Structural dynamic interaction with solar tracking control for evolutionary Space Station conceptsThe paper addresses the sun tracking control system design of the Solar Alpha Rotary Joint (SARJ) and the interaction of the control system with the flexible structure of Space Station Freedom (SSF) evolutionary concepts. The significant components of the Space Station pertaining to the SARJ control are described, and the tracking control system design is presented. Finite element models representing two evolutionary concepts, Enhanced Operations Capability (EOC) and Extended Operations Capability (XOC), are employed to evaluate the influence of low frequency flexible structure on the control system design and performance. The design variables of the control system are synthesized using a constrained optimization technique to meet design requirements, to provide a given level of control system stability margin, and to achieve the most responsive tracking performance. The resulting SARJ control system design and performance of the EOC and XOC configurations are presented and compared to those of the SSF configuration.
Document ID
19920051867
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lim, Tae W. (Lockheed Engineering and Sciences Co. Hampton, VA, United States)
Cooper, Paul A. (NASA Langley Research Center Hampton, VA, United States)
Ayers, J. K. (Lockheed Engineering and Sciences Co. Hampton, VA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
AIAA PAPER 92-2461
Meeting Information
Meeting: AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference