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Proceedings Paper

Launch load attenuation for space shuttle experimental equipment
Author(s): Paul S. Wilke; Sree K. Thampi
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Paper Abstract

Experiments performed aboard the space shuttle often utilize sensitive scientific equipment which cannot withstand high launch loads without damage. It would be highly advantageous to reduce the severity of the dynamic launch environment so that space-qualification of such equipment would be faster and less expensive. This is the goal of the Soft Ride to Orbit program. This program has identified passive damping as one technology which will reduce loads seen by equipment and thereby provide a softer ride. Finite element structural modeling was used to predict both undamped and damped responses to simulated launch loads. The modal strain energy method was used to design the passive damping treatment. This treatment was manufactured and applied to the drawer. All analyses were verified by modal and vibration testing. It was found that predicted and tested frequencies, damping values, and vibration response levels agreed reasonably well, thus showing that passive damping may be designed into future equipment drawers to reduce launch loads on sensitive equipment.

Paper Details

Date Published: 5 May 1995
PDF: 12 pages
Proc. SPIE 2445, Smart Structures and Materials 1995: Passive Damping, (5 May 1995); doi: 10.1117/12.208906
Show Author Affiliations
Paul S. Wilke, CSA Engineering, Inc. (United States)
Sree K. Thampi, Martin Marietta Services, Inc. (United States)

Published in SPIE Proceedings Vol. 2445:
Smart Structures and Materials 1995: Passive Damping
Conor D. Johnson, Editor(s)

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