A quasi-zero stiffness vibration reduction device based on tensegrity

Abstract

The present invention provides a quasi-zero stiffness vibration damping device based on tensegrity, comprising a first tensegrity vibration damping device, a second tensegrity vibration damping device and a cam group buffer device. The device utilizes the self-balancing of the tensegrity structure and the nonlinear quasi-zero stiffness characteristics of low dynamic stiffness and high static stiffness, and through the coordinated work of the first tensegrity vibration damping device and the second tensegrity vibration damping device, the longitudinal force is converted into the deformation of the elastic element of the quasi-zero stiffness mechanism, thereby effectively achieving vibration reduction. The present invention adopts a combination of the tensegrity structure and the cam group structure, and realizes vibration reduction by combining the vibration damping property of the quasi-zero stiffness structure with the vibration damping property of the tensioning mechanism. The device has strong impact resistance, remarkable self-balancing and self-stabilizing properties, can effectively reduce vibration, and improves the safety of the vibration damping device.

Description

Technical Field

[0001] The invention relates to the technical field of vibration reduction, and in particular to a quasi-zero stiffness vibration reduction device based on tensegrity. Background Art

[0002] In the fields of marine engineering, aerospace, precision instruments, national defense science and technology, etc., the large-scale development of industrial equipment has made the problem of low-frequency vibration suppression more prominent. Low-frequency vibration has become a common problem that affects equipment performance, production efficiency, and safety and comfort performance. Traditional vibration reduction systems mainly use structures such as springs and dampers with fixed parameters to achieve the vibration reduction function of the controlled object to meet the production requirements of most industrial scenarios. However, with the continuous improvement of processing and measurement accuracy in modern industry, and the vibration reduction objects have the characteristics of large loads and complex structures, the traditional linear vibration reduction system is not ideal for isolating low-frequency and ultra-low-frequency vibrations, and there is a contradiction between the vibration reduction frequency and the load-bearing capacity. In order to reduce the vibration reduction frequency of the vibration reduction system and thus increase the vibration reduction bandwidth, the most commonly used method is to reduce the stiffness of the vibration reduction system, but the lower stiffness will lead to an increase in the static compression of the vibration reduction unit and a significant decrease in the load-bearing capacity of the vibration reduction system.

[0003] Traditional vibration damping devices play a vital role in many fields, but their inherent defects limit the further improvement of their performance and the expansion of their application scope. First, traditional shock absorbers are mostly made of materials such as rubber, which have a limited service life and are not easy to replace, resulting in a significant decrease in vibration reduction effect over time. Secondly, these devices are often difficult to adapt to complex environments such as high and low temperatures, large load impacts, salt spray, and damp heat, which limits their application under extreme conditions. In addition, the structural design of some traditional shock absorbers is complex, resulting in large sizes and low space utilization, which increases manufacturing costs on the one hand and makes maintenance and replacement more difficult on the other.

[0004] Tensegrity structures have become a new direction in shock absorber research because of their ability to adapt to the environment and maintain self-balance by relying on their own structure. However, ordinary quasi-zero stiffness structures cannot be directly applied to shock absorbers because it is difficult for quasi-zero stiffness structures to remain stable during operation and need to be used in parallel with other structures to achieve the desired effect. Therefore, providing a simple, stable and reliable shock absorbing device with quasi-zero stiffness characteristics is an urgent problem to be solved by those skilled in the art. Summary of the invention

[0005] In order to solve the problems of traditional vibration damping devices' dependence on substrates, poor stability and difficulty in control, the present invention provides a quasi-zero stiffness vibration damping device based on tensegrity, comprising a first tensegrity vibration damping device, a second tensegrity vibration damping device and a cam group buffer device. The second tensegrity vibration damping device is provided with a cam group buffer device at the upper and lower top ends, which can move horizontally in the first tensegrity vibration damping device through a rolling ball; the first tensegrity vibration damping device is at the outermost side of the entire device, serving as the main structure of the entire vibration damping device.

