| 空间绳网有控展开方法及优化 |
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| 引用本文： | 司骥跃,庞兆君,杜忠华,冯广斌.空间绳网有控展开方法及优化[J].宇航学报,2021,42(4):487-495. |
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| 作者姓名： | 司骥跃 庞兆君 杜忠华 冯广斌 |
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| 作者单位： | 南京理工大学机械工程学院，南京210094 |
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| 基金项目： | 国家自然科学基金（11802130）；江苏省自然科学基金（BK20170819） |
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| 摘 要： | 针对影响空间绳网展开性能的绳网回弹现象，提出了一种基于拖曳绳张力控制的绳网展开控制方法。首先，使用质心追逐描述绳网的回弹现象，并针对追逐过程提出了使用拖曳绳控制的绳网展开方法。其次，以有效展开位移为优化目标，提出了一种基于遗传算法的最佳控制力优化策略。最后，基于弹簧质点法建立了绳网的动力学模型，并通过数值仿真对比了无控、恒力和变力控制下绳网的展开性能。结果表明，控制力优化策略可以成功优化出所需控制力曲线，提出的有控展开方法可以大幅提高绳网的有效展开位移，提升绳网的展开性能。
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| 关 键 词： | 空间绳网 展开优化 弹簧质点 遗传算法 |
| 收稿时间： | 2020-05-25 |
Deployment Method and Optimization of TetherNet
with Control |
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| SI Ji yue,PANG Zhao jun,DU Zhong hua,FENG Guang bin.Deployment Method and Optimization of TetherNet
with Control[J].Journal of Astronautics,2021,42(4):487-495. |
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| Authors: | SI Ji yue PANG Zhao jun DU Zhong hua FENG Guang bin |
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| Affiliation: | School of Mechanical Engineering, Nanjing University of
Science and Technology, Nanjing 210094, China |
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| Abstract: | A deployment method with control based on the tension
control of drag thread is proposed, which is used to restrain the rebound that
affects the deployment performance of the tether net.
Firstly, the rebound phenomenon is described by the chase of the center of
masses, and a method of deployment control is proposed. Thereafter, an
optimization strategy of control force based on a genetic algorithm is proposed
to optimize the effective deployment displacement. Finally, the mass spring damper method is used to model the
tether net, and the deployment performance of tether net with and without control is compared by using numerical
simulation. Results reveal that the optimization strategy of the control force
can optimize the required force successfully, and the deployment method with
control can significantly improve the effective displacement and the deployment
performance of the tether net. |
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| Keywords: | |
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