High-energy consumption self-decoupling magnetorheological damper

A magneto-rheological damper, high energy consumption technology, applied in building components, shockproof, etc., to achieve the effect of large output adjustable range, small size, and simple design
CN101446117BInactive Publication Date: 2010-10-27HOHAI UNIV +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
HOHAI UNIV
Publication Date
2010-10-27
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a high-energy consumption self-decoupling magnetorheological damper with damping force decoupling property and failure self-protection function. The damper not only has high energy consumption and output, but also can effectively prevent subsidence of magnetorheological fluid, therefore, the invention is suitable for civil engineering structures. The damper mainly comprises a master cylinder body (6), an auxiliary cylinder body (13), a main piston (8), two auxiliary pistons (23), a piston rod (25), and novel composite-structure energy accumulators (14 and 15). Permanent magnets (9) arranged in the main piston (8) and the two auxiliary pistons (23) can effectively prevent subsidence of magnetorheological fluid, and can still provide corresponding damping force under the condition of power supply failure to enhance the safety of the structure. Magnetic circuit guiding components improve the utilization factor of the magnetic field. A mechanical spring self-decoupling device is mainly operated on the condition that the damper is under low-frequency driving, thereby overcoming the disadvantage of low output of the damper under low-frequency driving.
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Description

technical field

[0001] The invention mainly relates to the field of dampers, and is a damper used for anti-seismic (vibration) of civil engineering structures, especially a high-energy-consuming shock-absorbing (vibration) device with damping force decoupling characteristics and failure self-protection functions. Background technique

[0002] Strong earthquakes have caused huge disasters to people all over the world. It is important to seek more reasonable and effective anti-seismic (vibration) methods, and to study safer, economical and reliable energy-consuming shock-absorbing (vibration) components, which are important for effectively reducing earthquake disasters. Practical significance. As an important branch of current smart material research, magnetorheological fluid has broad application prospects in the field of vibration control. It is a controllable fluid, which is a stable suspension formed by dispersing non-colloidal fine particles in an insulating carrier liqu...

Claims

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