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방진을 고려한 항공 정찰용 카메라 모듈부의 진동특성에 관한 연구A Study on the Vibration Characteristics of Camera Module for Aerial Reconnaissance Considering Vibration Isolator
- Other Titles
- A Study on the Vibration Characteristics of Camera Module for Aerial Reconnaissance Considering Vibration Isolator
- Issue Date
- 2012
- Publisher
- 한국정밀공학회
- Keywords
- Gimbal (짐발); Finite Element Method (유한요소법); Harmonic Responses Analysis (조화응답해석); Acceleration Transmissibility (가속도 전달율); Vibration Isolator (방진장치)
- Citation
- 한국정밀공학회지, v.29, no.5, pp.545 - 553
- Journal Title
- 한국정밀공학회지
- Volume
- 29
- Number
- 5
- Start Page
- 545
- End Page
- 553
- ISSN
- 1225-9071
- Abstract
- A Gimbal structure system in observation reconnaissance aircraft is made up of camera module and stabilization drive device supporting camera module. During flight for image recording, the aircraft undergoes serious accelerations with wide frequencies due to several factors. Though base excitation of stabilization drive device induces vibration of camera module, it must get the stable and clean images. To achieve this aim, acceleration of camera module must be reduced. Hence, vibration isolators were installed to stabilization drive device. Considering isolators and bearings in the stabilization drive device, vibration characteristics of gimbal structure system were analyzed by finite element method. For three translational direction, acceleration transmissibility of camera module was calculated by harmonic responses analysis in the frequency range of 5 ~500 Hz. In addition to, sine-sweep experiment were performed to prove correctness of present analysis.
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Collections - Department of Mechanical Design Engineering > 1. Journal Articles
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