Deployment Scheme of Deployable Cylindrical Flexible Structure with Large Storage Ratio

doi:10.3901/JME.2022.01.019

Abstract

Abstract: With the gradual exploration of space by mankind, the application of large-scale space deployable structures has become increasingly widespread, and the demand for high storage ratios has become increasingly urgent. Facing the needs of on-orbit space capsules, a cylindrical deployable flexible structure was designed, a two-stage, multi-dimensional structure deployment scheme based on origami technology was proposed. In response to the technical requirements of high storage ratio, the designed deployable flexible structure first performs in-plane radial deployment and then spatial longitudinal deployment. The storage ratio of this scheme can reach 98.6%. Based on the requirements of the first-order fundamental frequency, a parametric analysis of the modality of the deployable flexible structure is carried out, and the influence of the air pressure of the inflation tube and the prestress of the membrane surface is discussed. The finite element analysis software ABAQUS was used to conduct a dynamic analysis of the two-stage deployment process of the structure, which verified the smoothness and order of the process, and the morphological changes and forces were reasonable, which proved the feasibility and rationality of the schem design. Finally, the general calculation process of wrinkled membrane parameters is used to estimate the characteristics of the wrinkle and predict the wrinkle configuration at the corresponding position.

Key words: deployable structure, schematic design, modal analysis, deployment simulation, wrinkle prediction

CLC Number:

V443

CAI Jianguo, ZHONG Yihan, WANG Liwu, CHEN Xu, WANG Zizhe, ZHANG Qian, FENG Jian. Deployment Scheme of Deployable Cylindrical Flexible Structure with Large Storage Ratio[J]. Journal of Mechanical Engineering, 2022, 58(1): 19-28.

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