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An adaptive magnetorheological fluid torsional shock absorber

A technology of torsional shock absorber and magnetorheological fluid, which is applied in the direction of shock absorber, shock absorber, spring/shock absorber, etc., can solve the problems of complex structure, and achieve the effect of easy wiring, compact structure and stable operation

Active Publication Date: 2019-01-18
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, in the above-mentioned patented technology, the rotor and the stator form a sealing structure, and the structure is complicated.

Method used

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  • An adaptive magnetorheological fluid torsional shock absorber
  • An adaptive magnetorheological fluid torsional shock absorber
  • An adaptive magnetorheological fluid torsional shock absorber

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Embodiment

[0035] Such as Figure 1-6 As shown, an adaptive magneto-rheological fluid torsional shock absorber includes a shock absorber housing 2 fixedly connected to the crankshaft, a coil bracket sleeved outside the shock absorber housing 2 and fixedly connected to the engine housing 1. The electromagnetic coil 8 wound on the coil support 1, the current controller electrically connected to the electromagnetic coil 8, and the magnetorheological fluid damping unit arranged on the shock absorber housing 2 along the circumferential direction and used in conjunction with the electromagnetic coil 8 , in the working state, the current controller adjusts the current of the electromagnetic coil 8, and the electromagnetic coil 8 generates a magnetic field of corresponding strength to change the frictional damping of the magnetorheological fluid damping unit to consume the energy of torsional vibration and avoid resonance.

[0036] The shock absorber housing 2 is provided with an annular groove ...

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Abstract

The invention relates to a self-adaptation magnetorheological fluid torsion damper. The self-adaptation magnetorheological fluid torsion damper comprises a damper shell fixedly connected with a crankshaft, a coil support arranged on the outer side of the damper shell in a sleeving manner and fixedly connected with an engine shell, an electromagnetic coil wound around the coil support, a current controller electrically connected with the electromagnetic coil, and a magnetorheological fluid damping unit arranged on the damper shell in the circumferential direction and used in cooperation with the electromagnetic coil. In the work state, the current controller adjusts the current of the electromagnetic coil, the electromagnetic coil generates a magnetic field with the corresponding intensity, accordingly, friction damping of the magnetorheological fluid damping unit is changed so that energy for torsion vibration can be consumed, and resonance is avoided. Compared with the prior art, the self-adaptation magnetorheological fluid torsion damper is simple and compact in overall structure, small in size and good in sealing performance, friction damping is adjustable, the torque adjusting effect is good, and safety and reliability are achieved.

Description

technical field [0001] The invention belongs to the technical field of shock absorbers, and relates to an adaptive magnetorheological fluid torsional shock absorber. Background technique [0002] Magneto-rheological fluid functional composite materials are prepared by dispersing micron or nano-scale soft magnetic particles in different types of carriers. Because their rheological properties can change continuously, rapidly and reversibly with the applied magnetic field, the magnetic sensitive intelligent soft Materials have been widely used and attracted more and more attention in fields such as construction, vibration control and automobile industry. [0003] The crankshaft is a shaft with certain elasticity and rotating mass, that is, a torsional elastic system, which itself has a certain natural frequency. During the working process of the engine, each crank throw of the crankshaft relative to the flywheel at the rear of the shaft will undergo relative vibration with per...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/53F16F15/16
CPCF16F9/535F16F15/161
Inventor 刘文涛罗一平任洪娟杨斌陆雯
Owner SHANGHAI UNIV OF ENG SCI
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