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。
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.
作者
张烽
王小锭
王书廷
吴胜宝
高朝辉
ZHANG Feng;WANG Xiaoding;WANG Shuting;WU Shengbao;GAO Zhaohui(Research and Development Department,China Academy of Launch Vehicle Technology,Beijing 100076,China)
出处
《宇航总体技术》
2021年第2期1-6,共6页
Astronautical Systems Engineering Technology
基金
国家自然科学基金项目(61703437)
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
Electrodynamic tethered deorbiting
Upper-stages
Tether deployment requirement
Control scheme design
