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Shock Analysis of Gimbal Structure System Including Rubber Vibration Isolator in a Observation Reconnaissance Aircraft

방진 고무를 포함한 항공 감시 정찰용 짐발 구조 시스템의 충격 해석

  • Lee, Sang Eun (Department of Mechanical Design Engineering, Kumoh National Institute of Technology) ;
  • Lee, Tae Won (Department of Mechanical Design Engineering, Kumoh National Institute of Technology) ;
  • Kang, Yong Goo (Seeker & EO/IR R&D Lab., LIG NEX1 Co. Ltd.)
  • 이상은 (금오공과대학교 기계설계공학과) ;
  • 이태원 (금오공과대학교 기계설계공학과) ;
  • 강용구 (LIG넥스원)
  • Received : 2014.01.08
  • Accepted : 2014.03.19
  • Published : 2014.04.30

Abstract

A camera module that gathers visual information via aerial observation reconnaissance is equipped inside a gimbal structure. This gimbal structure system must reduce dynamic responses in order to obtain clear images under all circumstances. Among many design specifications for this system, there is MIL-STD-810G as a shock standard. This specification indicates a limitation of the acceleration of the camera module under a base shock excitation on the gimbal structure. The satisfaction of this condition can usually be proved by experiment, because it includes bearings and dynamic isolators made of rubber. Numerical analysis must be proposed for design improvement of the gimbal structure. To achieve this goal, transient response analysis for the base shock excitation was performed using the finite element method. Experimental results were compared with numerical solutions and it is shown that the present method is useful.

Keywords

References

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