| Autor: |
Yang, Hui, Guo, Hongwei, Liu, Rongqiang, Wang, Sicong, Liu, Yongbin |
| Předmět: |
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| Zdroj: |
Structural & Multidisciplinary Optimization; Apr2020, Vol. 61 Issue 4, p1731-1738, 8p |
| Abstrakt: |
A C-cross section thin-walled composite deployable boom (C boom) can be flattened and coiled elastically. Furthermore, C boom can be deployed by releasing stored strain energy. Finite element (FE) models of C booms are constructed based on a nonlinear explicit dynamics analysis. The full simulation is divided into six consecutive steps: flattening, end-compacting, releasing, coiling, holding, and deploying around a hub. An optimal design method for the coiling and deploying of the C boom is presented based on the response surface method (RSM). Twenty-seven sample points are obtained by using a full-factorial design of experiment method. Surrogate models of the maximum moment and stress during the fully simulated process, including the mass of the C boom, are created by the RSM. The maximum moment and mass are set as objectives, and the maximum stress is set as a constraint to increase deploying statue stiffness and enhance use times. A multi-objective optimization design of the C boom is performed by sequential quadratic programming algorithm. Lastly, FE models for the optimal design are built to validate the accuracy of the optimization and the response surface results. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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