A displacement amplification inertial absorber passive damping device

Abstract

The present invention relates to a displacement-amplified inertial absorber passive damping device, belonging to the field of engineering vibration control. It includes a ball screw assembly, a smart energy-absorbing and energy-dissipating assembly, and a connecting assembly for connection. It can adjust the magnitude of the inertial effect by adjusting the size and position of the mass block according to the nature of the structure to be installed. When the peak acceleration of the rotation of the mass block does not exceed the trigger limit, the mass block will not contact the friction energy-dissipating plate under the constraint of the spring, and at this time the device mainly absorbs energy; when the peak acceleration of the rotation of the mass block exceeds the trigger limit, the centrifugal force of the mass block is greater than the spring tension and slides out of the initial gap along the slide, and then contacts the friction energy-dissipating plate. At this time, the device begins to enter the energy-absorbing and energy-dissipating mechanism, and as the rotational speed increases, the greater the centrifugal force, the greater the pressure of the mass block on the friction energy-dissipating plate, and the better the energy-dissipating effect. The present invention can significantly reduce the vibration between structures caused by wind loads, human-induced loads, vehicle-induced loads, and seismic loads.

Description

Technical Field

[0001] The present invention relates to a damping device, in particular to a displacement-amplified inertance vibration absorber passive damping device, belonging to the field of engineering vibration control. Background Art

[0002] With the rapid development of China's economy, civil engineering construction has also flourished, and building structures and bridge structures have been continuously developing in the directions of larger, higher, and more complex. During the development process of building structures and bridge structures, the structural vibration problem has become increasingly prominent, and the vibration problem has become an important influencing factor for the safety and applicability of building structures and bridge structures. For example, the collapse of buildings and bridges caused by seismic loads, the discomfort of buildings and bridges caused by wind loads, and the structural vibrations caused by crowd loads and vehicle loads. Structural vibration control is one of the important ways to solve the structural vibration problem, so structural vibration control has become an important direction of concern in the academic and engineering fields.

[0003] Structural vibration control can be divided into active, passive, and semi-active control. Active control requires a large amount of external energy input, with a complex implementation process and high cost; semi-active control overcomes the disadvantage of large energy required by active control to a certain extent, but there are also prominent problems such as complex structure and control process, and great difficulties in optimal design and vibration reduction analysis; passive control has the advantages of low cost, simple structure, and good robustness, but it also has problems such as a narrow effective control bandwidth and a large time delay in control effect. Therefore, proposing a structural vibration control device with a simple structure, good control effect, and low cost has always been a research hotspot for scholars at home and abroad.

[0004] The inertance device can use acceleration amplification to make a small mass provide large inertia, and has good application prospects in the field of structural vibration control. However, the traditional inertance device itself has weak dissipation ability, and when other passive energy dissipation devices are set on the inertance device, the energy absorption effect of the inertance device will be weakened. For example, CN117905844A discloses a pulley assembly displacement-amplified tuned mass inertance damper, which includes a tuned mass inertance damper body arranged on the controlled object. The tuned mass inertance damper body includes a first driving device, a damping control system, a second driving device, and an intelligent control system. The damping control system is respectively connected to the first driving device and the second driving device through a pulley group. The present invention amplifies the relative displacement between the TMD and the bridge by setting a pulley group, but the working efficiency of the actual damper has not been effectively improved, and the energy absorption and energy dissipation capabilities cannot be effectively balanced.

[0005] Therefore, the balance problem between energy absorption and energy dissipation has always been the key restricting the popularization and application of the inertance device, and an inertance damping device with excellent energy absorption and energy dissipation capabilities is urgently needed to be proposed. Summary of the Invention

[0006] In view of the above-mentioned defects existing in the prior art, the present invention proposes a displacement-amplified inertial absorber passive damping device, aiming to overcome problems such as the difficulty in balancing energy absorption and energy dissipation of inertial damping devices. It can not only absorb a large amount of energy in the initial stage of functioning, but also play an effective energy dissipation role after the device absorbs a large amount of energy, and has excellent energy absorption and energy dissipation capabilities.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0008] A displacement-amplified inertial absorber passive damping device includes a ball screw assembly, a smart energy absorption - energy dissipation component, and a connection component for connection;

[0009] The ball screw assembly mainly consists of a screw, a nut, a protective shell, and a screw baffle;

