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Volume 30 Issue 03
Mar.  2004
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Journal of Beijing University of Aeronautics and Astronautics  > 2004  >  30(03): 189-191.
Lin Heng, Du Xinzheng, Zhang Chunxi, et al. Application of FEA and laser measurer for optimization design of FOG[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(03): 189-191. (in Chinese)
Citation: Lin Heng, Du Xinzheng, Zhang Chunxi, et al. Application of FEA and laser measurer for optimization design of FOG[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(03): 189-191. (in Chinese)
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Application of FEA and laser measurer for optimization design of FOG

  • School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 05 Nov 2002
  • Publish Date: 31 Mar 2004
    Abstract
  • The vibration stability of FOG(fiber-optic gyroscope) is one of the most important factors in design. With the theories of vibration analysis and finite element analysis (FEA), the natural frequency, vibration modes and dynamic analysis were calculated and simulated by ANSYS5.7. The FOG's vibration modes, within 0~5 kHz, were measured with Polytec-PS200 vibration meter. Compared with the FOG's output characteristic under the vibration, the relation had been found between components' vibration characteristic and the vibration stability of FOG. An optimization structure of FOG was provided based on the research results. It's null shift output was minished about 65%.

     

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  • [1] Hervé C Lefèvre. 光纤陀螺仪[M]. 张桂才,王 巍译. 北京:国防工业出版社,2002 Hervé C Lefèvre. The fiber-optic gyroscope[M]. Translated by Zhang Guicai, Wang Wei. Beijing:National Defence Industry Press,2002(in Chinese) [2] Ewins D J. Modal testing:theory and practice[M]. Research Studies Press Ltd, 1995 [3]Steinberg D. Vibration analysis for electronic equipments . New York:Wiley and Sons, 1988 [4]Wu J, Zhang R R,Radons S. Vibration transmissibility of printed circuit boards by calibrated FEA modeling . MIT Conference on Computational Fluid and Solid Mechanics, Vol.1 Elseviser Science Ltd, 2001. 758~760 [5]Towers D P, Buckberry C H, Stockley B C, et al. Measurement of complex vibrational modes and surface from a combined system[J]. Measur Sci Technol, 1995, 6:1242~1249 [6]Shellabear M C, Tyrer J R. Application of ESPI to three-dimensional vibration measurements[J]. Opt Lesers Engng, 1991, 15:43~56
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