Multi-degree of freedom magnetorheological devices and system for using same
US5492312A · kind A · utility
134Cited by
16References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 17, 1995 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | Apr 17, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B7/044
- WIPO fieldHandling
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.