Active vibration isolation system employing an electro-rheological fluid
US4742998A · kind A · utility
64Cited by
10References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 31, 1985 |
| Grant date | May 10, 1988 |
| Priority date | — |
| Expiry date | Jul 31, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2082
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An active vibration isolation system employing an electro-rheological fluid comprises a damper having a servovalve fluidically coupling a load supporting actuator to an accumulator. The servovalve includes an orificed plate arrangement, across which a voltage potential is impressed in accordance with a command signal derived from response sensors. The viscosity of an electro-rheological fluid contained within the servovalve reacts to the voltage potential so as to regulate the fluid flow. In this manner the damping coefficient is modulated to as to approximate a "sky-hook" damper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.