fixed rod is a rod with a fixed length, and the telescopic rod is a telescopic rod; the control rod is installed on the top of the support rod; the bottom of the fixed rod and the telescopic rod are both provided with a sleeve structure, and the fixed rod and the telescopic rod are rotatably sleeved on the control rod through the sleeve structure, and the control rod is installed with two fixed rods and at least two telescopic rods located between the two fixed rods; The fixed rod and the telescopic rod in the torsion device at one end of the flexible membrane structure wing plate correspond to the fixed rod and the telescopic rod in the torsion device at the other end respectively, and the corresponding two fixed rod tops are connected by a rolling rod, and the corresponding two telescopic rod tops are connected by a clamping rod; the rolling rod is rotatably connected to the fixed rods at both ends, and the clamping rod is rotatably connected to the telescopic rods at both ends; the two side edges of the flexible membrane structure wing plate are respectively installed on the rolling rods on both sides, and the rolling rods are used to roll up or release the flexible membrane structure wing plate; the clamping rod includes two detachably connected upper and lower parts, and the middle part of the flexible membrane structure wing plate can be clamped between the upper and lower parts of the clamping rod.

2. The flexible variable wing panel for active wind vibration control of bridge based on multi-telescopic rods and membrane structure according to claim 1 is characterized in that: The control rod is installed on the top of the support rod through a control rod seat, the bottom of the control rod seat is fixedly installed on the top of the support rod, and the two ends of the control rod are respectively installed on the limiting protrusions at the two ends of the control rod seat; the end of the connecting rod is fixedly connected to the control rod seat.

3. The flexible variable wing for active wind vibration control of bridge based on multi-telescopic rods and membrane structure according to claim 1 is characterized in that: The sleeve structure is rotatably mounted on the control rod via a bearing, and the sleeve structure at the bottom of each of the fixed rods and the telescopic rod is provided with a corresponding driving motor, and the driving motor can drive the sleeve structure to drive the corresponding fixed rod or the telescopic rod to rotate, thereby adjusting the angle between the fixed rod and the telescopic rod and the adjacent telescopic rods.

4. The flexible variable wing for active wind vibration control of bridge based on multi-telescopic rods and membrane structure according to claim 3 is characterized in that: The rolling rod includes a rolling tube and a tubular motor for controlling the rotation of the rolling tube. The edge of the flexible membrane structure wing plate is fixedly installed on the rolling tube. The tubular motor can drive the rolling tube to rotate so as to realize the winding or releasing of the flexible membrane structure wing plate.

5. The flexible variable wing for active wind vibration control of bridge based on multi-telescopic rods and membrane structure according to claim 1 is characterized in that: The flexible membrane structure wing plate is made of PTFE membrane.

6. The flexible variable wing for active wind vibration control of bridge based on multi-telescopic rods and membrane structure according to claim 1 is characterized in that: By adjusting the angle between the fixed rod and the telescopic rod and the adjacent telescopic rods, adjusting the telescopic length of the telescopic rod, rolling up or releasing the flexible membrane structure wing panel by the rolling rod, and clamping and restraining the flexible membrane structure wing panel by the clamping rod, the shape of the flexible membrane structure wing panel can be changed as needed.

7. The flexible variable wing for active wind vibration control of bridge based on multi-telescopic rods and membrane structure according to claim 4 is characterized in that: It also includes a controller, and the driving motor, the tubular motor and the telescopic rod are electrically connected to the controller respectively. The controller can control the operation of the driving motor, the tubular motor and the telescopic rod respectively according to needs, thereby changing the shape of the wing plate of the flexible membrane structure.

8. The flexible variable wing for active wind vibration control of bridge based on multi-telescopic rods and membrane structure according to claim 1 is characterized in that: The cross sections of the control rod, the fixing rod, the telescopic rod, the rolling rod and the clamping rod are all circular.