Evaluation of Damping Concepts for Precision Mounting Platforms

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Report Number: WL-TR-91-3078 Volume II, pages FAA-1 to FAA-16
Author(s): Hill, D., Stahle, C., Staley, J.
Corporate Author(s): General Electric - Astro Space Division
Laboratory: Wright Laboratory
Date of Publication: 1991-08
Pages: 16
Contract: F33615-89-C-3202
DoD Project: 2401
DoD Task: 240104
Identifier: This paper is part of a conference proceedings. See ADA241312

Abstract:
Conceptual analysis of a damped precision mounting platform with improved thermal and dynamic stability is presented. The use of metal matrix composite materials combined with viscoelastic damping materials results in uniquely stable, lightweight structures. Achievable goals for improved performance of an existing spacecraft precision mounting platform are established. Eight concepts are evaluated and ranked on damping, strength, thermal distortion, instrument mounting, and cost of fabrication. Three designs are selected for detailed quantitative analysis. Results for all three designs indicate performance goals can be met or exceeded. Thermal distortions and dynamic jitter response are both reduced by a factor of 5.

Provenance: University of Colorado Colorado Springs, Kraemer Family Library

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