SMA 메쉬 와셔를 적용한 우주용 냉각기 수동형 진동절연기의 궤도 미소진동 절연성능 검증 (On-orbit Micro-vibration Isolation Performance Verification for Spaceborne Cryocooler Passive Vibration Isolator Using SMA Mesh Washer)

서지정보

· 발행기관 : 한국소음진동공학회
· 수록지 정보 : 한국소음진동공학회논문집 / 25권 / 1호 / 24 ~ 32페이지
· 저자명 : 권성철, 전수현, 오현웅

초록

Pulse tube-type spaceborne cryocooler is widely used to cool down the infrared sensor of observationsatellites. However, such cryocooler also generates micro-vibration which is the one ofmain sources to seriously affect the image quality during its on-orbit operation. Therefore, to complywith the mission requirement of high resolution observation satellite, additional technical efforts havebeen required. In this study, we proposed a spaceborne cryocooler passive vibration isolator usingSMA mesh washer, which guarantees the structural safety of both the micro-vibration disturbancesource and itself under harsh launch vibration loads without an additional holding mechanism and themicro-vibration isolation performance on orbit environment. To verify the micro-vibration isolationperformance of the proposed vibration isolator, we performed the micro-vibration isolation measurementtest using the dedicated micro-vibration measurement device proposed in this study.

영어초록

Pulse tube-type spaceborne cryocooler is widely used to cool down the infrared sensor of observationsatellites. However, such cryocooler also generates micro-vibration which is the one ofmain sources to seriously affect the image quality during its on-orbit operation. Therefore, to complywith the mission requirement of high resolution observation satellite, additional technical efforts havebeen required. In this study, we proposed a spaceborne cryocooler passive vibration isolator usingSMA mesh washer, which guarantees the structural safety of both the micro-vibration disturbancesource and itself under harsh launch vibration loads without an additional holding mechanism and themicro-vibration isolation performance on orbit environment. To verify the micro-vibration isolationperformance of the proposed vibration isolator, we performed the micro-vibration isolation measurementtest using the dedicated micro-vibration measurement device proposed in this study.

참고자료

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