[0006] Furthermore, the first tensioning integral vibration reduction device includes an upper top cover, an upper support column, a small spring groove of the upper support column, a base, a lower support column, a small spring groove of the lower support column, a large spring connecting port, a small spring and a large spring; the upper top cover, the upper support column and the small spring groove of the upper support column are an integrated structure, the upper top cover is circular, and the surface is in direct contact with the support object; the upper support column is cylindrical, and three small spring grooves of the upper support column are distributed circumferentially on the surface; the base, the lower support column and the small spring groove of the lower support column are an integrated structure, the lower support column is a circular tube structure, the inner diameter of the upper support column is the same as the diameter of the upper support column, and three small spring grooves of the lower support column are distributed circumferentially on the surface.

[0007] Furthermore, the upper support column is inserted into the lower support column, the small spring groove of the upper support column coincides with the small spring groove of the lower support column, and is connected by three small springs; the lower surface of the upper cover and the upper surface of the base are each provided with three large spring connection openings in a circumferential distribution.

[0008] Furthermore, there are 6 large springs, each with the same elastic constant, and each large spring is connected to the large spring connection ports on the adjacent upper cover and the base, and the two large springs on the same large spring connection port are arranged symmetrically and tilted in an "eight" shape. The quasi-zero stiffness characteristic is mainly produced by 6 inclined large springs and 3 small springs to form a special spring system, which can produce quasi-zero stiffness characteristics in the vertical direction, and the initial stiffness value is set by different inclination angles of the large springs; when the system is subjected to a vertical compression force, the length and inclination angle of the 6 large springs will change, and the change in the inclination angle will cause the compression of the inclined large spring to decrease, the stretch of the 3 small springs to increase, the stiffness coefficient of the inclined large spring will decrease, and the stiffness coefficient of the small spring will remain unchanged, so the entire spring system can produce a quasi-zero stiffness characteristic in the vertical direction.

[0009] Furthermore, the second tensioned integral vibration reduction device is a three-rod and nine-cable tensioned integral structure, including elastic rods, vertical cables, horizontal cables, lock tongue columns and block grooves; the elastic rods are shuttle-shaped and there are three of them, which are composed of two arc-shaped elastic rods; the two ends of the vertical cables are respectively connected to the top and bottom ends of two adjacent elastic rods; there are a total of 6 horizontal cables, which are connected to the two ends of the elastic rods through a cam group buffer device.

[0010] Furthermore, a group of cam group buffer devices are connected at both ends of the transverse cable, including a rolling ball, a cam group platform, a first large cam, a second large cam, a first small cam, a second small cam, an elastic sheet, a small cam tension cable, a large and small cam connecting nail, a transverse cable fixing head, a small cam tension cable fixing head and a cam group platform connecting column; the cam group platform is located at the top of the elastic rod, and the rolling ball is located on the upper top surface of the cam group platform; the first large cam and the second large cam, the first small cam and the second small cam are mirror images of each other, and the large and small cams are connected by the large and small cam connecting nails and the cam group platform connecting column so that the two can only rotate at the same angle; the two ends of the transverse cable are respectively wrapped around the first large cam and the second large cam, and are connected to the transverse cable fixing head on the large cam; the small cam tension cable is wrapped around the small cam, one end is connected to the small cam tension cable fixing head, and the other end is connected to the elastic sheet; the two ends of the elastic sheet are respectively connected to the small cam tension cable wrapped around the first small cam and the second small cam.

[0011] Furthermore, when the second tensioning integral vibration reduction device is deformed by an external load, the cam group buffer device is subjected to only a small pulling force in the lever force-saving device composed of large and small cams, and the horizontal and vertical parts connected to the large cam are only subjected to a small pulling force.

[0012] A quasi-zero stiffness vibration reduction device based on tensegrity, the steps are as follows:

[0013] Step a: In the no-load state, the lower surface of the upper cover contacts the rolling ball, and the small spring is in a stretched state; under the support of the second tensioning integral vibration reduction device, the large spring remains in a relaxed state.

[0014] Step b: When a heavy object contacts the vibration reduction device, the first tensioning integral vibration reduction device first plays a buffering role; the upper cover moves downward when under pressure, the small spring is subjected to tension, and the originally compressed large spring bends along its inclination direction, resulting in a reduction in its compression amount, while the stretching amount of the small spring increases; in this process, the stiffness coefficient of the large spring decreases, while the stiffness coefficient of the small spring remains unchanged. This change reduces the stiffness coefficient of the entire system, effectively achieving a vibration reduction effect.

