Vibration control device based on metamaterial multifunctional coupling

Abstract

The invention relates to the technical field of vibration control devices, and discloses a vibration control device based on metamaterial multifunctional coupling, which comprises a top seat, four damping mechanisms and four bases, four mounting grooves I are formed in the bottom of the top seat, one ends of the damping mechanisms are arranged on the inner sides of the mounting grooves I, and the other ends of the damping mechanisms are arranged on the inner sides of the mounting grooves I; a damping mechanism is arranged at one end of the base, a bottom foot is arranged at the other end of the damping mechanism, contact columns are fixedly connected to the two sides of the exterior of the bottom foot, a second mounting groove is formed in the outer side of the base, a placement groove is formed in the outer side of the base, the exterior of the bottom foot is located in the second mounting groove, and the outer sides of the contact columns are rotationally connected with the inner side of the placement groove. Through cooperation of a plurality of structures, energy can be eliminated for vibration in different directions in the horizontal direction, the inclined design enables the vibration damper to play a role in the vertical direction, energy is consumed in combination with flowing of damping liquid, the buffering effect is enhanced in cooperation with an elastic auxiliary mechanism, and the comprehensiveness and effectiveness of vibration control are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of vibration control device technology, specifically to a vibration control device based on metamaterial multifunctional coupling. Background Technology

[0002] Vibration is a prevalent phenomenon in engineering fields such as construction, machinery, and transportation. It not only affects the normal operating accuracy of equipment and shortens the service life of structures, but also poses a potential threat to personnel safety. Therefore, vibration control technology has always been a key research area in engineering. Currently, various vibration control devices are widely used to reduce the adverse effects of vibration. These devices effectively suppress vibration by absorbing, dissipating, or blocking vibration energy, thereby ensuring the stability and safety of engineering structures and equipment.

[0003] In existing technologies, commonly used vibration control devices are mostly designed based on traditional damping principles or elastic deformation principles. Among them, damping devices typically utilize the viscous resistance generated during the flow of liquids or gases to dissipate vibration energy. Their core structure generally includes a cylinder, a piston, and a damping medium. When the piston moves within the cylinder, the damping medium flows through specific channels to generate damping force. Elastic devices, on the other hand, mainly rely on the deformation of elastic elements such as springs to store and release energy in order to buffer vibration impacts.

[0004] However, existing devices have significant limitations in practical applications. For example, when high-rise buildings experience multi-directional strong wind vibrations, traditional devices often can only control vibrations in a single horizontal direction, making it difficult to cope with complex multi-directional vibrations. Furthermore, their ability to suppress vertical vibrations is weak because their structural design lacks adaptability to multi-dimensional vibrations and cannot flexibly adjust to match vibration energy in different directions. Simultaneously, in the low-frequency vibration control of precision instruments, existing devices are susceptible to resonance, leading to a significant decrease in vibration control effectiveness and even amplification of vibrations. Therefore, this invention provides a vibration control device based on metamaterial multifunctional coupling to address the shortcomings of existing technologies. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a vibration control device based on metamaterial multifunctional coupling, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a vibration control device based on metamaterial multifunctional coupling, comprising a top base, four damping mechanisms, and four bases. The bottom of the top base has four mounting slots. One end of each damping mechanism is located inside the mounting slot, and the other end of each damping mechanism is provided with a foot. Contact columns are fixedly connected to both outer sides of each foot. The outer side of each base has a mounting slot and a placement slot. The outer side of each foot is located inside the mounting slot. The outer side of each contact column is rotatably connected to the inner side of the placement slot. An elastic auxiliary mechanism and a rigid adjustment mechanism are provided on the outer side of each damping mechanism.

[0007] Preferably, the damping mechanism includes a cylinder body, the inside of which is provided with two guide seals, and a connecting cylinder is fixedly connected to the inner side of one end of the cylinder body, and one end of the connecting cylinder is rotatably connected to the inner side of the mounting groove.

[0008] Preferably, a sliding rod is slidably connected to the through hole at the other end of the cylinder, the outer side of the sliding rod is slidably connected to the inner side of the piston, and the outer side of one of the guide seals is in contact with the other end of the connecting cylinder.

