Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
권호 표지
DOI QR코드

DOI QR Code

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
Download PDF
⟨ Previous Next ⟩

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

  1. Lee, S. E. and Lee, T. W., "Vibration Characteristic Analysis of Gimbal Structure in Collection Equipment of Image Information, System with Observation Reconnaissance Camera Module", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 9, No. 2, pp. 20-25, 2010.
  2. Lee, S. E. and Lee, T. W., "Vibration Characteristic Analysis of Gimbal Structure System with Observation Reconnaissance Camera Module", Journal of the KSME(A), Vol. 35, No. 4, pp. 409-415, 2011. https://doi.org/10.3795/KSME-A.2011.35.4.409
  3. Back, J. H., "Modeling on an Antenna Flexible Characteristics of a Prototype Gimbal with an Antenna and Major Design Factors to determine a System Bandwidth", Journal of the KSME(A), Vol. 29, No. 5, pp. 743-753, 2005. https://doi.org/10.3795/KSME-A.2005.29.5.743
  4. Cho, T. D. and Yang, S. M., "Robust Control of Hydraulically Operated Gimbal System", Journal of Mechanical science and technology, Vol. 21, No. 5, pp.755-763, 2007. https://doi.org/10.1007/BF02916353
  5. Haberman, D., Sine-sweep test simulation in ANSYS using the large-mass and direct-displacement methods, Collaborative Solutions, Inc., 2000.
  6. Kim, Y. W., Kim H. N. and Jung, M. J., "Mathematical Analysis on Large Mass Method for the Dynamic Responses of a Two-d.o.f Spring-Mass System Excited by Ground Acceleration", Fall Conference of the KSME, pp. 933-932, 2010.
  7. ANSYS, Users's Manual for Revision 13.0, ANSYS Inc., 2011.
  8. Petrone, F.,Lacagnina, M., Scionti, M., "Dynamic Characterization of Elastomers and Identification with Rheological Model", Journal of Sound and Vibration, Vol. 271, pp. 339-363, 2004. https://doi.org/10.1016/j.jsv.2003.02.001
  9. Lord, "Low Profile Avionics Mounts(AM Series)", Lord Corporation, from http://www.lord.com
  10. MIL-STD-810G., Department of Defense Test Method Standard for Environmental Engineering Considerations and Laboratory Tests, Method 516.6 Shock, 2008.

Cited by

  1. Durability Analysis of Automotive Seat According to the Shape of Seat Back Frame vol.19, pp.10, 2014, https://doi.org/10.14775/ksmpe.2020.19.10.016
  2. Structural Design through Test and Analysis of Structure Equipped with Vibration Isolator System vol.31, pp.6, 2014, https://doi.org/10.5050/ksnve.2021.31.6.589