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主要针对空间系绳系统辅助返回的大气层再入条件进行了计算及相关影响因素的分析。首先描述了系绳辅助返回过程,再次建立了系统在轨道坐标系下的动力学模型、舱体回摆模型,给出了再入条件的计算过程。分析了不同轨道高度下绳长、最大偏离角、系绳质量、切断角对再入条件的影响以及满足再入条件下,不同轨道高度下的绳长范围。基于以上分析,给出了再入速度与轨道高度和绳长、最大偏离角与绳长、再入角与最大偏离角和绳长的解析表达式,给出了再入条件与绳长的二阶关系表达式,并进行了验证。该研究为今后利用系绳系统来实现辅助返回的相关参数的选择提供了一定的参考,为空间系绳系统辅助返回技术的研究提供了重要的理论依据。
The calculation of the atmospheric reentrant conditions for the assisted return of the space tether system and the analysis of related influencing factors are mainly carried out. First of all, the auxiliary return process of the tether is described. The dynamic model of the system in the orbital coordinate system and the swingback model of the cabin are established again, and the calculation process of the reentry condition is given. The effects of rope length, maximum deviation angle, tether quality and cutting angle on reentry conditions at different orbital altitudes are analyzed, and the range of rope lengths under different orbital altitudes is satisfied. Based on the above analysis, analytical expressions of reentry speed and orbit height, rope length, maximum deviation angle and rope length, reentry angle and maximum deviation angle and rope length are given. The re-entry conditions and rope length are given Order relational expression, and verified. This study provides some references for the future selection of the relevant parameters of the auxiliary return using the tether system and provides an important theoretical basis for the research on the auxiliary return technology of the tether system.