Comparison of various thin-walled composite beam models for thermally induced vibrations of spacecraft boom

Shen Z.; Hao S.; Li H.

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Comparison of various thin-walled composite beam models for thermally induced vibrations of spacecraft boom

机译：Comparison of various thin-walled composite beam models for thermally induced vibrations of spacecraft boom

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? 2023 Elsevier LtdA sufficiently accurate, yet computationally efficient prediction of thermomechanical behavior is essential for the structural design of spacecraft. This paper presents a novel modeling approach for thermally induced vibrations of thin-walled composite tubes in spacecraft, in which the generalized beam theory is employed, and meanwhile, the non-conventional shear and extension modes are introduced into it. Furthermore, a cross-sectional temperature model in terms of harmonic functions is developed to provide more accurate temperature field, which is performed by taking into account the strong couplings between average and perturbation temperatures and between perturbation temperatures. Combining the beam model and the temperature model, a thermal–structural finite element formulation for composite boom in space environment is established. By comparison to the finite shell element, the accuracy and characteristic feature of these new models are illustrated. The results show that the additional deformation modes may play a significant role in thermal–structural analysis of thin-walled composite beams.

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《Composite structures》 |2023年第9期|1.1-1.16|共16页
作者
Shen Z.; Hao S.; Li H.;
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作者单位

State Key Laboratory of Metastable Materials Science and Technology Yanshan University||Key Laboratory of Mechanical Reliability for Heavy Equipment and Large Structures of Hebei Province School of Civil Engineering and Mechanics Yanshan UniversityKey Lab;

State Key Laboratory of Metastable Materials Science and Technology Yanshan University||Key Laboratory of Mechanical Reliability for Heavy Equipment and Large Structures of Hebei Province School of Civil Engineering and Mechanics Yanshan University;

Key Laboratory of Mechanical Reliability for Heavy Equipment and Large Structures of Hebei Province School of Civil Engineering and Mechanics Yanshan University;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类
关键词
Finite element formulation; Generalized beam theory; Spacecraft structures; Thermally induced vibrations; Thin-walled composite beams;

Comparison of various thin-walled composite beam models for thermally induced vibrations of spacecraft boom

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