한국항공우주학회지 (Journal of the Korean Society for Aeronautical & Space Sciences)

  • 제41권8호
  • /
  • Pages.605-612
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  • 2013
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  • 1225-1348(pISSN)
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  • 2287-6871(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
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연성하중해석 수행을 위한 인공위성 유한요소모델 보정 및 검증

Finite Element Model Updating and Validation of Satellites for Coupled Load Analysis

  • Lim, Jae Hyuk (Korea Aerospace Research Institute, Satellite Structure Department) ;
  • Kim, Kyung-Won (Korea Aerospace Research Institute, Satellite Structure Department) ;
  • Kim, Sung-Hoon (Korea Aerospace Research Institute, Satellite Structure Department) ;
  • Hwang, Do-Soon (Korea Aerospace Research Institute, Satellite Bus Division)
  • 투고 : 2013.03.26
  • 심사 : 2013.07.15
  • 발행 : 2013.08.01
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초록

중형 또는 대형 인공위성은 발사를 앞두고 발사체 회사와 함께 연성하중해석을 실시하여 위성설계를 최종 검증한다. 연성하중해석을 통해 얻어진 최대가속도, 최소간극, 최대하중은 인공위성의 설계하중과 비교하여 인공위성의 설계를 최종적으로 검증하게 된다. 이러한 연성하중해석의 신뢰도를 높이기 위해서는 인공위성 유한요소모델은 충분히 검증되어야 하는데, 발사 직전에 수행하는 정현파 진동시험결과에 맞춰 보정한다. 본 논문에서는 연성하중해석을 위한 유한요소모델의 보정 및 검증결과에 대해 기술한다.

When developing medium satellites or large satellites, coupled load analysis(CLA) is performed in order to verify satellite design as a final assessment under launch environment. Maximum acceleration, gap between adjacent parts, internal loads obtained from CLA are used to assess the safety of satellite design by comparing them with the allowable loads of every component. To achieve reliable CLA results, satellite FE model have to be properly updated to match with the sine vibration test results. In this paper, the validation procedure of satellite FE model and its results are discussed.

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참고문헌

  1. Sarafin, T. P. and Larson, W. J., Spacecraft Structures and Mechanisms: From Concept to Launch, Kluwer, 1995.
  2. Cho, H.-K., Lee, S.-H., and Cha, W.-H., " Dynamic Behavior Response and Investigation of a Small-Class Satellite Having Sandwich Panel Structures," Journal of the Korean Society for Aeronautical and Space Sciences, Vol. 40, No. 9, 2012, pp. 771-780. https://doi.org/10.5139/JKSAS.2012.40.9.771
  3. Hwang, D.-S., Lee, Y.-S., and Kim, I.-G., "A Study on the Optimization of a Spacecraft Structure by Using Coupled Load Analysis Model and Modal Transient Analysis," Journal of the Korean Society for Aeronautical and Space Sciences, Vol. 32, No. 6, 2004, pp. 34-48. https://doi.org/10.5139/JKSAS.2004.32.6.034
  4. Hwang, D.-S., Lee, Y.-S., and Kim, I.-G., "Optimization of Spacecraft Structure by Using Coupled Load Analysis," Journal of the Korean Society for Aeronautical and Space Sciences, Vol. 30, No. 4, 2002, pp. 106-113. https://doi.org/10.5139/JKSAS.2002.30.4.106
  5. Wijker, J. J., Spacecraft Structures, Springer, 2007.
  6. Friswell, M. I. and Mottershead, J. E., Finite Element Model Updating in Structural Dynamics, Kluwer, Dordrecht, 1995.
  7. European Cooperation for Space Standardization, Space Engineering: Structural finite element models, ECSS-E-ST-32-03C, 2008.
  8. NASA, NASA Technical Standard : Load Analyses of Spacecraft and Payloads, NASA-STD-5002, 1996.
  9. Department of Defence, MIL- HDBKHandbook- 340A (USAF), Test Requirements for Launch, Upper Stage, and Space Vehicles, Volume II: Applications and Guidelines, 1999.
  10. Craig, R. R. and Bampton, M. C. C., "Coupling of Substructures for Dynamic Analysis," AIAA Journal, Vol. 6, 1968, pp.1313-1319. https://doi.org/10.2514/3.4741
  11. Dynamic Analysis User's Guide: MSC Nastran 2012, MSC Software, 2011.
  12. Dynamic Design Solutions, FEM Tools Model Updating Theoretical Manual, Version 3.5, Leuven (Belgium), 2010.
  13. Lammens, S., Frequency Response Based Validation of Dynamic Structural Finite Element Models, PhD Thesis, Katholieke Universiteit Leuven, 1995.
  14. Göge, D. and Link, M., Assessment of Computational Model Updating Procedures with regard to Model Validation, Aerospace Science and Technology, Vol. 7, 2003, pp. 47-61. https://doi.org/10.1016/S1270-9638(02)01193-8

피인용 문헌

  1. A correlation study of satellite finite element model for coupled load analysis using transmissibility with modified correlation measures vol.33, pp.1, 2014, https://doi.org/10.1016/j.ast.2014.01.002
  2. Satellite finite element model updating for the prediction of the effect of micro-vibration vol.42, pp.8, 2014, https://doi.org/10.5139/JKSAS.2014.42.8.692