[0015] Step c: When the pressure on the upper cover is transmitted to the second tensioned integral vibration damping device, the device begins to respond with deformation; the elastic rod deforms under the pressure, and the horizontal and vertical cables become longer due to the tension; the bearing capacity of the horizontal cable is improved under the action of the cam group buffer device, and the vertical cable tilts; the diameter of the circumscribed circle of the entire second tensioned integral vibration damping device increases accordingly, and thanks to the self-balancing and self-stabilizing characteristics of the tensioned integral structure, the device will eventually return to a steady state, thereby playing a vibration damping role.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Enhanced self-balancing and self-stability: The present invention utilizes the self-stress characteristics of the tensegrity structure to achieve self-balancing and self-stability of the structure. This characteristic enables the device to automatically adjust and quickly return to a stable state when subjected to external vibration or impact, thereby improving vibration reduction efficiency and reliability.

[0018] 2. Significantly reduce the fundamental frequency: The quasi-zero stiffness vibration isolation device significantly reduces the fundamental frequency of the protected structure to minimize the transmission of force or displacement, which is particularly important for vibration reduction under low-frequency or ultra-low-frequency excitation conditions and is more effective than traditional vibration reduction measures.

[0019] 3. Nonlinear stiffness characteristics: The unique nonlinear stiffness characteristics of the present invention enable it to reduce the vibration transmission from the vibration source while maintaining the stability of the system by providing sufficient load-bearing capacity, which is difficult to achieve in traditional vibration reduction technology.

[0020] 4. Labor-saving structure: Through the labor-saving device of the cam group device, the small cam can achieve a larger bearing capacity with a smaller pulling force, thereby reducing the required energy consumption during the vibration reduction process and improving the efficiency of the vibration reduction device.

[0021] 5. Optimization of multi-structure vibration reduction effect: The present invention provides two tensegrity vibration reduction structures, both of which can effectively reduce the vibration of the working platform. They can not only fully utilize the self-balancing and self-stabilizing characteristics of the tensegrity structure to provide bearing capacity, but also make up for the lack of stability of the quasi-zero stiffness structure. The advantages of the low natural frequency and low-frequency vibration reduction characteristics of the quasi-zero stiffness structure can also be reflected, so that it can adapt to more vibration reduction needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to better understand the present invention and do not constitute an improper limitation of the present invention.

[0023] Figure 1 It is a schematic diagram of the structure of a tensegrity-based vibration reduction device;

[0024] Figure 2 It is a schematic diagram of the structure of the first tensioning integral vibration reduction device;

[0025] Figure 3 This is the first detailed drawing of the overall vibration reduction device;

[0026] Figure 4 It is the mechanical schematic diagram of the first tension integral vibration reduction device;

[0027] Figure 5 It is a schematic diagram of the structure of the second tensioning integral vibration reduction device;

[0028] Figure 6 It is a schematic diagram of the structure of the cam group buffer device;

[0029] Figure 7 It is a detailed schematic diagram of the cam group buffer device;

[0030] Figure 8 It is a schematic diagram of the large cam structure;

[0031] Fig. 9 It is a schematic diagram of the small cam structure;

[0032] 1-first tensioning integral vibration reduction device 2-second tensioning integral vibration reduction device 3-cam group buffer device;

[0033] 101-upper cover 102-upper support column 103-upper support column small spring slot 104-base 105-lower support column 106-lower support column small spring slot 107-large spring connection port 108-small spring 109-large spring;

[0034] 201-elastic rod 202-vertical cable 203-horizontal cable;

[0035] 301-rolling ball 302-cam group platform 303-first large cam 304-second large cam 305-first small cam 306-second small cam 307-elastic sheet 308-small cam tension rope 309-large and small cam connecting nails 310-cross rope fixing head 311-small cam tension rope fixing head 312-cam group platform connecting column. DETAILED DESCRIPTION

[0036] The following is a description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, including various details of the embodiments of the present invention to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for clarity and conciseness, the description of well-known functions and structures is omitted in the following description.