[0010] The connection component includes end plates for controlling the upper and lower positions of the structure and bolts for prefabricating and assembling the above-mentioned components;

[0011] A screw baffle is provided at the bottom end of the screw, and anchoring plates are respectively provided on the left and right sides. The outer extension arm is anchored to the screw through the anchoring plates to form an integral unit for joint operation; the nut is sleeved on the screw and used in cooperation with the screw; both ends of the protective shell are respectively anchored to the end plate at the lower position of the controlled structure and the nut through bolts; the nut has internal threads and is used in cooperation with the threaded screw, and balls are also provided therebetween to reduce friction and increase transmission efficiency and precision; a layer of polytetrafluoroethylene is laid around the screw baffle at the upper end of the screw, and it forms a sliding friction surface with the screw baffle at the upper end of the screw to reduce the friction force when the screw rotates;

[0012] The smart energy absorption - energy dissipation component consists of an outer extension arm, a spring, a slideway, a fixing plate, a mass block, and a friction energy dissipation plate; slideways are respectively arranged on the upper and lower sides inside the outer extension arm, and the mass block is arranged on the slideways; the mass block is connected to the fixing plate through a spring; the fixing plate is arranged at a suitable position on the outer extension arm to ensure that the mass block has sufficient movement space; the friction energy dissipation plate is anchored to the controlled structure.

[0013] Furthermore, the inside of the outer extension arm is hollow to prevent excessive mass from affecting the energy absorption effect.

[0014] Furthermore, the slideway is used to reduce the friction force during the sliding process of the mass block, that is, during the initial energy absorption process.

[0015] Furthermore, one end of the mass block close to the friction energy dissipation plate is round-ended to enable full contact with the friction energy dissipation plate.

[0016] Furthermore, the mass block in the intelligent energy absorption-dissipation component can adjust its mass according to the actual situation of the controlled structure. At the same time, springs with different elastic coefficients and lengths can be replaced to change the initial and moving positions of the mass block. In these two ways, the inertial energy absorption capacity of the controlled structure can be adjusted. When the peak rotational acceleration of the mass block does not exceed the trigger limit, the mass block will not contact the friction energy dissipation plate under the constraint of the spring, and at this time, the device mainly absorbs energy. When the peak rotational acceleration of the mass block exceeds the trigger limit, the centrifugal force of the mass block is greater than the spring tension, and after sliding out of the initial gap along the slideway, it contacts the friction energy dissipation plate. At this time, the device begins to enter the energy absorption and dissipation mechanism. And as the rotational speed increases, the centrifugal force becomes greater, the pressure of the mass block on the friction energy dissipation plate becomes greater, and the energy dissipation effect increases. When the vibration gradually decreases, the centrifugal force gradually decreases, and the spring tension gradually takes the dominant position. The mass block moves to the initial position under the action of the spring, realizing the self-reset of the entire structure.

[0017] Furthermore, the material of the slideway in the intelligent energy absorption-dissipation component is polytetrafluoroethylene or steel; the material of the mass block is steel, aluminum alloy or copper alloy. The contact between the two constitutes a sliding friction surface to prevent energy dissipation when the mass block slides and ensure that the device mainly absorbs energy in the initial stage. The material of the friction energy dissipation plate is paper-based composite material, asbestos copper wire composite material, asbestos-free rubber composite material or asbestos-free resin composite fiber material to ensure the energy dissipation function in the friction stage. The bolt is a high-strength bolt.

[0018] Furthermore, the end plate at the upper part of the connection component is two-layered. The position of the lead screw is fixed by setting the hole sizes in the centers of the two steel plates, while satisfying the rotation of the lead screw. The function of the upper steel plate is to reserve enough space for the lead screw baffle at the upper end of the lead screw.

