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Experimental investigation of the thermally induced vibration of a space boom section |
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| Authors: | SU XinMing;ZHANG JunHui;WANG Jing;BI YanQiang;QIE DianFu;XIANG ZhiHai;XUE MingDe;Beijing Institute of Spacecraft Environment Engineering;College of Architecture and Civil Engineering North China University of Technology;Science and Technology on Reliability and Environmental Engineering Laboratory Beijing Institute of Spacecraft Environment Engineering; |
| Institution: | Key Laboratory of Applied Mechanics, School of Aerospace Engineering, Tsinghua University; |
| Abstract: | Thermally induced vibration(TIV)is a typical failure of large-scale space structures.This paper reports a laboratory experiment that aims to investigate this unusual structural behavior of complex engineering structures.With the help of a Fourier finite element program,the fixing of a space boom section is well designed so that the TIV can be successfully observed.Although the observed torsional vibration mode is different from the bending vibration mode predicted by the classic theory based on a simple beam model,it can be successfully explained by the general thermal structural interaction theory.This demonstrates the validity of the theoretical model and the necessity of using finite element program to analyze complex engineering structures. |
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