[0009] Preferably, one end of the sliding rod is fixedly connected to one end of the base, and two fluid flow holes are provided inside the piston.

[0010] Preferably, the elastic auxiliary mechanism includes a mounting ring, which is fixedly connected to the outside of the cylinder body. Both outer sides of the mounting ring are fixedly connected to diagonal rods, and one end of each diagonal rod is fixedly connected to a connecting seat.

[0011] Preferably, a multi-stage telescopic rod is rotatably connected to the inner side of the first connecting seat, and a second connecting seat is rotatably connected to one end of the multi-stage telescopic rod.

[0012] Preferably, the multi-stage telescopic rod is fitted with a spring, and the two ends of the spring are fixedly connected to connecting seat one and connecting seat two, respectively.

[0013] Preferably, the rigid adjustment mechanism includes a mounting plate and a mounting bracket. The outer side of the mounting plate is fixedly connected to the outer side of the mounting ring, and the mounting bracket is fixedly connected to the outer side of the base. The outer side of the mounting bracket is fixedly connected to the outer side of the connecting seat.

[0014] Preferably, a motor is mounted on the outer side of the mounting bracket, and a second cylindrical gear is fixedly connected to the output end of the motor. A lead screw is threaded on the inner side of the mounting bracket, and a first cylindrical gear is fixedly connected to one end of the lead screw. The first cylindrical gear meshes with the second cylindrical gear.

[0015] Preferably, the other end of the lead screw passes through the internal through hole of the mounting plate and is fixedly connected to a buffer disc, a buffer pad is fixedly connected to the outer side of the mounting plate, and the outer side of the lead screw is slidably connected to the inner side of the buffer pad.

[0016] This invention provides a vibration control device based on metamaterial multifunctional coupling. It has the following beneficial effects:

[0017] 1. The vibration control device of the present invention can respond to vibration in multiple dimensions. Through the coordinated cooperation of multiple structures, it can not only eliminate energy for vibration in different directions in the horizontal direction, but also play a role in the vertical direction due to the inclined design. Combined with the energy consumption of damping fluid flow and the enhanced buffering effect of the elastic auxiliary mechanism, it effectively improves the comprehensiveness and effectiveness of vibration control.

[0018] 2. The device of the present invention has good adaptability and vibration isolation capability. By changing the magnitude of the rigid force through the rigid adjustment mechanism, it can flexibly avoid the resonance range. Furthermore, the buffer component based on metamaterial can generate a bandgap effect at low frequencies, allowing the device to function stably under different vibration scenarios and improving the reliability of vibration control. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a top view of the present invention;

[0021] Figure 3 This is a front view of the present invention;

[0022] Figure 4 This is a schematic diagram of the elastic auxiliary mechanism of the present invention;

[0023] Figure 5 This is a schematic diagram of the rigid adjustment mechanism of the present invention;

[0024] Figure 6 for Figure 4 Enlarged view of point A in the middle;

[0025] Figure 7 This is a schematic diagram of the damping mechanism of the present invention;

[0026] Figure 8 This is a schematic diagram of the liquid flow hole structure of the present invention.

[0027] The components are as follows: 1. Top seat; 2. Mounting groove one; 3. Damping mechanism; 301. Cylinder body; 302. Connecting cylinder; 303. Guide seal; 304. Sliding rod; 305. Piston; 306. Fluid flow hole; 4. Elastic auxiliary mechanism; 401. Mounting ring; 402. Diagonal rod; 403. Connecting seat one; 404. Multi-stage telescopic rod; 405. Spring; 406. Connecting seat two; 5. Rigid adjustment mechanism; 501. Mounting plate; 502. Mounting bracket; 503. Lead screw; 504. Cylindrical gear one; 505. Motor; 506. Cylindrical gear two; 507. Buffer pad; 508. Buffer plate; 6. Base; 7. Mounting groove two; 8. Placement groove; 9. Foot; 10. Contact post. Detailed Implementation

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see the appendix Figure 1 - Appendix Figure 8This invention provides a vibration control device based on metamaterial multifunctional coupling, including a top seat 1, four damping mechanisms 3 and four bases 6. The bottom of the top seat 1 has four mounting slots 2. One end of the damping mechanism 3 is located inside the mounting slot 2, and the other end of the damping mechanism 3 is provided with a foot 9. Contact columns 10 are fixedly connected to both sides of the foot 9. The outer side of the base 6 has a mounting slot 7 and a placement slot 8. The outer side of the foot 9 is located inside the mounting slot 7. The outer side of the contact column 10 is rotatably connected to the inner side of the placement slot 8 so that when vibration occurs, the foot 9 can rotate in the mounting slot 7 with the contact column 10 as the axis to adapt to vibration impacts in different directions. The damping mechanism 3 is equipped with an elastic auxiliary mechanism 4 and a rigid adjustment mechanism 5 on its outer side. The damping mechanism 3 includes a cylinder 301. The cylinder 301 has two guide seals 303 inside, which are used to seal the damping fluid inside the cylinder 301 and to guide the movement of the internal components. A connecting cylinder 302 is fixedly connected to the inner side of one end of the cylinder 301. One end of the connecting cylinder 302 is rotatably connected to the inner side of the mounting groove 2, so that the damping mechanism 3 can rotate relative to the top seat 1, enhancing the adaptability of the device to multi-directional vibration. The other end of the cylinder 301 is slidably connected at the through hole. There is a sliding rod 304, the outer side of which is slidably connected to the inner side of the piston 305. The outer side of one of the guide seals 303 is in contact with the other end of the connecting cylinder 302, which further improves the sealing of the cylinder 301 and prevents the damping fluid from leaking. One end of the sliding rod 304 is fixedly connected to one end of the foot 9. When vibration occurs, the rotation of the foot 9 will drive the sliding rod 304 to slide inside the cylinder 301. Two fluid flow holes 306 are opened inside the piston 305 to allow the damping fluid to flow when the piston 305 moves, thereby generating damping force to consume vibration energy.

[0030] The elastic auxiliary mechanism 4 includes a mounting ring 401, which is fixedly connected to the outside of the cylinder body 301. Diagonal rods 402 are fixedly connected to both sides of the mounting ring 401. One end of each diagonal rod 402 is fixedly connected to a connecting seat 403. A multi-stage telescopic rod 404 is rotatably connected to the inner side of the connecting seat 403. One end of the multi-stage telescopic rod 404 is rotatably connected to a connecting seat 406. A spring 405 is sleeved on the outside of the multi-stage telescopic rod 404. Both ends of the spring 405 are fixedly connected to the connecting seat 403 and the connecting seat 406, respectively. When the damping mechanism 3 is working, the spring 405 can assist in buffering vibration through its own elastic deformation. The multi-stage telescopic rod 404 can extend and retract with the vibration amplitude, working in conjunction with the spring 405 to improve the overall buffering effect of the device.

[0031] The rigid adjustment mechanism 5 includes a mounting plate 501 and a mounting bracket 502. The outer side of the mounting plate 501 is fixedly connected to the outer side of the mounting ring 401, and the mounting bracket 502 is fixedly connected to the outer side of the base 9. The outer side of the mounting bracket 502 is fixedly connected to the outer side of the connecting seat 406. A motor 505 is mounted on the outer side of the mounting bracket 502. A cylindrical gear 506 is fixedly connected to the output end of the motor 505. A lead screw 503 is threaded on the inner side of the mounting bracket 502. A cylindrical gear 504 is fixedly connected to one end of the lead screw 503. The cylindrical gear 504 meshes with the cylindrical gear 506. The other end of the lead screw 503 passes through the internal through hole of the mounting plate 501 and is fixedly connected to... The buffer plate 508 and the outer side of the mounting plate 501 are fixedly connected to the buffer pad 507. The outer side of the lead screw 503 is slidably connected to the inner side of the buffer pad 507. When resonance needs to be avoided, the motor 505 is started to drive the second cylindrical gear 506 to rotate. The second cylindrical gear 506 drives the first cylindrical gear 504 to rotate, thereby causing the lead screw 503 to rotate and move within the mounting bracket 502, changing the distance between the buffer plate 508 and the buffer pad 507, thereby adjusting the activity space of the sliding rod 304, thus changing the magnitude of the rigidity force. At the same time, both the buffer pad 507 and the buffer plate 508 are based on metamaterials, which can generate a band gap effect at low frequencies, effectively blocking the propagation of vibration waves.