[0019] When the controlled structure vibrates under the action of human-induced load, vehicle-induced load, seismic load or wind load, relative displacement occurs between the upper end plate and the lower end plate anchored to the controlled structure. The upper end plate will cause the lead screw to have a tendency of longitudinal movement. However, due to the presence of balls arranged in the nut and the lead screw, the vertical movement of the lead screw is converted into horizontal rotation. At the same time, the lead screw drives the outrigger anchored to it to rotate together. When the outrigger rotates, a centrifugal force will be generated. At the same time, since the sliding friction surface exists between the mass block and the slideway, the mass block will slide on the slideway. When the rotational peak acceleration of the mass block does not exceed the trigger limit, the tensile force of the spring plays a dominant role, and the intelligent energy absorption - energy dissipation component mainly absorbs energy; when the rotational peak acceleration of the mass block does not exceed the trigger limit, the centrifugal force of the mass block plays a dominant role, the mass block starts to contact the friction energy dissipation plate, and the intelligent energy absorption - energy dissipation component starts to dissipate energy while absorbing energy through the inertia capacitance; when the vibration gradually decreases, the centrifugal force gradually decreases, and the tensile force of the spring gradually occupies the dominant position. The mass block moves to the initial position under the action of the spring, realizing the self - reset of the entire structure; during the entire movement process, the protective shell plays a supporting role and provides enough space for the rotation of the lead screw.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] A displacement - amplified inertia capacitance vibration absorption passive damping device proposed by the present invention, which can be prefabricated and assembled, can amplify energy absorption, and can intelligently balance the energy absorption and energy dissipation mechanisms, has the characteristics of being prefabricable and assembled, amplifiable energy absorption, and intelligent balance of energy absorption and dissipation mechanisms. It can adjust the inertia capacitance energy absorption capacity according to the vibration reduction (seismic reduction) requirements of the controlled structure, and can intelligently switch between inertia capacitance energy absorption (mainly based on the energy absorption mechanism when the absorbed energy is small) and energy dissipation (mainly based on the energy dissipation mechanism after the absorbed energy reaches a certain level). At the same time, it has the characteristics of being convenient for installation and disassembly, low cost, and simple structure. It can be set in the connection areas such as the inter - story of high - rise structures, the main beam - capping beam of bridges, and the main beam - pier of bridges.

[0022] (1) Introduce the intelligent energy absorption - energy dissipation technology into the inertia capacitance device. When the rotational peak acceleration of the mass block does not exceed the trigger limit, the device mainly absorbs energy; when the rotational peak acceleration of the mass block exceeds the trigger limit, the device starts to enter the energy absorption and energy dissipation mechanisms, and can realize the free conversion of the energy absorption and energy dissipation mechanisms, and balance the energy absorption and energy dissipation capabilities of the device;

[0023] (2) The inertia capacitance effect can be adjusted by adjusting the size of the mass block according to the properties of the structure to be installed, with better adaptability;

[0024] (3) It can be prefabricated and assembled, accurately calculated, processed and assembled in the factory, with advantages such as high - precision dimensions and shapes. Compared with on - site construction, it reduces construction errors and improves the construction quality and safety. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of a displacement amplification inertial absorber passive damping device of the present invention;

[0026] Figure 2 is the present invention Figure 1 a cross-sectional view of the upper end anchoring position A-A of the structure in;

[0027] Figure 3 is the present invention Figure 1 a cross-sectional view of the intelligent energy absorption - energy dissipation component B-B of the structure in;

[0028] Figure 4 is the present invention Figure 1 a cross-sectional view of the nut position C-C of the structure in;

[0029] Figure 5 is the present invention Figure 1 a cross-sectional view of the lower end plate position D-D of the structure in. Specific embodiments

[0030] The following combines the attached Figures 1-5 and specific embodiments to further elaborate on the present invention for a clear understanding of the present invention, but they do not limit the present invention.

[0031] Embodiment 1

[0032] As shown in the attached Figures 1-5 a displacement amplification inertial absorber passive damping device of this embodiment includes a ball screw assembly, an intelligent energy absorption - energy dissipation component, and a connection component for connection.

[0033] The ball screw assembly mainly consists of a screw 11, a nut 10, a protective shell 13, and a screw baffle 12. In this embodiment, the connection component includes end plates 15 for controlling the upper and lower positions of the structure and bolts 14 for prefabricating and assembling the above components. A screw baffle 12 is provided at the bottom end of the screw 11, and anchoring plates 3 are provided on both the left and right sides. The outer extension arm 7 is anchored to the screw 11 through the anchoring plates 3 to form an integral unit for joint operation. The inside of the outer extension arm 7 is hollow to prevent excessive mass from affecting the energy absorption effect. The nut 10 is sleeved on the screw 11 and used in cooperation with the screw 11. Both ends of the protective shell 13 are anchored to the end plate 15 at the lower position of the controlled structure and the nut 10 through bolts 14. As Figure 1 and Figure 4 shown, the nut 10 has a circular cross-section with internal threads and is used in cooperation with the threaded screw 11. A ball 9 is also provided between the two to reduce friction, increase transmission efficiency and accuracy. The three work together to convert the vertical movement of the device into horizontal rotation.

