Shock absorption device based on magnetorheological elastomer assembly and control method thereof

Abstract

The present invention proposes a shock-absorbing device based on a magnetorheological elastomer assembly and a control method thereof. The shock-absorbing device based on the magnetorheological elastomer assembly comprises a base, a top cover, a storage plate, a vertical magnetorheological elastic mechanism, a transverse magnetorheological elastic mechanism, and an elastic member. The vertical magnetorheological elastic mechanism is installed on the side of the base. The vertical magnetorheological elastic mechanism comprises a vertical magnetorheological elastomer assembly and a coil located outside the vertical magnetorheological elastomer assembly. The transverse magnetorheological elastic mechanism comprises a transverse magnetorheological elastomer assembly and a coil located outside the vertical magnetorheological elastomer assembly. The bottom end surface of the top cover is elastically connected to the top end surface of the base via an elastic member. A side panel extends downward from the edge of the top cover. The two ends of the vertical magnetorheological elastomer assembly are respectively bonded to the side panel and the side wall of the base. The storage plate is located above the top cover. The transverse magnetorheological elastic mechanism is located in the gap between the top cover and the storage plate. The two ends of the transverse magnetorheological elastomer assembly are respectively bonded to the top cover and the storage plate.

Description

Technical Field

[0001] The present invention relates to the technical field of shock absorption, and in particular to a shock absorption device based on a magnetorheological elastomer component and a control method thereof. Background Art

[0002] Currently, most dampers are viscoelastic. The main factors affecting their energy dissipation performance are temperature, frequency, and strain amplitude. The energy dissipation capacity of viscoelastic dampers increases with the excitation frequency, and each damper has its own operating range. Viscoelastic dampers primarily use traditional rubber materials. Even with numerous structural optimizations, their fixed stiffness has not been effectively addressed. When the earthquake frequency is close to the natural frequency of the structure, resonance is likely to occur. In this case, traditional diagonal brace dampers may not only fail to achieve a shock absorption effect, but may even cause more serious damage.

[0003] CN112196939 proposes an intelligent seismic isolation bearing for cultural relics using a magnetorheological elastomer assembly. This bearing undergoes oblique shear motion under earthquake conditions. Therefore, only the vertical component of this motion contributes to vertical energy dissipation, failing to utilize the full performance of the third magnetorheological elastomer assembly. Furthermore, the bearing's vertical and horizontal vibration isolation functions share a common magnetic circuit, making independent control impossible. Summary of the Invention

[0004] The main purpose of the present invention is to provide a shock absorbing device based on a magnetorheological elastomer assembly and a control method thereof, aiming to improve the utilization rate of the magnetorheological elastomer and facilitate separate control.

[0005] To achieve the above-mentioned object, the present invention provides a shock absorbing device based on a magnetorheological elastomer assembly, comprising a base, a top cover, a storage plate, a vertical magnetorheological elastic mechanism, a transverse magnetorheological elastic mechanism and an elastic member, wherein:

[0006] A vertical magnetorheological elastic mechanism is installed on the side of the base, which includes a vertical magnetorheological elastic mechanism and a coil located outside the vertical magnetorheological elastic mechanism. The transverse magnetorheological elastic mechanism includes a transverse magnetorheological elastic mechanism and a coil located outside the vertical magnetorheological elastic mechanism. The bottom end surface of the top cover is elastically connected to the top end surface of the base through an elastic member. A side panel extends downward from the edge of the top cover. The two ends of the vertical magnetorheological elastic mechanism are respectively bonded to the side panel and the side wall of the base. The storage plate is located above the top cover, and the transverse magnetorheological elastic mechanism is located in the gap between the top cover and the storage plate. The two ends of the transverse magnetorheological elastic mechanism are respectively bonded to the top cover and the storage plate.

[0007] Preferably, the vertical magnetorheological elastic mechanism and the transverse magnetorheological elastic mechanism further include a magnetic conductive baffle located outside the coil.

[0008] Preferably, a peripheral edge extends downward from the edge of the storage plate, and a buffer pad is bonded to the side of the peripheral edge close to the transverse magnetorheological elastic mechanism.

[0009] Preferably, a support member is protruding from the edge of the top cover, and a sliding ball is installed on the support member to contact the bottom end surface of the storage plate.

[0010] Preferably, the base includes an upper base with a rectangular parallelepiped structure and a support with a prism structure located below the upper base, and a vertical magnetorheological elastic mechanism is provided on each side wall of the upper base.

