Publisher's Synopsis
Many microgravity space science experiments require vibratory acceleration levels unachievable without active isolation. The Boeing Corporation's Active Rack Isolation System (ARIS) employs a novel combination of magnetic actuation and mechanical linkages to address these isolation requirements on the International Space Station (ISS). ARIS provides isolation at the rack (International Standard Payload Rack (ISPR)) level. Effective model-based vibration isolation requires: (1) an appropriate isolation device, (2) an adequate dynamic (i.e., mathematical) model of that isolator, and (3) a suitable, corresponding controller. ARIS provides the ISS response to the first requirement. This paper presents one response to the second, in a state space framework intended to facilitate an optimal-controls approach to the third. The authors use "Kane's Dynamics" to develop a state-space, analytical (algebraic) set of linearized equations of motion for ARIS.Hampton, R. D. and Beech, G. S. and Rao, N. N. S. and Rupert, J. K. and Kim, Y. K.Marshall Space Flight CenterMATHEMATICAL MODELS; MICROGRAVITY; VIBRATION ISOLATORS; SPACEBORNE EXPERIMENTS; ISOLATION; VIBRATION; PAYLOADS; LINKAGES; ISOLATORS; INTERNATIONAL SPACE STATION; EQUATIONS OF MOTION; CONTROLLERS; ALGEBRA; ADVANCED RANGE INSTRUMENTATION SHIP...
