Launch load attenuation for space shuttle experimental equipment

Paul S. Wilke; Sree K. Thampi

doi:10.1117/12.208906

5 May 1995 Launch load attenuation for space shuttle experimental equipment

Paul S. Wilke, Sree K. Thampi

Author Affiliations +

Proceedings Volume 2445, Smart Structures and Materials 1995: Passive Damping; (1995) https://doi.org/10.1117/12.208906
Event: Smart Structures and Materials '95, 1995, San Diego, CA, United States

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.

Citation Download Citation

Paul S. Wilke and Sree K. Thampi "Launch load attenuation for space shuttle experimental equipment", Proc. SPIE 2445, Smart Structures and Materials 1995: Passive Damping, (5 May 1995); https://doi.org/10.1117/12.208906

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