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探测器安全着陆是行星探测的关键环节,而目前着陆成功率偏低,进行安全着陆风险研究有着非常现实的工程需求.为此,首先分析探测器结构与着陆方式,梳理行星表面影响安全着陆的主要因素,明确着陆安全判据,然后基于蒙特卡罗思想,模拟行星表面地貌和探测器着陆方式,给出了探测器在盲降下安全着陆概率估计的仿真方法.在此基础上,考虑探测器尺寸和着陆区域面积,对探测器安全着陆概率进行敏感性分析,结果表明探测器的尺寸对安全着陆概率有显著影响.
The safety landing of the detector is a key link in the exploration of the planet, and the landing success rate is low at present, so there is a very realistic engineering requirement to study the safety landing risk.Therefore, we first analyze the structure of the detector and the landing mode, The main factors that make the landing safety criterion clear, and then based on Monte Carlo thinking, simulating the planet surface topography and the detector landing pattern, gives the simulation method of the probability of the safety landing probability of the detector under the blind landing, and on this basis, Size and landing area, the sensitivity analysis of the probabilistic landing probability of the detector shows that the size of the detector has a significant impact on the probability of safe landing.