Volume 39 Issue 10
Oct.  2013
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Wu Jianyun, Wang Chunjie, Wang Hanet al. Model parameters updating of lunar lander[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(10): 1366-1369,1375. (in Chinese)
Citation: Wu Jianyun, Wang Chunjie, Wang Hanet al. Model parameters updating of lunar lander[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(10): 1366-1369,1375. (in Chinese)

Model parameters updating of lunar lander

  • Received Date: 19 Dec 2012
  • Publish Date: 30 Oct 2013
  • The parametric model of the lander was established, and the landing collision process was simplified as a spring-damper model. Parameters including stiffness, damping, force exponent and the maximum penetration depth were set to be updated. Landing stability plane was defined to determine whether the lander was overturned. Based on the ground stability experimental results, ADAMS and Isight were used to make co-simulation, and optimized super Latin square method was adopted to narrow the range of the updated parameters. Based on the model updating theory, adaptive simulated annealing method was adopted to the model parameters updating. It is proven that the effect of collection is obvious and the updated simulation model conforms better to the actual experimental prototype.

     

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