[0037] See attached Figure 1 The present invention provides a quasi-zero stiffness vibration damping device based on tensegrity, comprising a first tensegrity vibration damping device 1, a second tensegrity vibration damping device 2 and a cam group buffer device 3. The second tensegrity vibration damping device 2 is provided with a cam group buffer device 3 at the upper and lower top ends, and can move horizontally in the first tensegrity vibration damping device 1 through a rolling ball 301; the first tensegrity vibration damping device 1 is at the outermost side of the entire device, serving as the main structure of the entire vibration damping device.

[0038] See attached Figure 2The first tensioned integral vibration reduction device 1 includes an upper top cover 101, an upper support column 102, a small spring groove 103 of the upper support column, a base 104, a lower support column 105, a small spring groove 106 of the lower support column, a large spring connection port 107, a small spring 108 and a large spring 109; the upper top cover 101, the upper support column 102 and the small spring groove 103 of the upper support column are an integrated structure, the upper top cover 101 is circular, and the surface is directly in contact with the load; the upper support column 102 is cylindrical, and three small spring grooves 103 of the upper support column are distributed in a circle on the surface; the base 104, the lower support column 105 and the small spring groove 106 of the lower support column are an integrated structure, the lower support column 105 is a circular tube structure, the inner diameter of the inner circle is the same as the diameter of the upper support column 102, and three small spring grooves 106 of the lower support column are distributed in a circle on the surface.

[0039] See attached Figure 3 The upper support column 102 is inserted into the lower support column 105, the small spring groove 103 of the upper support column coincides with the small spring groove 106 of the lower support column, and is connected by three small springs 108; the lower surface of the upper cover 101 and the upper surface of the base 104 are each provided with three large spring connection ports 107 in a circular distribution.

[0040] See attached Figure 4 , there are 6 large springs 109, each of which has the same elastic constant. Each large spring 109 is connected to the large spring connection port 107 on the adjacent upper cover 101 and the base 104, respectively. The two large springs 109 on the same large spring connection port 107 are arranged symmetrically and tilted in an "eight" shape. The 6 inclined large springs 109 and 3 small springs 108 that mainly produce the quasi-zero stiffness characteristic constitute a special spring system, which can produce the quasi-zero stiffness characteristic in the vertical direction, and the initial stiffness value is set by the different inclination angles of the large springs; when the system is subjected to a vertical compression force, the length and inclination angle of the 6 large springs 109 will change, and the change in the inclination angle will cause the compression of the inclined large spring 109 to decrease, the stretch of the 3 small springs 108 to increase, the stiffness coefficient of the inclined large spring 109 will decrease, and the stiffness coefficient of the small spring 108 will remain unchanged, so the entire spring system can produce the quasi-zero stiffness characteristic in the vertical direction.

[0041] See attached Figure 5 The second tensioned integral vibration damping device 2 is a three-rod and nine-cable tensioned integral structure, including an elastic rod 201, a vertical cable 202, a horizontal cable 203, a locking tongue column and a block groove; the elastic rod 201 is shuttle-shaped and has a total of 3 pieces, which are composed of two arc-shaped elastic rods; the two ends of the vertical cable 202 are respectively connected to the top and bottom ends of two adjacent elastic rods 201; the horizontal cables 203 are 6 in total, which are connected to the two ends of the elastic rod 201 through the cam group buffer device 3.

[0042] See attached Figure 6 and Figure 7 The two ends of the transverse cable 203 are connected to a group of cam group buffer devices 3, including a rolling ball 301, a cam group platform 302, a first large cam 303, a second large cam 304, a first small cam 305, a second small cam 306, an elastic sheet 307, a small cam tension cable 308, large and small cam connecting nails 309, a transverse cable fixing head 310, a small cam tension cable fixing head 311 and a cam group platform connecting column 312; the cam group platform 302 is located at the top of the elastic rod 201, and the rolling ball 301 is located on the upper top surface of the cam group platform 302; the first large cam 303 and the second large cam 304, the first small cam 305 and the second small cam 306 are mirror images of each other, and the large and small cams are connected by the large and small cam connecting nails 309 and the cam group platform connecting columns 312, so that the two can only rotate at the same angle; the two ends of the horizontal cable 203 are respectively wrapped around the first large cam 303 and the second large cam 304, and are connected to the horizontal cable fixing head 310 on the large cam; the small cam tension cable 308 is wrapped around the small cam, one end is connected to the small cam tension cable fixing head 311, and the other end is connected to the elastic sheet 307; the two ends of the elastic sheet 307 are respectively connected to the small cam tension cable 308 wrapped around the first small cam 305 and the second small cam 306.

