Band-Drive Suspension Mechanism Design for Ground-Based Testing 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 Mech. Engr. and Mechanics, Lehigh University, Bethlehem, PA 18015-3006

Jer-Nan Juang

NASA Langley Research Center, Hampton, VA 23681

J. Mech. Des 117(1), 134-142 (Mar 01, 1995) (9 pages) doi:10.1115/1.2826098 History: Received February 01, 1993; Revised March 01, 1994; Online January 25, 2008


A suspension system based on a band mechanism is investigated to provide the free-free conditions for ground-based validation testing of flexible space structures. The band mechanism consists of a noncircular disk with a convex profile, preloaded by torsional springs at its center of rotation so that static equilibrium of the test structure is maintained at any vertical location; gravitational force will be directly counteracted during dynamic testing of the space structure. This noncircular disk within the suspension system can be configured to remain unchanged for test articles with different weights as long as the torsional spring is replaced to maintain the originally designed frequency parameter of W/ks Simulations of test articles which are modelled as lumped-parameter as well as continuous parameter systems are also presented.

Copyright © 1995 by The American Society of Mechanical Engineers
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