Volume 34 Issue 4
Jul.  2014
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Article Navigation >  Chinese Journal of Space Science  > 2014  >  34(4): 489-496
Hu Ming, Kong Fei, Chen Wenhua, Li Wenjuan, Han Yadi, Wang Qingjiu. Multi-body Dynamics of Repeated Fold-unfold and Lock-unlock Solar Array[J]. Chinese Journal of Space Science, 2014, 34(4): 489-496. doi: 10.11728/cjss2014.04.489
Citation: Hu Ming, Kong Fei, Chen Wenhua, Li Wenjuan, Han Yadi, Wang Qingjiu. Multi-body Dynamics of Repeated Fold-unfold and Lock-unlock Solar Array[J]. Chinese Journal of Space Science, 2014, 34(4): 489-496. doi: 10.11728/cjss2014.04.489
shu

Multi-body Dynamics of Repeated Fold-unfold and Lock-unlock Solar Array

doi: 10.11728/cjss2014.04.489
  • 1.

    Zhejiang Province's Key Laboratory of Reliability Technology for Mechanical and Electrical Products, Zhejiang Sci-Tech University, Hangzhou 310027

  • 2.

    Department of Mechanical Engineering, Zhejiang University, Hangzhou 310027

  • Received Date: 2013-09-30
  • Rev Recd Date: 2014-03-19
  • Publish Date: 2014-07-15
    Abstract
  • This paper presents the dynamic characteristics of repeated fold-unfold and lock-unlock solar array, which is in a topological tree configuration. According to the first modal stiffness analysis, assumptions about solar array multi-body system are proposed. Deduced from Jourdain variation principle, dynamic model of solar array flexible multi-body system is built. Furthermore, the forward-inverse mixed dynamic model is established through forward recursive formulation and motion law of solar array hinges. In order to study the impact of flexible structures on solar array deployment, the motion parameters of solar array panels, such as rotation angle, angular velocity and angular acceleration, are obtained from numerical simulation, which is based on the structure and physical parameters of repeated fold-unfold and lock-unlock solar array prototype. The results can well predict dynamic behaviors of solar array during its deploying process. In conclusion, this study has laid a foundation for subsequent engineering applications of repeated fold-unfold and lock-unlock solar array.

     

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