[0043] See attached Figure 8 and attached Fig. 9 When the second tensioning integral vibration damping device 2 is deformed by an external load, the cam group buffer device is a lever-saving device composed of large and small cams, and the horizontal and vertical parts connected to the large cam are only subjected to a small pulling force.

[0044] The method for using the tensegrity-based quasi-zero stiffness vibration reduction device of the present invention comprises the following three steps:

[0045] Step a: In the no-load state, the lower surface of the upper cover 101 contacts the rolling ball 301, and the small spring 108 is in a stretched state; under the support of the second tensioning integral vibration reduction device 2, the large spring 109 remains in a relaxed state.

[0046] Step b: When the heavy object contacts the vibration reduction device, the first tensioned integral vibration reduction device 1 first plays a buffering role; the upper cover 101 moves downward when under pressure, the small spring 108 is subjected to tension, and the originally compressed large spring 109 bends along its tilt direction, resulting in a reduction in its compression amount, while the stretching amount of the small spring 108 increases; in this process, the stiffness coefficient of the large spring 109 decreases, while the stiffness coefficient of the small spring 108 remains unchanged, and this change reduces the stiffness coefficient of the entire system, effectively achieving a vibration reduction effect;

[0047] Step c: When the pressure on the upper cover 101 is transmitted to the second tensioned integral vibration damping device 2, the device begins to respond with deformation; the elastic rod 201 deforms under the pressure, and the horizontal cable 203 and the vertical cable 202 become longer due to the tension; the bearing capacity of the horizontal cable 203 is improved under the action of the cam group buffer device, and the vertical cable 202 tilts; the diameter of the circumscribed circle of the entire second tensioned integral vibration damping device 2 increases accordingly, and thanks to the self-balancing and self-stabilizing characteristics of the tensioned integral structure, the device will eventually return to a steady state, thereby playing a vibration reduction role.

