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Uncertainty analysis during space station redocking via generalized polynomial chaos

CHEN Rui1, TANG Shengjing1, SUN Guojiang2   

  1. (1. School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China;
     2. China Academy of Space Technology, Beijing 100094, China)
  • Online:2017-08-28 Published:2010-01-03

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Abstract:

Space station redocking is a long period process which undergoes uncertainties from external environment and space station itself. A dynamic model of redocking is derived by the Kane method, then the generalized polynomial chaos method is used to analyze the influence on attitude motion caused by uncertainties. Numerical simulations show that the efficiency and accuracy of the gPC method is better than the Monte Carlo sampling method, and if redocking begins from the “zero state”, uncertainties cause great impact on the process.

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