[0011] Preferably, the transverse magnetorheological elastic body component of the transverse magnetorheological elastic mechanism is a cylindrical structure, and the magnetic conductive baffle matched with the transverse magnetorheological elastic mechanism is a sleeve-shaped structure.

[0012] Preferably, the elastic member is a spring.

[0013] Preferably, at least two transverse magnetorheological elastic mechanisms are installed between the storage plate and the top cover; the steel material in the steel plate stacking of the transverse magnetorheological elastic body component and the vertical magnetorheological elastic body component is silicon steel.

[0014] The present invention further proposes a control method for the above-mentioned shock absorbing device based on the magnetorheological elastomer assembly, comprising the following steps:

[0015] The cultural relic cabinet is placed above the shock-absorbing device based on the magnetorheological elastomer assembly. A horizontal acceleration sensor and a vertical acceleration sensor are set in the cultural relic cabinet to detect the horizontal acceleration and vertical acceleration of the cultural relic cabinet;

[0016] When the cultural relics cabinet is subjected to an earthquake, the horizontal force on the shock-absorbing device causes the horizontal magnetorheological elastic mechanism to be subjected to horizontal shear force. The vertical force on the shock-absorbing device causes the base and the top cover to produce vertical relative displacement, causing the vertical magnetorheological elastic mechanism to be subjected to vertical shear force, thus achieving the effect of vertical seismic isolation.

[0017] According to the horizontal acceleration and vertical acceleration measured by the cultural relics cabinet, semi-active control is used to change the current of the corresponding coils of the transverse magnetorheological elastic mechanism and the vertical magnetorheological elastic mechanism to change the magnetic field size, thereby changing the damping and stiffness of the transverse magnetorheological elastic mechanism and the vertical magnetorheological elastic mechanism to avoid resonance with the earthquake.

[0018] Preferably, the step of changing the magnetic field size by using semi-active control to change the currents of the corresponding coils of the transverse magnetorheological elastic mechanism and the vertical magnetorheological elastic mechanism according to the horizontal acceleration and vertical acceleration measured by the cultural relics cabinet specifically includes:

[0019] After receiving the earthquake warning information, the sensor starts to enter the working mode, monitoring the movement state of the cultural relics cabinet in real time to obtain the horizontal acceleration and vertical acceleration;

[0020] The monitored horizontal and vertical acceleration information is analyzed by a processor, and the trained AI algorithm is used to analyze and process the horizontal and vertical acceleration information in real time to obtain the time-varying current value that can minimize the structural response and maximize energy consumption;

[0021] According to the obtained time-varying current value, the coils of the vertical magnetorheological elastic mechanism and the transverse magnetorheological elastic mechanism are controlled to generate currents of corresponding magnitudes, thereby changing the physical properties of the vertical magnetorheological elastic mechanism and the transverse magnetorheological elastic mechanism, thereby minimizing the response of the cultural relics cabinet and minimizing the damage to the cultural relics on the cultural relics cabinet caused by the earthquake.

[0022] The shock absorbing device based on the magnetorheological elastomer assembly proposed in the present invention has the following beneficial effects:

[0023] 1. Since the lateral vibration isolation and horizontal vibration isolation are controlled separately by magnetic circuits, the vertical energy dissipation effect can be fully utilized with higher efficiency. Therefore, the deformation that can be tolerated is also greater, which can effectively prevent the vertical component of the earthquake;

[0024] 2. By separating the magnetic circuit control of lateral vibration isolation and horizontal vibration isolation, the improved device's vertical vibration isolation and horizontal vibration isolation are two independently operated magnetic circuit systems, which can be individually and accurately controlled, with higher control efficiency and more targeted control;

[0025] 3. The shock absorption device based on the magnetorheological elastomer assembly has the advantages of simple structure and strong deformation ability;

[0026] 4. High flexibility. The number of coil turns and the material ratio of the magnetorheological elastomer component can be adjusted according to different cultural relics, so as to obtain a more appropriate damping control range. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the cross-sectional structure of the shock absorbing device based on the magnetorheological elastomer assembly of the present invention from one perspective;

[0028] Figure 2 for Figure 1 A schematic cross-sectional view of a shock absorbing device based on a magnetorheological elastomer assembly is shown;

[0029] Figure 3 Schematic diagram of the top view of the shock absorbing device based on the magnetorheological elastomer assembly of the present invention;

[0030] Figure 4 Schematic diagram of the front structure of the base of the shock absorbing device based on the magnetorheological elastomer assembly of the present invention;

[0031] Figure 5 Schematic diagram of the top structure of the top cover in the shock absorbing device based on the magnetorheological elastomer assembly of the present invention;

[0032] Figure 6 Schematic diagram of the front structure of the top cover of the shock absorbing device based on the magnetorheological elastomer assembly of the present invention;

[0033] Figure 7 Schematic diagram of the magnetic circuit of the shock absorbing device based on the magnetorheological elastomer assembly of the present invention.

