Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Dynamic Behavior Analysis of a Satellite Having Sandwich Panel by Utilizing Asymptotic Homogenization

Asymptotic 균질화법을 활용한 샌드위치패널로 제작된 위성 구조체의 동적 거동 분석

  • Cho, Hee Keun (Department of Mechanical Engineering Education, Andong National Univ.)
  • Received : 2013.08.07
  • Accepted : 2013.10.21
  • Published : 2013.11.01
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Abstract

Korea's first Naro-Science small class satellite was launched by Naro launcher in 2013. The structure of the satellite is mostly composed of aluminum honeycomb and frame. The honeycomb structure is homogenized with asymptotic homogenization method and its mechanical properties were used for the numerical analysis. There have been some difficulties to modeling the honeycomb sandwich panels for FEA. In the present study, the mechanical characteristics of the sandwich panel composite were numerically computed and used for the simulation. This methodology makes it easy to overcome the weakness of modeling of complicated sandwich panels. Both an experiment of vibration test and numerical analyses were conducted simultaneously. The analysis results from the current homogenization were compared with that of experiment. It shows a good agreement on the dynamic responses and certified the reliability of the present methodology when manipulate sandwich panel structure.

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References

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