Concurrent Mechanism and Control Design for the Slewing of Flexible Space Structures

[+] Author and Article Information
Li-Farn Yang

Department of Mechanical Engineering, National Chung Cheng University, Taiwan, R.O.C.

Meng-Sang Chew

Department of Mechanical Engineering and Mechanics, Lehigh University, Bethlehem, Pennsylvania 18015

Jer-Nan Juang

Spacecraft Dynamics Branch, NASA Langley Research Center, Hampton, Virginia 23681

J. Mech. Des 116(3), 944-951 (Sep 01, 1994) (8 pages) doi:10.1115/1.2919474 History: Received September 01, 1992; Revised April 01, 1993; Online June 02, 2008


An integrated single-step design approach to the synthesis of a mechanical device and an active controller is presented for slew maneuvers of flexible space structures. A mechanical device consists of a noncircular gear pair that acts as a varying gear ratio transmission between an electro-mechanical actuator and a flexible structure. Such a system has been introduced as an analytical application in minimizing flexural vibrations in the slewing maneuver of flexible space structures such as large solar panels and satellites in space. Only a simple regulator-type feedback controller is called for to control this complex electro-mechanical-and-structural system and the purpose is to design this complex system in an integrated procedure to achieve low flexural vibrations of the structure. Numerical simulations of the slewing control tasks for a planar articulated double-beam structure are presented.

Copyright © 1994 by The American Society of Mechanical Engineers
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