[0032] Specifically, firstly, the entire device is installed between two floors. The top of the top seat 1 is fixedly connected to the bottom of the upper building, while the four bases 6 are securely connected to the top of the lower building. This installation method allows the device to fully absorb vibrations transmitted between the upper and lower floors, providing a stable foundation for subsequent vibration control. When vibration occurs between the floors, the vibration energy causes relative displacement between the top seat 1 and the bases 6, which in turn drives the sliding rod 304 to slide within the cylinder 301. The sliding of the sliding rod 304 synchronously drives the piston 305 to move inside the cylinder 301. At this time, the damping fluid inside the cylinder 301 is forced to pass through the piston 305. The two flow holes 306 on piston 305 allow fluid to flow on both sides of the piston. During flow, the damping fluid experiences viscous resistance due to the flow-limiting effect of the flow holes 306. This resistance effectively dissipates vibration energy, providing initial buffering and vibration reduction. Furthermore, the four damping mechanisms 3 of the device correspond to different horizontal directions, specifically eliminating vibration energy in each direction. The damping mechanism 3 also features an inclined design, which, compared to traditional damping structures that can only handle vibrations in a single direction, allows for flexible multi-directional vibration response in the horizontal direction and absorbs vibration energy in the vertical direction through changes in its tilt angle, significantly improving the device's vibration control. Scope; In addition, under the synergistic effect of the elastic auxiliary mechanism 4, when the damping mechanism 3 is working, the spring 405 will undergo elastic deformation with vibration, and buffer the vibration impact force through its own elastic force. The multi-stage telescopic rod 404 will expand and contract in coordination with the deformation of the spring 405, ensuring that the spring 405 always maintains a stable elastic action direction, thereby making the buffering effect of the damping mechanism 3 more gentle and lasting; To avoid resonance, the motor 505 on the outside of the mounting bracket 502 can be started. After the motor 505 is working, it drives the second cylindrical gear 506 at the output end to rotate, and the second cylindrical gear 506 will drive the first cylindrical gear 504 meshing with it to rotate. The movement causes the lead screw 503 to rotate within the mounting bracket 502 and move along the axial direction. The movement of the lead screw 503 changes the distance between the buffer disc 508 and the buffer pad 507 on the mounting plate 501. This change in distance directly adjusts the movement space of the sliding rod 304 within the cylinder 301, thereby changing the magnitude of the rigid force of the device. This allows the device to adapt to different vibration frequencies and effectively avoid the resonance range. At the same time, both the buffer pad 507 and the buffer disc 508 are made of metamaterials, which can generate a specific bandgap effect in low-frequency vibration environments, acting as a barrier to block the further propagation of vibration waves and further enhancing the vibration control capability of the device.

[0033] Working principle: First, the entire device is installed between two floors. The top of the top seat 1 connects to the bottom of the upper floor, and the four bases 6 connect to the top of the lower floor. When vibration occurs between the floors, the sliding rod 304 drives the piston 305 to slide. The damping fluid inside the cylinder 301 then moves through the two flow holes 306 to both sides of the piston 305, thus eliminating vibration energy. Furthermore, four sets of damping mechanisms 3 can eliminate vibration energy in different horizontal directions, and the damping mechanisms 3 are designed with an incline, which, compared to traditional damping structures, does not... It can respond to multiple directions in the horizontal direction and also eliminate vibration energy in the vertical direction. In addition, with the assistance of the elastic auxiliary mechanism 4, the damping mechanism 3 can have a better buffering effect and avoid resonance. The motor 505 can be started to drive the cylindrical gear 2 506 to rotate, which in turn causes the cylindrical gear 1 504 to drive the lead screw 503 to rotate. This can change the activity space of the sliding rod 304, thereby changing the magnitude of the rigidity. The buffer pad 507 and the buffer disk 508 are both based on metamaterials, which generate a band gap effect at low frequencies to block the propagation of vibration waves.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibration control device based on metamaterial multifunctional coupling, characterized in that, The device includes a top seat (1), four damping mechanisms (3) and four bases (6). The bottom of the top seat (1) has four mounting slots (2). One end of the damping mechanism (3) is located inside the mounting slot (2). The other end of the damping mechanism (3) is provided with a foot (9). Contact posts (10) are fixedly connected to both sides of the foot (9). The outer side of the base (6) has a mounting slot (7). The outer side of the base (6) has a placement slot (8). The outer side of the foot (9) is located inside the mounting slot (7). The outer side of the contact post (10) is rotatably connected to the inner side of the placement slot (8). The outer side of the damping mechanism (3) is provided with an elastic auxiliary mechanism (4) and a rigid adjustment mechanism (5).

