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针对空间系绳系统在太空展开轨迹的控制律动态参数进行了研究。利用拉格朗日方程建立考虑系绳质量的系绳系统数学模型,采用带附加参数的修正张力控制律研究系绳系统的展开。主要对张力控制律的动态参数进行了优化设计,分析了动态参数对系绳系统展开过程中长度、速度、轨迹的影响,并对最优动态参数下的控制律进行适用性仿真分析。结果表明,动态参数的优化能有效改善空间系绳系统展开轨迹和速度,且优化出的动态参数,在一定长度范围内,对空间系绳系统物理展开试验有实际工程运用价值。
The dynamic parameters of the control law of space tether system trajectory in space are studied. The Lagrange equation is used to establish the tether system mathematical model considering the tether quality and the modified tension control law with additional parameters is used to study the tether system deployment. The dynamic parameters of the tension control law are optimized. The influence of dynamic parameters on the length, velocity and trajectory of the tether system is analyzed, and the applicability of the control law under the optimal dynamic parameters is simulated. The results show that the optimization of dynamic parameters can effectively improve the trajectory and speed of the space tether system and optimize the dynamic parameters. It is of practical engineering value to physically launch the space tether system within a certain length.