A passive launch and on-orbit vibration isolation system for the spaceborne cryocooler

Authors: Hyun-Ung Oh, Kyung-Joo Lee, Mun-Shin Jo

Abstract:
To enhance the pointing performance by isolating disturbances induced by a spaceborne payload mounted cryogenic cooler during the on-orbit operation, a passive launch and on-orbit vibration isolation system has been proposed and investigated. The isolation system is also effective for reducing the transmitted launch loads to the cooler. In order to demonstrate the effectiveness of the isolation system, launch environment tests such as sine, random and shock tests and a micro-vibration measurement test of the cooler combined with the isolator have been performed. The test results indicate that the isolation system guarantees both the structural safety of the cooler under the launch environment and the microvibration isolation of the cooler under the on-orbit condition.

Keywords:
Cryocooler
Launch vibration isolation
On-orbit vibration isolation

Published in: Aerospace Science and Technology  (Volumes 28, Issue 1, July 2013)

Publisher: Elsevier

ISSN Information: 1270-9638

A passive launch and on-orbit vibration isolation system for the spaceborne cryocooler

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