Magnetorheological damper with complex liquid flow passage structure

A magnetorheological damper, liquid flow channel technology, applied in the direction of shock absorber, shock absorber, spring/shock absorber, etc., can solve the problem that the best effect cannot be achieved, the adjustable range of damping force is narrow, and the size of the damper It can increase the effective damping length, wide dynamic adjustment range, and extend the length.
CN108302152AActive Publication Date: 2018-07-20EAST CHINA JIAOTONG UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
EAST CHINA JIAOTONG UNIVERSITY
Publication Date
2018-07-20

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Abstract

The invention discloses a magnetorheological damper with a complex liquid flow passage structure. The magnetorheological damper is mainly composed of a piston rod, damper end covers, a damper cylinderbody, a magnet exciting coil, a piston head left end cover, a piston head right end cover, a piston head and the like. A complex liquid flow passage is formed by gaps defined by the piston head leftend cover, the piston head right end cover and the piston head in an enclosed mode, wherein four effective damping gaps are composed of the axial ring type damping gap I, the axial ring type damping gap V, the radial disc type damping gap II and the radial disc type damping gap III. When the magnet exciting coil is powered on, a definite-size magnetic field is generated in the four effective damping gaps, so that the shearing area and the effective damping length of the damping passage are increased. By the adoption of the complex flowing type liquid flow passage structure, the output dampingforce and the damping force adjustable range of the damper are further improved on the premise of not changing the radial and axial sizes of the damper, and the damper is particularly suitable for vibration isolation systems in the industries of railway, traffic and the like.
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Description

technical field

[0001] The invention relates to a magnetorheological damper, in particular to a magnetorheological damper with a complex liquid flow channel structure. Background technique

[0002] The magnetorheological damper is a new type of semi-active damping device based on the controllable characteristics of magnetorheological fluid. It has the advantages of simple structure, fast response, low power consumption, large damping force and continuous adjustment. At present, magnetorheological dampers have been widely used in vibration and anti-seismic systems of buildings and bridges, railway rolling stock and automobile suspension systems, etc.

[0003] In the vibration control system, the magnetorheological damper is mainly used to control the vibration generated by the system components to meet the requirements of various mechanical equipment for various working conditions. Therefore, the performance of the magnetorheological damper directly affects the static and dy...

Claims

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