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首页> 外文期刊>International Journal of Advanced Robotic Systems >Landing stability analysis for lunar landers using computer simulation experiments
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Landing stability analysis for lunar landers using computer simulation experiments

机译：使用计算机仿真实验的月球登陆器着陆稳定性分析

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In the overall design and performance prediction of spacecrafts intended to accomplish soft landing on the moon, touchdown dynamics analysis during the landing phase is one of the most important tasks. Due to uncertainties of the landing site and flight states of the vehicle at touchdown, the landing stability is systematically studied in this article by employing the techniques of computer experiments. Firstly, the landing dynamics simulation model of a lunar lander is established and verified by physical tests. Then, design of experiments and response surface methodology have been utilized to analyze the landing stability. Consequently, main effects of initial landing conditions (inputs) on landing dynamics responses (outputs) have been investigated. Response surface models for approximating relationships between inputs and outputs are also acquired. The worst sets of landing conditions and boundaries of initial velocities for stable landings are finally determined with the help of response surface models. The approach for landing stability analysis proposed in this article has been proven effective and efficient and provides valuable guidance for the lander design and analysis.
机译：在航天器的整体设计和性能预测中，旨在在月球上实现软着陆，着陆阶段的触地触控动力学分析是最重要的任务之一。由于登陆现场的不确定性和车辆的飞行状态在触地上，通过采用计算机实验的技术，在本文中系统地研究了着陆稳定性。首先，通过物理测试建立和验证月球着陆器的着陆动态模拟模型。然后，已经利用了实验和响应表面方法的设计来分析着陆稳定性。因此，研究了初始着陆条件（投入）对着陆动力响应（产出）的主要影响。还获取了用于近似输入和输出之间关系的响应表面模型。最终确定稳定着陆的最差的着陆条件和初始速度的边界是在响应表面模型的帮助下确定。本文提出的降落稳定性分析的方法已被证明是有效且有效的，并为着陆器设计和分析提供有价值的指导。

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