Vibratory accelerations on large space platforms exceed the requirements of many space experiments. The MIM (Microgravity vibration Isolation Mount) was built by the Canadian Space Agency to attenuate these disturbances to acceptable levels. It has been operational on the Russian Space Station since May 1996, and has demonstrated good isolation performance in support of several materials science experiments. The MIM uses Lorentz (voice-coil) magnetic actuators to levitate and isolate payloads at the individual experiment/sub-experiment level. Payload acceleration, relative position, and relative orientation measurements are fed to a state-space controller. The controller, in turn, determines the actuator currents needed for effective experiment isolation. An algebraic, state-space model of the MIM was developed in a form suitable for optimal controller design.
The microgravity vibration isolation mount: a dynamic model for optimal controller design
Dynamische Modellbildung und Entwurf eines Optimalwertreglers für die Schwingungsisolierung in Raumstationen
1997
11 Seiten, 1 Bild, 11 Quellen
Conference paper
English
Microgravity Vibration Isolation Mount
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