[0034] As Figure 1As shown, a layer of polytetrafluoroethylene 1 is laid around the lead screw baffle 12 at the upper end of the lead screw 11, which forms a sliding friction surface with the lead screw baffle 12 at the upper end of the lead screw 11 to reduce the frictional force when the lead screw rotates. As Figure 1 and Figure 2 shown, lead screw baffles 12 with circular cross-sections are provided at both the upper and lower ends of the lead screw 11. The function of the lead screw baffle 12 is to prevent the lead screw 11 from disengaging from the nut 10 when the vibration is too large, resulting in structural failure. The upper lead screw baffle 12 is to enable the lead screw 11 to move repeatedly with the vibration of the controlled structure, so that the present invention can function properly.

[0035] The intelligent energy absorption - energy dissipation component consists of an extension arm 7, a spring 8, a slideway 6, a fixing plate 4, a mass block 2, and a friction energy dissipation plate 5. Slideways 6 are respectively arranged on the upper and lower sides inside the extension arm 7, and the slideways 6 are used to reduce the frictional force during the sliding process of the mass block 2, that is, the initial energy absorption process. The mass block 2 is arranged on the slideway 6. The mass block 2 is connected to the fixing plate 4 through a spring 8. The fixing plate 4 is arranged at a suitable position on the extension arm 7 so that the mass block 2 has sufficient movement space. The friction energy dissipation plate 5 is anchored to the controlled structure.

[0036] As Figure 1 and Figure 4 shown, each mass block 2 is set to have a rectangular cross-section, and a slideway 6 for its sliding is provided below it. When the mass block 2 is adjusted to a suitable position and size, its displacement is restricted by the spring 8 at one end of the mass block 2.

[0037] In addition, the end plate 15 at the upper part of the connection component is two-layered. The position of the lead screw 11 is fixed by setting the sizes of the central holes of the two-layer steel plates, and at the same time, it satisfies the rotation of the lead screw 11. The upper steel plate is used to reserve sufficient space for the lead screw baffle 12 at the upper end of the lead screw 11.

[0038] In this embodiment, as Figure 1 and Figure 3 shown, one end of the mass block 2 close to the friction energy dissipation plate 5 is round-ended, so that it can fully contact the friction energy dissipation plate 5.

[0039] The material of the slideway 6 in the intelligent energy absorption - energy dissipation component is polytetrafluoroethylene. The material of the mass block 2 is steel, and their contact forms a sliding friction surface to prevent the dissipation of energy when the mass block 2 slides, ensuring that the device mainly functions in energy absorption in the initial stage. The material of the friction energy dissipation plate 5 is a paper-based composite material to ensure the energy dissipation function in the friction stage, and the bolt 14 is a high-strength bolt.

[0040] Specifically, the working principle of the present invention is as follows: When the controlled structure vibrates under the action of human-induced load, vehicle-induced load, seismic load or wind load, relative displacement occurs between the upper end plate 15 and the lower end plate 15 anchored to the controlled structure. The upper end plate 15 causes the lead screw 11 to have a tendency of longitudinal movement. However, due to the presence of balls 9 arranged in the nut 10 and the lead screw 11, the vertical movement of the lead screw 11 is converted into horizontal rotation. At the same time, the lead screw 11 drives the cantilever 7 anchored to it to rotate together. When the cantilever 7 rotates, a centrifugal force is generated. At the same time, since the surface between the mass block 2 and the slideway 6 is a sliding friction surface, the mass block 2 will slide on the slideway 6. When the peak rotational acceleration of the mass block 2 does not exceed the trigger limit, the tensile force of the spring 8 plays a dominant role, and the intelligent energy absorption - energy dissipation component mainly absorbs energy. When the peak rotational acceleration of the mass block 2 does not exceed the trigger limit, the centrifugal force of the mass block 2 plays a dominant role, and the mass block 2 begins to contact the friction energy dissipation plate 5. The intelligent energy absorption - energy dissipation component starts to dissipate energy while absorbing energy through the inertial energy absorption. When the vibration gradually decreases, the centrifugal force gradually decreases, and the tensile force of the spring 8 gradually occupies the dominant position. The mass block 2 moves to the initial position under the action of the spring 8, realizing the self - reset of the entire structure. During the entire movement process, the protective shell 13 plays a supporting role and provides enough space for the rotation of the lead screw 11.

