A magnetorheological elastomer torsional shock absorber

A magneto-rheological elastomer and torsional shock absorber technology, which is applied in the direction of rotation vibration suppression, non-rotation vibration suppression, vibration suppression adjustment, etc., can solve the problems of narrow adjustment frequency range and poor vibration damping effect, and achieve high work efficiency , avoid resonance, and work stably

Active Publication Date: 2019-09-06
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional rubber torsional damper has the disadvantages of poor damping effect and narrow adjustment frequency range

Method used

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  • A magnetorheological elastomer torsional shock absorber
  • A magnetorheological elastomer torsional shock absorber
  • A magnetorheological elastomer torsional shock absorber

Examples

Experimental program
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Embodiment

[0029] like Figure 1-4 As shown, a magneto-rheological elastomer torsional shock absorber includes a shock absorber housing 3 fixedly connected to the crankshaft, a coil support 1 sleeved on the outside of the shock absorber housing 3 and fixedly connected to the engine housing, a winding The electromagnetic coil 7 on the coil support 1, the current controller electrically connected to the electromagnetic coil 7, and the magnetorheological elastomer unit sleeved on the shock absorber housing 3 and used in conjunction with the electromagnetic coil 7, in the working state , the current controller adjusts the magnitude of the current of the electromagnetic coil 7, and the electromagnetic coil 7 generates a magnetic field of a corresponding strength, thereby changing the frictional damping of the magnetorheological elastomer unit to consume torsional vibration energy and avoid resonance.

[0030] Wherein, the magnetorheological elastomer unit includes a mass block 2 sleeved on th...

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PUM

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Abstract

The invention relates to a magnetorheological elastomer torsion damper. The magnetorheological elastomer 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 elastomer unit arranged on the damper shell in a sleeving manner 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 elastomer unit is changed so that energy for torsion vibration can be consumed, and resonance is avoided. Compared with the prior art, the magnetorheological elastomer torsion damper is simple and compact in overall structure, friction damping is adjustable, wire leading is easy, the coil support is fixed to the engine shell, wiring is convenient, operation is more convenient and rapid, safety and reliability are achieved, and very good application prospects are achieved.

Description

technical field [0001] The invention belongs to the technical field of shock absorbers, and relates to a magneto-rheological elastic body torsional shock absorber. Background technique [0002] Magneto-rheological elastomer functional composite materials are prepared by dispersing micron or nano-sized soft magnetic particles in different types of carriers. Because their rheological properties can change continuously, rapidly and reversibly with the applied magnetic field, the magneto-sensitivity intelligent Soft materials have been widely used in fields such as construction, vibration control, and automotive industry, and have attracted increasing attention. [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 section of the shaft will undergo relative vib...

Claims

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Application Information

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