[0048] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A quasi-zero stiffness vibration reduction device based on tensegrity, characterized in that: The invention comprises a first tensioned integral vibration damping device (1), a second tensioned integral vibration damping device (2) and a cam group buffer device (3); the second tensioned integral vibration damping device (2) is provided with a cam group buffer device (3) at the upper and lower top ends, and can move horizontally in the first tensioned integral vibration damping device (1) through a rolling ball (301); the first tensioned integral vibration damping device (1) is at the outermost side of the entire device, and serves as the main structure of the entire vibration damping device; the first tensioned integral vibration damping device (1) comprises an upper top cover (101), an upper support column (102), an upper support column small spring groove (103), a base (104), a lower support column (105), a lower support column small spring groove (106), a large spring connection port (107), a small spring (108) and a large spring ( 109); the upper cover (101), the upper support column (102) and the upper support column small spring groove (103) are an integrated structure, the upper cover (101) is circular, and the upper surface is in direct contact with the load; the upper support column (102) is cylindrical, and three upper support column small spring grooves (103) are opened on the surface in a circumferential manner; the base (104), the lower support column (105) and the lower support column small spring groove (106) are an integrated structure, the lower support column (105) is a circular tube structure, the inner diameter of the lower support column (102) is the same as the diameter of the upper support column (102), and three lower support column small spring grooves (106) are opened on the surface in a circumferential manner; the upper support column (102) is inserted into the lower support column (105), and the upper support column small spring groove (103) is connected to the lower support column small spring groove ( 106) overlap and are connected by three small springs (108); the lower surface of the upper cover (101) and the upper surface of the base (104) are each provided with three large spring connection ports (107) distributed in a circumferential manner; there are a total of six large springs (109), each of which has an equal elastic constant, and each large spring (109) is respectively connected to the large spring connection ports (107) on the adjacent upper cover (101) and the base (104), and the two large springs (109) on the same large spring connection port (107) are arranged in an "eight" symmetrical tilted manner; the six tilted large springs (109) and the three small springs (108) form a spring system that produces a quasi-zero stiffness characteristic, which can produce a quasi-zero stiffness characteristic in the vertical direction, and the large springs Initial stiffness values ​​are set at different tilt angles; when the system is subjected to a compressive force in the vertical direction, the lengths and tilt angles of the six large springs (109) will change, and the change in tilt angle will cause the compression of the inclined large springs (109) to decrease, the stretching of the three small springs (108) to increase, the stiffness coefficient of the inclined large springs (109) to decrease, while the stiffness coefficient of the small springs (108) remains unchanged, so that the entire spring system can produce a quasi-zero stiffness characteristic in the vertical direction; the second tensioned integral vibration reduction device (2) is a three-rod and nine-cable tensioned integral structure, comprising an elastic rod (201), a vertical cable (202), a horizontal cable (203), a locking tongue column, and a block slot; the elastic rod (201) is shuttle-shaped and has a total of three rods, which are composed of two arc-shaped elastic rods;The two ends of the vertical cable (202) are respectively connected to the top and bottom ends of two adjacent elastic rods (201); the horizontal cables (203) are 6 in total and are connected to the two ends of the elastic rod (201) through a cam group buffer device (3); the two ends of the horizontal cable (203) are connected to a group of cam group buffer devices (3), including a rolling ball (301), a cam group platform (302), a first large cam (303), a second large cam (304), a first small cam (305), a second small cam (306), an elastic sheet (307), a small cam tension cable (308), large and small cam connecting nails (309), a horizontal cable fixing head (310), a small cam tension cable fixing head (311) and a cam group platform connecting column (312); the cam group platform (302) is located at the top of the elastic rod (201), and the rolling ball (301) is located at the cam group platform. The upper top surface of the assembly platform (302); the first large cam (303) and the second large cam (304), the first small cam (305) and the second small cam (306) are mirror images of each other, and the large and small cams are connected by large and small cam connecting nails (309) and cam assembly platform connecting columns (312), so that the two can only rotate at the same angle; the two ends of the horizontal cable (203) are respectively wound around the first large cam (303) and the second large cam (304), and are connected to the horizontal cable fixing heads (310) on the large cams; the small cam tension cable (308) is wound around the small cam, one end is connected to the small cam tension cable fixing head (311), and the other end is connected to the elastic sheet (307); the two ends of the elastic sheet (307) are respectively connected to the small cam tension cable (308) wound around the first small cam (305) and the second small cam (306). ; 2. A quasi-zero stiffness vibration reduction device based on tensegrity according to claim 1, characterized in that: When the second tensioning integral vibration damping device (2) is deformed by an external load, the cam group buffer device is a lever force-saving device composed of large and small cams, and the horizontal and vertical parts connected to the large cam are only subjected to a small pulling force.

3. A method for using a tensegrity-based quasi-zero stiffness vibration reduction device as claimed in claim 2, characterized in that The method comprises the following steps: step a: in a no-load state, the lower surface of the upper cover (101) contacts the rolling ball (301), and the small spring (108) is in a stretched state; under the support of the second tensioned integral vibration reduction device (2), the large spring (109) remains in a relaxed state; step b: when a heavy object contacts the vibration reduction device, the first tensioned integral vibration reduction device (1) first plays a buffering role; the upper cover (101) moves downward when subjected to pressure, the small spring (108) is subjected to tension, and the originally compressed large spring (109) bends along its tilt direction, resulting in a reduction in its compression amount, while the stretch amount of the small spring (108) increases; in this process, the stiffness coefficient of the large spring (109) decreases, and The stiffness coefficient of the small spring (108) remains unchanged, and this change reduces the stiffness coefficient of the entire system, effectively achieving a vibration reduction effect; step c: when the pressure on the upper cover (101) is transmitted to the second tensioned integral vibration reduction device (2), the device begins to respond with deformation; the elastic rod (201) deforms under the pressure, and the horizontal cable (203) and the vertical cable (202) become longer due to the tension; the bearing capacity of the horizontal cable (203) is improved under the action of the cam group buffer device, and the vertical cable (202) tilts; the diameter of the circumscribed circle of the entire second tensioned integral vibration reduction device (2) increases accordingly, and thanks to the self-balancing and self-stabilizing characteristics of the tensioned integral structure, the device will eventually reach a steady state again, thereby exerting a vibration reduction effect.

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