The Search for Appropriate Actuator Distribution Criteria in Large Space Structures Control

Richard W. Longman and Robert E. Lindberg
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Richard W. Longman: Naval Research Laboratory
Robert E. Lindberg: Naval Research Laboratory

A chapter in Adaptive and Learning Systems, 1986, pp 297-307 from Springer

Abstract: Abstract In a series of previous publications the authors have defined various concepts of the degree of controllability, together with a unifying framework for such definitions. These concepts can be used as control system design tools, with applications that include actuator placement, model reduction, and the quantification of the degree of coupling between subsystems. These works were motivated by the actuator placement question in the shape control of future large flexible spacecraft. Previous use of these concepts have all pointed toward placement of the actuators at the corners of the structure where the modes have the largest deflections and slopes. Various physical situations suggest that this is not always the most desirable location, and this paper demonstrates that the degree of controllability concepts can give optimal locations distributed throughout the spacecraft when the time given to accomplish the control is relatively short.

Keywords: Adaptive Control; Shape Control; Optimal Degree; Rigid Body Mode; Torque Actuator (search for similar items in EconPapers)
Date: 1986
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DOI: 10.1007/978-1-4757-1895-9_21

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