腿式月球着陆器静态稳定性研究

采用稳定裕度作为描述静态稳定性的物理量,推导了腿式月球着陆器各主要部分的几何参数及相对位置关系参数与着陆器静态稳定性之间关系表达式;分析了各主要参量的变化对稳定性的影响;并着重比较了三腿式与四腿式构型对稳定性的影响。分析表明在同等条件下四腿式结构较三腿式结构更稳定,可为腿式月球着陆器的设计和优化提供一定的理论依据。

Research on Static Stability of Lunar Lander with Legs

Stability margin is used to describe the static stability.The mathematical relationships between the static stability characteristics and the geometry and ubiety parameters of lunar lander with legs were derived.The effects of parametric quantitative change on static stability characteristics were analyzed.The static stability characteristics of lunar lander with three legs and four legs were compared.The results show that the lunar lander with four legs is more steady than the lander with three legs.The lunar lander with legs was designed and optimized based on these mathematical relationships and results.