Volume 39 Issue 9
Sep.  2013
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Song Shunguang, Wang Chunjie. Landing stability analysis of the lunar lander based on Monte Carlo approach[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(9): 1192-1196. (in Chinese)
Citation: Song Shunguang, Wang Chunjie. Landing stability analysis of the lunar lander based on Monte Carlo approach[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(9): 1192-1196. (in Chinese)

Landing stability analysis of the lunar lander based on Monte Carlo approach

  • Received Date: 08 Oct 2012
  • Publish Date: 30 Sep 2013
  • A multi-body touchdown dynamics simulation model was established for predicting landing performances of the lunar lander. Because of the uncertainty of the landing site and initial landing conditions of the lander at touchdown, a Monte Carlo dynamic analysis was performed to study the landing stability of the lunar lander. A stopping rule based on the relative error of the mean estimate was adopted for determining the run length of the Monte Carlo simulation. Through the landing simulation experiments on the lunar surface with a certain slope, statistical results of the landing performance parameters such as the means, variances and corresponding confidence intervals were obtained and the reliability for stable landing was finally computed.

     

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