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A Study on the FE-Model Reduction of Satellite Using Seperelement Method  

Kim, Kyung-Won (한국항공우주연구원 위성구조팀)
Lim, Jae-Hyuk (한국항공우주연구원 위성구조팀)
Kim, Chang-Ho (한국항공우주연구원 위성구조팀)
Hwang, Do-Soon (한국항공우주연구원 위성본체실)
Publication Information
Journal of Satellite, Information and Communications / v.6, no.2, 2011 , pp. 46-50 More about this Journal
Abstract
In order to perform the satellite structural analysis, FE-Model(Finite Element Model) considering all mechanical properties is necessary. Generally, different companies develop several satellite components, and sometimes it is very difficult to obtain FE-Model. In this case, FE-Model reduction using superelement method can be good solution. For developing satellite, antenna manufacturer required satellite FE-Model to calculate microvibration induced by antenna operation, and condensed model using superelement method was provided. Superelement method is based on Craig-Bampton method, and it is applied to spacecraft FE-Model reduction in this paper. From modal analysis and the frequency response analysis results between full FE-Model and condensed model, the usefulness of reduced model is confirmed.
Keywords
FE-model reduction; craig-bampton model; superelement; satellite; frequency response function;
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