Magnetic flowing deformation elastomer frequency shift type attenuator and control method

A magnetorheological elastomer and vibration absorber technology, which is applied in vibration suppression adjustment, non-rotational vibration suppression, etc., can solve the problems of narrow control frequency band, insignificant influence of vibration absorber characteristics, and high energy consumption, etc., to achieve vibration reduction frequency Wide bandwidth, easy control method, and high system reliability
CN1948781AInactive Publication Date: 2007-04-18UNIV OF SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
UNIV OF SCI & TECH OF CHINA
Publication Date
2007-04-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The inventive vibration absorber comprises an execution unit, a control unit and a sensor. The execution unit consists of a magnetic inductor, a coil, a magnetic rheological elastic body, a vibration-absorbing mass block and a base. The above magnetic inductor consists of inner and outer sleeves, or a U-shaped iron-core and an armature or top and bottom plates and a column iron-core. Between inner and outer sleeves, the U-shaped iron-core and the armature or the top and bottom plates are filled the magnetic rheological elastic bodies. By regulating the voltage on the coil, the rigidity and the elasticity of the magnetic rheological elastic body are regulated to make its vibration frequency change, so as to make the vibration frequency of the vibration absorber execution unit is the same as that of the vibration-damping object.
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Description

(1) Technical field:

[0001] The invention relates to a vibration damping device and a control method applied to machinery and electrical equipment. (two) background technology:

[0002] In the past mechanical and electrical equipment, due to the lack of an effective shock absorption system, the mechanical and electrical equipment were damaged prematurely or caused noise pollution to the environment.

[0003] Existing vibration control methods can be divided into active control, passive control, and semi-active control. Passive control has no adjustment ability at all, has its limitations, and is only suitable for narrow-band vibration control. Active control is superior to passive control and can be actively adjusted, suitable for broadband vibration control. However, active control belongs to force control, which needs to directly provide the energy of control force, and the cost is high and the technology is relatively complicated. Semi-active control belongs to paramet...

Claims

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