2. The vibration control device based on metamaterial multifunctional coupling according to claim 1, characterized in that, The damping mechanism (3) includes a cylinder (301), and two guide seals (303) are provided inside the cylinder (301). A connecting cylinder (302) is fixedly connected to the inner side of one end of the cylinder (301), and one end of the connecting cylinder (302) is rotatably connected to the inner side of the mounting groove (2).

3. The vibration control device based on metamaterial multifunctional coupling according to claim 2, characterized in that, A sliding rod (304) is slidably connected to the through hole at the other end of the cylinder (301). The outer side of the sliding rod (304) is slidably connected to the inner side of the piston (305). The outer side of one of the guide seals (303) is in contact with the other end of the connecting cylinder (302).

4. The vibration control device based on metamaterial multifunctional coupling according to claim 3, characterized in that, One end of the sliding rod (304) is fixedly connected to one end of the base (9), and two fluid flow holes (306) are opened inside the piston (305).

5. The vibration control device based on metamaterial multifunctional coupling according to claim 1, characterized in that, The elastic auxiliary mechanism (4) includes a mounting ring (401), which is fixedly connected to the outside of the cylinder body (301). Both sides of the outer side of the mounting ring (401) are fixedly connected to a diagonal rod (402), and one end of the diagonal rod (402) is fixedly connected to a connecting seat (403).

6. The vibration control device based on metamaterial multifunctional coupling according to claim 5, characterized in that, The inner side of the first connecting seat (403) is rotatably connected to a multi-stage telescopic rod (404), and one end of the multi-stage telescopic rod (404) is rotatably connected to a second connecting seat (406).

7. The vibration control device based on metamaterial multifunctional coupling according to claim 6, characterized in that, The multi-stage telescopic rod (404) is fitted with a spring (405), and the two ends of the spring (405) are fixedly connected to the first connecting seat (403) and the second connecting seat (406) respectively.

8. The vibration control device based on metamaterial multifunctional coupling according to claim 1, characterized in that, The rigid adjustment mechanism (5) includes a mounting plate (501) and a mounting bracket (502). The outer side of the mounting plate (501) is fixedly connected to the outer side of the mounting ring (401), and the mounting bracket (502) is fixedly connected to the outer side of the base (9). The outer side of the mounting bracket (502) is fixedly connected to the outer side of the connecting seat (406).

9. The vibration control device based on metamaterial multifunctional coupling according to claim 8, characterized in that, A motor (505) is mounted on the outside of the mounting bracket (502). A second cylindrical gear (506) is fixedly connected to the output end of the motor (505). A lead screw (503) is threaded on the inside of the mounting bracket (502). A first cylindrical gear (504) is fixedly connected to one end of the lead screw (503). The first cylindrical gear (504) meshes with the second cylindrical gear (506).

10. The vibration control device based on metamaterial multifunctional coupling according to claim 9, characterized in that, The other end of the lead screw (503) passes through the internal through hole of the mounting plate (501) and is fixedly connected to a buffer plate (508). A buffer pad (507) is fixedly connected to the outside of the mounting plate (501), and the outside of the lead screw (503) is slidably connected to the inside of the buffer pad (507).

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