期刊
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
卷 56, 期 5, 页码 973-989出版社
SPRINGER
DOI: 10.1007/s00158-017-1810-5
关键词
Tape-spring hinge; Deployable structure; Space structure; Driving ability
资金
- National Natural Science Foundation of China [11072009]
- Beijing Education Committee Development Project [SQKM201610005001]
- Beijing University of Technology Basic Research Fund [001000514313003]
An optimal design approach is developed for a self-driven, self-locking tape-spring under a pure bending load in deployable space structures. A novel hinge with three tape springs is investigated and designed via an optimization process. Firstly, we investigate the steady-state moment and maximum stress of the hinge during deploying and folding processes using physics-based simulations. Experimental analyses are then conducted to verify the physics-based simulation results. Secondly, a parametric analysis is carried out to prove that both the tape spring thickness and subtended angle have significant effect on steady-state moment. A Response Surface Methodology (RSM) is employed to define an optimal surrogate model aimed at maximizing the steady-state moment, subjected to allowable stress. Finally, the Large Scale Generalized Reduced Gradient (LSGRG) optimization algorithm is used to solve the optimal design problem. Optimization results show that steady-state moment is increased by 19.5% while satisfying a maximum stress constraint. The proposed method is promising for designing novel deployable structures with high stability and reliability.
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