期刊
INTERNATIONAL JOURNAL OF AEROSPACE ENGINEERING
卷 2020, 期 -, 页码 -出版社
HINDAWI LTD
DOI: 10.1155/2020/6017957
关键词
-
资金
- Space Technology Development Program of the National Research Foundation of Korea (NRF)
- Ministry of Science, ICT (MSIT) [NRF 2020M1A3A4A07052211]
A spaceborne cryogenic cooler induces undesirable microvibration disturbances during its on-orbit operation, which is one of the main sources that degrades the image quality of submeter-level high-resolution observation satellites. Several types of vibration isolation systems based on passive approaches have been developed for reducing the microvibration of the cooler. A coil-spring-type passive vibration isolation system developed in a previous study has shown excellent performance in both launch vibration and on-orbit microvibration isolation. To improve the capability of the conventional cooler isolator, including the position sensitivity and launch vibration reduction, we propose a new version of a dual coil-spring-type passive vibration isolator system. The effectiveness of the newly proposed design was validated through a microjitter measurement test, position sensitivity test, and qualification-level launch vibration test of the isolator.
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