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A magnetorheological multi-stage adjustable inertial capacitance variable damping device

A magnetorheological and variable damping technology, which is applied in the direction of vibration suppression adjustment, shock absorbers, bridges, etc., can solve the problems of complex design structure, inability to realize real-time adjustment of inertia coefficient, and inability of magnetorheological fluid to flow, etc. To achieve the effect of inertial coefficient

Active Publication Date: 2021-08-27
EAST CHINA JIAOTONG UNIVERSITY
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Problems solved by technology

[0003] In the prior art, the inerter generally relies on an external hydraulic cylinder to change the fluidity of the magnetorheological fluid to achieve the special performance of the magnetorheological fluid, but such a design structure is relatively complicated, and the magnetorheological fluid may It is also impossible to achieve good flow, resulting in the inability to achieve precise real-time adjustment of the inertial coefficient, so it is very necessary to study a new type of magnetorheological inertial device

Method used

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  • A magnetorheological multi-stage adjustable inertial capacitance variable damping device

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Embodiment Construction

[0021] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0022] A magneto-rheological multi-stage adjustable inertia variable damping device provided by the present invention includes an outer sleeve 1, a first end cover 2, a second end cover 3, an outer sleeve 1, a first end cover 2 and a second end cover. The two end covers 3 form a built-in cavity 4, and the built-in cavity 4 includes a driving shear plate 5, a first driven shear plate 6, a second driven shear plate 7, a transmission shaft 8, a bearing 9, and a first yoke 10. The second magnetic yoke 11 and the MRF / MRG liquid chamber 12; for the magnetorheological fluid to play a characteristic role in the magnetic field. Further, a first electromagnetic coil 13 is arranged inside the first yoke 10; a left second electromagnetic coil 142 and a right second electromagnetic coil 141 are arranged inside t...

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Abstract

The invention discloses a magneto-rheological multi-stage adjustable inertia-capacitance variable damping device, which changes the viscosity of the magneto-rheological fluid by applying current to the electromagnetic coil, thereby causing active shearing plates, driven shearing plates and The change of the shear damping force between the magneto-rheological fluids can realize the multi-level real-time adjustment of the inertia coefficient and damping coefficient of the device.

Description

technical field [0001] The invention relates to the technical field of damping devices, in particular to a magneto-rheological multi-stage adjustable inertia capacity variable damping device. Background technique [0002] Incentives such as earthquakes or typhoons will cause damage to buildings, bridges and other structures, resulting in casualties and direct or indirect serious economic losses. Recoverable and sustainable design is the current development goal of civil engineering structures. Active and Passive structure control technology plays a vital role in the response of structures under dynamic excitations such as earthquakes or typhoons. TMD is widely used in long-span bridges and high-rise buildings around the world, limited by mass ratio factors and TMD structures. Due to the uncertainty of dynamic characteristics and external excitation, the robustness of the TMD control system is reduced, and the MTMD structure can improve its robustness, but the configuration i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/53F16F9/36E04B1/98E04H9/02E01D19/00
CPCE01D19/00E04H9/021F16F9/369F16F9/535
Inventor 黄永虎张红丽吕梦圆罗文俊
Owner EAST CHINA JIAOTONG UNIVERSITY
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