Closed-loop performance of a vibration isolation and suppression system

This paper describes the initial closed-loop isolation testing of the vibration isolation and suppression system (VISS) which can be used to isolate a precision payload from spacecraft borne disturbances. VISS utilizes six hybrid isolation struts in a hexapod configuration. The VISS experiment has recently been tested at the Phillips Laboratory and significant closed-loop vibration isolation was achieved. The control approach, the performance testbed, and the initial test results are described.