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http://dx.doi.org/10.5139/JKSAS.2002.30.4.106

Optimization of Spacecraft Structure by Using Coupled Load Analysis  

Hwang, Do-Soon (한국항공우주연구원)
Lee, Young-Sin (충남대학교 기계설계공학과)
Kim, In-Gul (충남대학교 항공우주공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.30, no.4, 2002 , pp. 106-113 More about this Journal
Abstract
In spacecraft system, structure subsystem has the mission of supporting all the components safely under various space environmental conditions. The safety of spacecraft structure is finally verified from the coupled load analysis, which is a branch of load analysis which combines the launch vehicle and satellite. This study introduces the optimization algorithm to reduce the weight of spacecraft structure under launch environmental conditions directly. The acceleration responses are obtained by the introduction of coupled load analysis, which lead to check the failure of spacecraft structural members. The results show a 12% saving of structural weight and this saving is mainly driven by the thickness of honeycomb core, which strongly affects the natural frequencies of platforms and panels.
Keywords
Coupled Load Analysis(CLA); Spacecraft Structure; Optimization; Launch Vehicle; Component Mode Synthesis; Craig-Bampton Model; Output Transformation Matrix; Stiffness Requirement;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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