Active vibration isolation system employing an electro-rheologic

Details Active vibration isolation system employing an electro-rheologic Active vibration isolation system employing an electro-rheologic

1985-07-31

1988-05-10

Caldwell, Sr., John W.

Spring devices

Resilient shock or vibration absorber

2671401, 267 35, 137807, 1883225, F16F 900, F16F 1502

Patent

active

047429984

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.

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patent: 4351515 (1982-09-01), Yoshida
patent: 4352487 (1982-10-01), Shtarkman

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