[0034] In the figure, 1-base, 2-top cover, 3-spring, 4-enameled coil, 5-vertical magnetorheological elastomer assembly, 6-magnetic baffle, 7-buffer pad, 8-sliding ball, 9-storage plate, 10-transverse magnetorheological elastomer assembly.

[0035] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0036] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] It should be noted that in the description of the present invention, the terms "transverse," "longitudinal," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] The present invention provides a shock absorbing device based on a magnetorheological elastomer component.

[0039] Reference Figures 1 to 7 In this preferred embodiment, a shock absorbing device based on a magnetorheological elastomer assembly includes a base 1, a top cover 2, a storage plate 9, a vertical magnetorheological elastic mechanism, a transverse magnetorheological elastic mechanism and an elastic member, wherein:

[0040] A vertical magnetorheological elastic mechanism is installed on the side of the base 1, which includes a vertical magnetorheological elastic mechanism 5 and a coil located outside the vertical magnetorheological elastic mechanism 5 (there is a gap between the coil and the vertical magnetorheological elastic mechanism 5 to provide deformation space for the vertical magnetorheological elastic mechanism 5), and a transverse magnetorheological elastic mechanism includes a transverse magnetorheological elastic mechanism 10 and a coil located outside the vertical magnetorheological elastic mechanism 5 (there is also a gap between the coil and the transverse magnetorheological elastic mechanism 10, for the same reason as above). The bottom end surface of the top cover 2 is elastically connected to the top surface of the base 1 through an elastic member, and a side panel extends downward from the edge of the top cover 2. The two ends of the vertical magnetorheological elastic mechanism 5 are respectively bonded to the side panel and the side wall of the base 1. The storage plate 9 is located above the top cover 2, and the transverse magnetorheological elastic mechanism is located in the gap between the top cover 2 and the storage plate 9. The two ends of the transverse magnetorheological elastic mechanism 10 are respectively bonded to the top cover 2 and the storage plate 9.

[0041] The coil is wound with enameled copper wire and connected to an external power source through holes in the sleeve. The magnetorheological elastomer assembly consists of a laminated silicon steel sheet and a magnetorheological elastomer (MRE). The MRE is an existing intelligent material made from a mixture of rubber and carbonyl iron powder. The base 1 provides a connection platform for the vertical MRE mechanism and also ensures uniform magnetic field distribution. The upper portion of the storage plate 9 is used to store artifacts.

[0042] Further, refer to Figure 1 and Figure 2 The vertical magnetorheological elastic mechanism and the transverse magnetorheological elastic mechanism further include a magnetic baffle 6 located outside the coil (each vertical magnetorheological elastic mechanism and each transverse magnetorheological elastic mechanism corresponds to its own magnetic baffle 6).

[0043] There is a gap between the magnetic baffle 6 of the vertical magnetorheological elastic mechanism and the side plate, and the two are not directly connected, so that the magnetic circuit is closed. The magnetic baffle 6 can be welded to the base 1 and the top cover 2.

[0044] Further, refer to Figure 1 The edge of the storage plate 9 extends downward, and a cushioning pad 7 is bonded to the side of the edge closest to the transverse magnetorheological elastic mechanism. During a strong earthquake, the cushioning pad 7 absorbs some of the energy from the collision between the storage plate 9 and the top cover 2, while also preventing damage to the transverse magnetorheological elastic mechanism from lateral forces.

[0045] Further, refer to Figure 1 A support member is protruding from the edge of the top cover 2 (which can be connected to the top cover 2 by welding), and a sliding ball 8 is installed on the support member to contact the bottom end surface of the storage plate 9.

