Whole-spacecraft hybrid isolation system for launch vehicles

Details Whole-spacecraft hybrid isolation system for launch vehicles Whole-spacecraft hybrid isolation system for launch vehicles

1999-03-26

2000-10-24

Poon, Peter M.

Aeronautics and astronautics

Spacecraft

Spacecraft formation, orbit, or interplanetary path

244 1R, 248566, 26714011, B64G 122

Patent

active

061353906

ABSTRACT:
A whole-spacecraft passive isolation system consisting of a plurality of titanium flexures that act as soft springs to isolate a satellite from its launch vehicle is improved by the addition of piezoceramic wafers attached to the flexures. A low-pass filter feedforward controller is used to cancel out disturbances by applying out-of-phase signals to the piezoceramic wafers thereby creating a hybrid isolation system that significantly reduces the dynamic loads on the spacecraft.

REFERENCES:
patent: 5845236 (1998-12-01), Jolley et al.
patent: 6009985 (2000-01-01), Ivers

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