[0041] Embodiment 2

[0042] In this embodiment, the mass block 2 in the intelligent energy absorption - energy dissipation component can adjust its mass according to the actual situation of the controlled structure. At the same time, it can also replace the springs 8 with different elastic coefficients and lengths to change the initial and moving positions of the mass block 2, thereby realizing the adjustment of the inertial energy absorption capacity of the controlled structure in these two ways. When the peak rotational acceleration of the mass block 2 does not exceed the trigger limit, it can be selected according to the energy absorption requirement. In the field of civil engineering, it can be set as 0.3g - 0.5g, where g = 9.8m / s². The mass block 2 will not contact the friction energy dissipation plate under the constraint of the spring, and at this time, the device mainly absorbs energy. When the peak rotational acceleration of the mass block 2 exceeds the trigger limit, the centrifugal force of the mass block 2 is greater than the tensile force of the spring 8 and slides out of the initial gap along the slideway 6 and contacts the friction energy dissipation plate 5. At this time, the device starts to enter the energy absorption and energy dissipation mechanism. And as the rotational speed increases, the centrifugal force becomes greater, and the pressure of the mass block 2 on the friction energy dissipation plate 5 becomes greater, increasing the energy dissipation effect. When the vibration gradually decreases, the centrifugal force gradually decreases, and the tensile force of the spring 8 gradually occupies the dominant position. The mass block 2 moves to the initial position under the action of the spring, realizing the self - reset of the entire structure.

[0043] The above are only the preferred embodiments of the present invention, and do not impose any formal restrictions on the structure of the present invention. The layout type and usage quantity of the present invention are not limited to this example either, and can be optimized according to the actual engineering situation. Any modifications, equivalent changes, and decorations made to the above embodiments based on the technical principle of the present invention without departing from the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A displacement amplifying inertia vibration absorbing passive damping device, characterized in that: It includes a ball screw assembly, an intelligent energy absorption and energy consumption assembly, and a connecting assembly that plays a connecting role; The ball screw assembly mainly consists of a screw (11), a nut (10), a protective shell (13) and a screw baffle (12); The connection assembly comprises end plates (15) at the upper and lower positions of the controlled structure and bolts (14) for realizing the prefabrication and assembly of the above-mentioned components; The bottom end of the lead screw (11) is provided with a lead screw baffle (12), and the left and right sides are provided with anchor plates (3), and the outrigger arm (7) and the lead screw (11) are anchored by the anchor plates (3) so that they form a whole and work together; the nut (10) is sleeved on the lead screw (11) and used in conjunction with the lead screw (11); the two ends of the protective shell (13) are respectively anchored to the end plate (15) and the nut (10) at the lower position of the controlled structure by bolts (14); the nut (10) has a thread inside and is used in conjunction with the threaded lead screw (11), and a ball (9) is also provided between the two to reduce friction and increase transmission efficiency and precision; a layer of polytetrafluoroethylene (1) is laid around the lead screw baffle (12) at the upper end of the lead screw (11), and the polytetrafluoroethylene (1) and the lead screw baffle (12) at the upper end of the lead screw (11) form a sliding friction surface, so as to reduce the friction applied to the lead screw when it rotates; The intelligent energy absorption and energy dissipation component is composed of an outrigger (7), a spring (8), a slideway (6), a fixed plate (4), a mass block (2) and a friction energy dissipation plate (5); the slideways (6) are arranged on the upper and lower sides of the outrigger (7), and the mass block (2) is arranged on the slideway (6); the mass block (2) is connected to the fixed plate (4) via the spring (8); the fixed plate (4) is arranged at a suitable position of the outrigger (7) so that the mass block (2) has sufficient movement space; and the friction energy dissipation plate (5) is anchored on the controlled structure.

2. The displacement amplification inertia vibration absorption passive damping device according to claim 1, characterized in that: The interior of the outrigger arm (7) is hollow to prevent excessive mass from affecting the energy absorption effect.

3. The displacement amplification inertia vibration absorption passive damping device according to claim 1, characterized in that: The slideway (6) is used to reduce the friction force applied to the mass block (2) during the sliding process, that is, during the initial energy absorption process.