[0046] In this embodiment, by providing the sliding ball 8, on the one hand, the placement plate 9 can be restricted to horizontal movement by contact with the placement plate 9, thereby preventing the placement plate 9 from overturning; on the other hand, the sliding ball 8 can provide sufficient vertical bearing capacity and prevent the transverse magnetorheological elastic mechanism from being deformed by the gravity of the upper object, thereby affecting its working effect.

[0047] Specifically, in this embodiment, referring to Figure 4 The base 1 comprises a rectangular upper base 1 and a pyramidal support below it. Each sidewall of the upper base 1 is equipped with a vertical magnetorheological elastic mechanism (two vertical magnetorheological elastic mechanisms are provided on each sidewall for illustration purposes). This structure provides a highly stable support for the artifact cabinet above. Furthermore, its sides allow for the installation of multiple vertical magnetorheological elastic mechanisms, enhancing its vertical deformation capability.

[0048] In this embodiment, refer to Figure 5 The transverse magnetorheological elastic body component 10 of the transverse magnetorheological elastic mechanism is a cylindrical structure, the magnetic baffle 6 of the transverse magnetorheological elastic mechanism is a sleeve-shaped structure, and the coil of the transverse magnetorheological elastic mechanism is also sleeve-shaped.

[0049] Specifically, refer to Figure 4 The transverse magnetorheological elastic body component 10 of the vertical magnetorheological elastic mechanism is a rectangular parallelepiped structure, and the magnetic conductive baffle 6 matched with the vertical magnetorheological elastic mechanism is a square tube structure.

[0050] In this embodiment, the elastic member is a spring 3. To ensure a reliable elastic connection between the top cover 2 and the base 1, at least three elastic members are provided (four are used as an example in this embodiment). The spring 3 can provide sufficient vertical initial stiffness to bear the weight of the object on the top cover 2.

[0051] Furthermore, at least two transverse magnetorheological elastic mechanisms are installed between the storage plate 9 and the top cover 2. In this embodiment, four transverse magnetorheological elastic mechanisms are provided as an example for description.

[0052] The steel used in the steel plate laminates of the transverse magnetorheological elastomer assembly 10 and the vertical magnetorheological elastomer assembly 5 is silicon steel. The base 1, top cover 2, spring 3, magnetic baffle 6, sliding ball 8 and storage plate 9 are all made of general engineering steel.

[0053] The working process of this shock-absorbing device based on the magnetorheological elastomer assembly is as follows: the base 1 and the top cover 2 move vertically relative to each other, causing the vertical magnetorheological elastic mechanism to perform vertical shear movement, and the top cover 2 and the storage plate 9 move horizontally relative to each other, causing the transverse magnetorheological elastic mechanism to perform horizontal shear movement. The magnetic induction intensity of the transverse magnetorheological elastic mechanism and the vertical magnetorheological elastic mechanism can be changed by adjusting the current in the enameled coil 4. The damping and stiffness of the transverse magnetorheological elastic mechanism and the vertical magnetorheological elastic mechanism are adjusted in real time according to the monitoring data of the sensor to avoid resonance and dissipate the energy transmitted from the ground to achieve the effect of shock reduction and isolation.

[0054] The use process of the shock absorbing device based on the magnetorheological elastomer assembly is as follows:

[0055] The cultural relic cabinet is placed above the shock-absorbing device based on the magnetorheological elastomer assembly. A horizontal acceleration sensor and a vertical acceleration sensor are set in the cultural relic cabinet to detect the horizontal acceleration and vertical acceleration of the cultural relic cabinet;

[0056] When the cultural relics cabinet is subjected to an earthquake, the shock-absorbing device is subjected to a horizontal force, which causes the transverse magnetorheological elastic mechanism to be subjected to a horizontal shear force. The vertical force applied to the shock-absorbing device causes the base 1 and the top cover 2 to produce a vertical relative displacement, causing the vertical magnetorheological elastic mechanism to be subjected to a vertical shear force, thereby achieving a vertical seismic isolation effect.

[0057] According to the horizontal acceleration and vertical acceleration measured by the cultural relics cabinet, semi-active control is used to change the current of the corresponding coils of the transverse magnetorheological elastic mechanism and the vertical magnetorheological elastic mechanism to change the magnetic field size, thereby changing the damping and stiffness of the transverse magnetorheological elastic mechanism and the vertical magnetorheological elastic mechanism to avoid resonance with the earthquake.

