Multi-degree of freedom magnetorheological devices and system fo

Details Multi-degree of freedom magnetorheological devices and system fo Multi-degree of freedom magnetorheological devices and system fo

1995-04-17

1996-02-20

Oberleitner, Robert J.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

188267, 26714015, F16F 904

Patent

active

054923123

ABSTRACT:
A semi-active device 20 is provided for damping motion between structures having multi-degrees of freedom. A magnetic field produced by a permanent magnet, a coil, or a combination thereof, change the rheological properties of an MR fluid 40 to effectively lock up the components and the structures to which they are attached to serve as a brake or damper of the associated compound motion. A system 21 employing the MR devices 20 includes a motion detection sensor 15 and a controller 19 to actuate the MR devices 20 when a predetermined motion threshold is exceeded.

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