Alignment design for a cryogenic telescope

Details Alignment design for a cryogenic telescope Alignment design for a cryogenic telescope

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980spie..251..171y&link_type=abstract

In: Optical alignment; Proceedings of the Seminar, San Diego, CA, July 29-31, 1980. (A81-39578 18-74) Bellingham, WA, Society of

Computer Science

Performance

Alignment, Cryogenic Cooling, Design Analysis, Infrared Astronomy, Spaceborne Telescopes, Finite Element Method, Focusing, Infrared Astronomy Satellite, Mirrors, Nastran, Performance Tests, Systems Engineering

Scientific paper

This paper describes the alignment approach for the infrared astronomical satellite (IRAS) optical subsystem from initial design to acceptance testing. The constraints imposed by the requirement of maintaining alignment at 300K and 2K, in a 1-g and 0-g gravitational field, during warm and cold vibration, and during various stages of assembly, are discussed. The paper concludes with the methodology of applying NASTRAN finite element analyses to the alignment design, followed by the verification of the accuracy of the design with the test results.

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