[0058] The shock absorbing device based on the magnetorheological elastomer assembly proposed in this embodiment has the following beneficial effects:

[0059] 1. Since the lateral vibration isolation and horizontal vibration isolation are controlled separately by magnetic circuits, the vertical energy dissipation effect can be fully utilized with higher efficiency. Therefore, the deformation that can be tolerated is also greater, which can effectively prevent the vertical component of the earthquake;

[0060] 2. By separating the magnetic circuit control of lateral vibration isolation and horizontal vibration isolation, the improved device's vertical vibration isolation and horizontal vibration isolation are two independently operated magnetic circuit systems, which can be individually and accurately controlled, with higher control efficiency and more targeted control;

[0061] 3. The shock absorption device based on the magnetorheological elastomer assembly has the advantages of simple structure and strong deformation ability;

[0062] 4. High flexibility. The number of coil turns and the material ratio of the magnetorheological elastomer component can be adjusted according to different cultural relics, so as to obtain a more appropriate damping control range.

[0063] The present invention further proposes a control method for a shock absorbing device based on a magnetorheological elastomer assembly.

[0064] In this preferred embodiment, a control method for the shock absorbing device based on the magnetorheological elastomer assembly described above includes the following steps:

[0065] Step S10: placing the cultural relic cabinet on top of the shock absorbing device based on the magnetorheological elastomer assembly, and providing a horizontal acceleration sensor and a vertical acceleration sensor in the cultural relic cabinet to detect the horizontal acceleration and vertical acceleration of the cultural relic cabinet;

[0066] Step S10: When the cultural relic cabinet is subjected to an earthquake, the shock-absorbing device is subjected to a horizontal force, causing the transverse magnetorheological elastic mechanism to be subjected to a horizontal shear force. The vertical force applied to the shock-absorbing device causes the base 1 and the top cover 2 to produce a vertical relative displacement, causing the vertical magnetorheological elastic mechanism to be subjected to a vertical shear force, thereby achieving a vertical seismic isolation effect.

[0067] Step S30, based on the horizontal acceleration and vertical acceleration measured by the cultural relics cabinet, semi-active control is used to change the current of the corresponding coils of the transverse magnetorheological elastic mechanism and the vertical magnetorheological elastic mechanism to change the magnetic field size, thereby changing the damping and stiffness of the transverse magnetorheological elastic mechanism and the vertical magnetorheological elastic mechanism to avoid resonance with the earthquake.

[0068] Specifically, in step S30, the step of using semi-active control to change the current magnitudes of the corresponding coils of the transverse magnetorheological elastic mechanism and the vertical magnetorheological elastic mechanism to change the magnetic field magnitude according to the horizontal acceleration and vertical acceleration measured by the cultural relics cabinet specifically includes:

[0069] After receiving the earthquake warning information, the sensor starts to enter the working mode, monitoring the movement state of the cultural relics cabinet in real time to obtain the horizontal acceleration and vertical acceleration;

[0070] The monitored horizontal and vertical acceleration information is analyzed by a processor, and the trained AI algorithm is used to analyze and process the horizontal and vertical acceleration information in real time to obtain the time-varying current value that can minimize the structural response and maximize energy consumption;

[0071] According to the obtained time-varying current value, the coils of the vertical magnetorheological elastic mechanism and the transverse magnetorheological elastic mechanism are controlled to generate currents of corresponding magnitudes, thereby changing the physical properties of the vertical magnetorheological elastic mechanism and the transverse magnetorheological elastic mechanism, thereby minimizing the response of the cultural relics cabinet and minimizing the damage to the cultural relics on the cultural relics cabinet caused by the earthquake.

[0072] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's description and drawings, or directly or indirectly applied to other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A shock absorbing device based on a magnetorheological elastomer assembly, characterized in that: It includes a base, a top cover, a storage plate, a vertical magnetorheological elastic mechanism, a transverse magnetorheological elastic mechanism and an elastic member, wherein: A vertical magnetorheological elastic mechanism is installed on the side of the base, which includes a vertical magnetorheological elastic mechanism and a coil located outside the vertical magnetorheological elastic mechanism. The transverse magnetorheological elastic mechanism includes a transverse magnetorheological elastic mechanism and a coil located outside the vertical magnetorheological elastic mechanism. The bottom end surface of the top cover is elastically connected to the top end surface of the base through an elastic member. A side panel extends downward from the edge of the top cover. The two ends of the vertical magnetorheological elastic mechanism are respectively bonded to the side panel and the side wall of the base. The storage plate is located above the top cover, and the transverse magnetorheological elastic mechanism is located in the gap between the top cover and the storage plate. The two ends of the transverse magnetorheological elastic mechanism are respectively bonded to the top cover and the storage plate.

