| 火箭末级离轨系统中电动力绳系释放条件分析与控制设计 |
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| 作者姓名： | 张烽 王小锭 王书廷 吴胜宝 高朝辉 |
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| 作者单位： | 中国运载火箭技术研究院研究发展部 |
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| 基金项目： | 国家自然科学基金项目（61703437） |
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| 摘 要： | 绳系释放过程是电动力绳系火箭末级离轨技术的关键,开展了绳系释放条件分析及控制方案设计。首先,基于"珠式"思想,建立离轨系统绳系释放过程的刚-柔耦合动力学模型。随后,基于数值仿真开展绳系释放条件分析。仿真结果分析发现,释放时火箭末级初始姿态对绳系释放稳定性影响较大,仅靠绳系拉力控制,系统稳定裕度较小,很难保证绳系释放稳定性。据此,进一步提出了一种绳系稳定释放控制方案,并通过数值仿真验证了控制方案的有效性。
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| 关 键 词： | 电动力绳系离轨 火箭末级 绳系释放条件 控制方案设计 |
Requirement Analysis and Control Design for Tether Deployment of Electrodynamic Tethered Upper-Stage Deorbit System |
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| Authors: | ZHANG Feng WANG Xiaoding WANG Shuting WU Shengbao GAO Zhaohui |
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| Institution: | Research and Development Department, China Academy of Launch Vehicle Technology |
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| Abstract: | Tether deployment is key to the electrodynamic tethered deorbit process for the removal of abandoned upper-stages. This paper studies the requirements and control design for the tether deployment phase. Based on "bead" philosophy, a rigid-flexible coupling dynamics is firstly formulated. Further, the requirement analysis of the initial attitude of upper-stage is developed via numerical simulations, which dedicates that the attitude control for the upper-stage is necessary. Then, a control scheme is proposed to ensure a stable deployment. Finally, numerical simulations show the effectiveness of the proposed scheme. |
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| Keywords: | Electrodynamic tethered deorbiting Upper-stages Tether deployment requirement Control scheme design |
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