Design of Passive Tuned Vibration Absorber for Linear Cryogenic Cooler Vibration Suppression in Space Application
- Paper number
IAC-09.C2.I.15
- Author
Mr. Young-Keun Kim, Korea Advanced Institute of Science and Technology (KAIST), Korea, Republic of
- Coauthor
Dr. Kyung-Soo Kim, Korea Advanced Institute of Science and Technology (KAIST), Korea, Republic of
- Coauthor
Dr. Hong-Bae Kim, Korea Aerospace Research Institute, Korea, Republic of
- Coauthor
Mr. Eunghyun Kim, Korea Aerospace Research Institute, Korea, Republic of
- Year
2009
- Abstract
Observation satellites contain cryogenic cooled infrared imager and the performance of such satellites is improved by reducing the transmission of vibration disturbances to the image sensor. One major source of the unwanted jitter is from the moving mass of cryogenic coolers. To isolate the precision payload from disturbances, passive mechanical isolation system in combination of active system has been used extensively in most of satellites. This paper proposes a tuned dynamic vibration absorber in combination of passive isolator. A cryogenic compressor bracket is designed to support mechanical isolation to allow the mass balancer to mitigate the vibration jitter in the axial direction. This design is analyzed for dynamic suppression of the harmonic force at the operating frequency of the cooler.
- Abstract document
- Manuscript document
IAC-09.C2.I.15.pdf (🔒 authorized access only).
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