2. The shock absorbing device based on the magnetorheological elastomer assembly according to claim 1, characterized in that: The vertical magnetorheological elastic mechanism and the transverse magnetorheological elastic mechanism further include a magnetic baffle located outside the coil.

3. The shock absorbing device based on the magnetorheological elastomer assembly according to claim 1, characterized in that: A peripheral edge is extended downward from the edge of the storage plate, and a buffer pad is bonded on a side of the peripheral edge close to the transverse magnetorheological elastic mechanism.

4. The shock absorbing device based on the magnetorheological elastomer assembly according to claim 1, characterized in that: A support member is protruding from the edge of the top cover, and a sliding ball is installed on the support member to contact the bottom end surface of the storage plate.

5. The shock absorbing device based on the magnetorheological elastomer assembly according to claim 1, characterized in that: The base comprises an upper base of a rectangular parallelepiped structure and a support of a prism structure located below the upper base. A vertical magnetorheological elastic mechanism is provided on each side wall of the upper base.

6. The shock absorbing device based on the magnetorheological elastomer assembly according to claim 2, characterized in that: The transverse magnetorheological elastic body component of the transverse magnetorheological elastic mechanism is a cylindrical structure, and the magnetic conductive baffle matched with the transverse magnetorheological elastic mechanism is a sleeve-shaped structure.

7. The shock absorbing device based on the magnetorheological elastomer assembly according to claim 1, characterized in that: The elastic member is a spring.

8. The shock absorbing device based on a magnetorheological elastomer assembly according to any one of claims 1 to 7, characterized in that: At least two transverse magnetorheological elastic mechanisms are installed between the storage plate and the top cover; the steel material in the steel plate stacking of the transverse magnetorheological elastic body component and the vertical magnetorheological elastic body component is silicon steel.

9. A control method for a shock absorbing device based on a magnetorheological elastomer assembly according to any one of claims 1 to 8, characterized in that: The following steps are involved: The cultural relic cabinet is placed above the shock-absorbing device based on the magnetorheological elastomer assembly. A horizontal acceleration sensor and a vertical acceleration sensor are set in the cultural relic cabinet to detect the horizontal acceleration and vertical acceleration of the cultural relic cabinet; When the cultural relics cabinet is subjected to an earthquake, the horizontal force on the shock-absorbing device causes the horizontal magnetorheological elastic mechanism to be subjected to horizontal shear force. The vertical force on the shock-absorbing device causes the base and the top cover to produce vertical relative displacement, causing the vertical magnetorheological elastic mechanism to be subjected to vertical shear force, thus achieving the effect of vertical seismic isolation. According to the horizontal acceleration and vertical acceleration measured by the cultural relics cabinet, semi-active control is used to change the current of the corresponding coils of the transverse magnetorheological elastic mechanism and the vertical magnetorheological elastic mechanism to change the magnetic field size, thereby changing the damping and stiffness of the transverse magnetorheological elastic mechanism and the vertical magnetorheological elastic mechanism to avoid resonance with the earthquake.

10. The control method of the shock absorbing device based on the magnetorheological elastomer assembly according to claim 9, characterized in that: The step of using semi-active control to change the currents of the corresponding coils of the transverse magnetorheological elastic mechanism and the vertical magnetorheological elastic mechanism to change the magnetic field size according to the horizontal acceleration and vertical acceleration measured by the cultural relics cabinet specifically includes: After receiving the earthquake warning information, the sensor starts to enter the working mode, monitoring the movement state of the cultural relics cabinet in real time to obtain the horizontal acceleration and vertical acceleration; The monitored horizontal and vertical acceleration information is analyzed by a processor, and the trained AI algorithm is used to analyze and process the horizontal and vertical acceleration information in real time to obtain the time-varying current value that can minimize the structural response and maximize energy consumption; According to the obtained time-varying current value, the coils of the vertical magnetorheological elastic mechanism and the transverse magnetorheological elastic mechanism are controlled to generate currents of corresponding magnitudes, thereby changing the physical properties of the vertical magnetorheological elastic mechanism and the transverse magnetorheological elastic mechanism, thereby minimizing the response of the cultural relics cabinet and minimizing the damage to the cultural relics on the cultural relics cabinet caused by the earthquake.

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