Journal of Shanghai Jiao Tong University (Science) ›› 2018, Vol. 23 ›› Issue (4): 465-.doi: 10.1007/s12204-018-1969-y

• •    下一篇

Multi-Objective Optimization of Torsion Springs for Solar Array Deployment

YANG Lili (杨丽丽), WANG Deyu (王德禹)   

  1. (State Key Laboratory of Ocean Engineering; Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, China)
  • 出版日期:2018-08-01 发布日期:2018-08-02
  • 通讯作者: WANG Deyu (王德禹) E-mail:dywang@sjtu.edu.cn

Multi-Objective Optimization of Torsion Springs for Solar Array Deployment

YANG Lili (杨丽丽), WANG Deyu (王德禹)   

  1. (State Key Laboratory of Ocean Engineering; Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, China)
  • Online:2018-08-01 Published:2018-08-02
  • Contact: WANG Deyu (王德禹) E-mail:dywang@sjtu.edu.cn

摘要: For solar array deployment, most existing studies mainly focus on modeling method of deployment dynamics, characteristics of hinges, and synchronization mechanisms. However, torsion springs, which work as the drive mechanisms, have hardly attracted people’s attention. In this study, the influence of the parameters of torsion springs on the deployment behavior of a solar array system with clearance joint is investigated by simulation experiments. The experimental results indicate that the deployment performances are very sensitive to the parameter values of the torsion spring. Suitable torsion springs are highly needed to improve the deployment dynamics of solar array system. Therefore, a multi-objective optimization method for the design of torsion springs is proposed. The objective of the optimization is to make the contact-impact force in revolute joint and the mass of the torsion spring minimum under the constraints of deployment time and structure strength. Finally, the effectiveness of the multi-objective optimization method is verified by an optimization example of solar array system.

关键词: solar array deployment, torsion spring, dynamic performances, contact-impact force, multi-objective optimization

Abstract: For solar array deployment, most existing studies mainly focus on modeling method of deployment dynamics, characteristics of hinges, and synchronization mechanisms. However, torsion springs, which work as the drive mechanisms, have hardly attracted people’s attention. In this study, the influence of the parameters of torsion springs on the deployment behavior of a solar array system with clearance joint is investigated by simulation experiments. The experimental results indicate that the deployment performances are very sensitive to the parameter values of the torsion spring. Suitable torsion springs are highly needed to improve the deployment dynamics of solar array system. Therefore, a multi-objective optimization method for the design of torsion springs is proposed. The objective of the optimization is to make the contact-impact force in revolute joint and the mass of the torsion spring minimum under the constraints of deployment time and structure strength. Finally, the effectiveness of the multi-objective optimization method is verified by an optimization example of solar array system.

Key words: solar array deployment, torsion spring, dynamic performances, contact-impact force, multi-objective optimization

中图分类号: