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http://dx.doi.org/10.5139/JKSAS.2011.39.12.1160

Three-axis Spring Element Modeling of Ball Bearing Applied to EO/IR Camera and Structural Response Analysis of EO/IR Camera  

Cho, Hee-Keun (안동대학교 기계교육과)
Rhee, Ju-Hun (한국항공우주연구원)
Lee, Jun-Ho (공주대학교 광공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.39, no.12, 2011 , pp. 1160-1165 More about this Journal
Abstract
This study is focused on the structural dynamic responses, i.e., vibration analysis results of the high-accuracy observation multi-axial camera, which is installed and operated for the UAV (Unmanned Aerial Vehicle) and helicopter etc. And, the authors newly suggest a modeling technology of the ball bearing applied to the camera by using three-axis spring elements. The vibration analysis results well agreed to the randum vibration test results. Also, the vibration responses characteristics of the multi-axial camera through the time history analysis of the random vibration were analyzed and evaluated. The above results can be applied to the FE-modeling of the ball bearings used for the space cameras.
Keywords
EO/IR Camera; Ball Bearing; FEA; Vibration;
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  • Reference
1 B. J. Kim, S. D. Park, E. E. Kim, "MACSAT-A Mini-Satellite Approach to High Resolution Space Imaging", 17th AIAA/USU Conference on Small Satellites, 2003.
2 Y. W. Choi, S. W. Yang, M. S. Kang, "Development of TMA-based Imaging System for Hyperspectral Application", ICSO, 2008.
3 J. H. Lee, C. W. Lee, I. Kang, T. S. Jang, H. S. Tang, W. Han, J. O. Park, S. W. Rhee, " A Compact Imaging Spectrometer(COMIS) for the Microsatellite STSAT", Proc. of SPIE, Vol. 6744 67441C-8.
4 S. O. Rice, "Mathematical Analysis of Random Noise", Bell System Technical Journal, Vol. 23, 1994, pp. 282-332.
5 C. W. Engelhardt, "Random Vibration Analysis Using Statistically Equivalent Transient Analysis", International Modal Analysis Conference, 1999, pp. 1852-1855.