Damping and vibration considerations for the design of optical systems in a launch/space environment

Ralph M. Richard

doi:10.1117/12.23037

1 November 1990 Damping and vibration considerations for the design of optical systems in a launch/space environment

Ralph M. Richard

Proceedings Volume 1340, Cryogenic Optical Systems and Instruments IV; (1990) https://doi.org/10.1117/12.23037
Event: 34th Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1990, San Diego, CA, United States

Abstract

A review of engineering philosophies used for the design of optical systems launched into space and operating a vacuum or cryovacuum environment is presented herein. Sources of energy dissipation which are usually lumped under a single modal parameter denoted as the equivalent viscous damping coefficient are reviewed. Optical systems operating in a cryovacuum environment are especially difficult to design for the launch inertia and acoustic loadings unless the components of the system are either caged or clamped since general viscoelastic effects, interface and/or joint relative motion are designed to be minimal. Moreover, stress levels and stress gradients are also designed to be low in precision instruments.

Citation Download Citation

Ralph M. Richard "Damping and vibration considerations for the design of optical systems in a launch/space environment", Proc. SPIE 1340, Cryogenic Optical Systems and Instruments IV, (1 November 1990); https://doi.org/10.1117/12.23037

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