4. The displacement amplification inertia vibration absorption passive damping device according to claim 1, characterized in that: One end of the mass block (2) adjacent to the friction energy dissipation plate (5) is rounded, so that it can fully contact the friction energy dissipation plate (5).

5. The displacement amplification inertia vibration absorption passive damping device according to claim 4, characterized in that: The mass block (2) in the intelligent energy absorption and energy consumption component can adjust its mass size according to the actual situation of the controlled structure, and can also replace the spring (8) with different elastic coefficients and lengths to change the initial and moving positions of the mass block (2). Through these two methods, the energy absorption capacity of the inertia of the controlled structure can be adjusted. When the rotation peak acceleration of the mass block (2) does not exceed the trigger limit, the mass block (2) will not contact the friction energy consumption plate under the action of the spring constraint. At this time, the device mainly absorbs energy. When the rotation peak acceleration of the mass block (2) exceeds the trigger limit, the mass block (2) will not contact the friction energy consumption plate under the action of the spring constraint. At this time, the device mainly absorbs energy. When the acceleration exceeds the trigger limit, the centrifugal force of the mass block (2) is greater than the tension of the spring (8) and after sliding out of the initial gap along the slideway (6), it contacts the friction energy dissipation plate (5). At this time, the device begins to enter the absorption and energy dissipation mechanism, and as the rotation speed increases, the centrifugal force increases, the pressure of the mass block (2) on the friction energy dissipation plate (5) increases, and the energy dissipation effect increases; when the vibration gradually decreases, the centrifugal force gradually decreases, the tension of the spring (8) gradually takes the dominant position, and the mass block (2) moves to the initial position under the action of the spring, realizing the self-reset of the entire structure.

6. The displacement amplification inertia vibration absorption passive damping device according to claim 1, characterized in that: The slideway (6) in the smart energy absorption and energy dissipation component is made of polytetrafluoroethylene and steel; the mass block (2) is made of steel, aluminum alloy, and copper alloy, and the two are in contact to form a sliding friction surface, which prevents the mass block (2) from dissipating energy when sliding, and ensures that the device mainly absorbs energy in the initial stage; the friction energy dissipation plate (5) is made of a paper-based composite material, an asbestos-copper wire composite material, an asbestos-free rubber composite material, and an asbestos-free resin composite fiber material, to ensure the energy dissipation function in the friction stage; the bolt (14) is a high-strength bolt.

7. The displacement amplification inertia vibration absorption passive damping device according to claim 1, characterized in that: The end plate (15) at the upper part of the connecting assembly is composed of two layers, and the position of the lead screw (11) is fixed by setting the size of the central opening of the two layers of steel plates, while ensuring that the lead screw (11) can rotate. The steel plate above it serves to reserve sufficient space for the lead screw baffle (12) at the upper end of the lead screw (11).

8. The displacement amplification inertia vibration absorption passive damping device according to claim 1, characterized in that: When the controlled structure vibrates under the action of human load, vehicle load, earthquake load or wind load, the upper end plate (15) and the lower end plate (15) anchored to the controlled structure generate relative displacement, and the upper end plate (15) causes the lead screw (11) to have a tendency to move longitudinally. However, due to the presence of the balls (9) arranged in the nut (10) and the lead screw (11), the vertical movement of the lead screw (11) is converted into horizontal rotation. At the same time, the lead screw (11) drives the outrigger arm (7) anchored thereto to rotate together. When the outrigger arm (7) rotates, centrifugal force is generated. At the same time, since there is a sliding friction surface between the mass block (2) and the slideway (6), the mass block (2) slides on the slideway (6). When the mass block (2) When the peak rotational acceleration of the mass block (2) does not exceed the trigger limit, the tension of the spring (8) plays a leading role, and the intelligent energy absorption and energy dissipation component mainly absorbs energy; when the peak rotational acceleration of the mass block (2) does not exceed the trigger limit, the centrifugal force of the mass block (2) plays a leading role, the mass block (2) begins to contact the friction energy dissipation plate (5), and the intelligent energy absorption and energy dissipation component begins to dissipate energy while absorbing energy through inertia; when the vibration gradually decreases, the centrifugal force gradually decreases, the tension of the spring (8) gradually takes a leading position, and the mass block (2) moves to the initial position under the action of the spring (8), thereby realizing self-reset of the entire structure; during the entire movement process, the protective shell (13) plays a supporting role and provides sufficient space for the rotation of the lead screw (11).

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