【摘要】 月球探测器着陆过程动力学分析是探测器总体设计中重要一步,论文以国际较为流行的四腿悬架式探测器模型为例,针对缓冲机构柔性变形对探测器着陆稳定性能影响利用子系统法进行了理论,推导并对其着陆过程进行了刚柔耦合动力学分析。结果表明,探测器缓冲机构柔性变形对着陆器过载系数产生重要影响。更多还原

【Abstract】 Along with the progress of sciences and technologies, a lot of explorations are taken in many countries or organizations in succes- sion. Lunar, the natural satellite of the earth, become a focus of the space discovery again recently because of its abundant resource and high value in use. Lunar exploration is also one of the most important projects in China. A primary objective of the probe in lunar is to soft-land a manned spacecraft on the lunar surface. The soft-landing system is the key composition of the lunar lander. In the overall design of lunar lander, the analysis of touchdown dynamics during landing stage is an important work. The rigid-flexible coupling dy- namics of a system with flexible cantilevers attached to the main lander is analyzed. The equations are derived from the subsystem method. Results show that the deformations of cantilevers have considerable effect on the overloading of the lunar lander system.更多还原