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Stochastic Control-Oriented Modeling of Flexible Air-Breathing Hypersonic Vehicle

Author

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  • Yan-rui Wu
  • Peng-fei Yang
  • You-li Wu

Abstract

The flexible dynamics of commonly used air-breathing hypersonic vehicle model are not tractable for control design and the inevitable stochastic perturbations are usually neglected. Aiming at these deficiencies, reduced flexible dynamics are deducted in this paper and a stochastic control-oriented vehicle model is established accordingly. The responses of the original system to the deterministic and the stochastic part of the generalized force, which is treated as the input of the flexible dynamic system, are analyzed. After that, the simplified flexible dynamics is deduced to approximate the responses. The reduced flexible dynamics, which are tractable for control design since they greatly reduce the complexity of the original dynamics, are comprised of a simple function of the determined generalized force and an Ornstein-Uhlenbeck colored noise. Finally, the longitudinal dynamics in parametric strict feedback form are obtained by substituting the reduced flexible dynamics into the original model. The applicability of the simplified flexible dynamics is validated through the numerical simulations.

Suggested Citation

  • Yan-rui Wu & Peng-fei Yang & You-li Wu, 2018. "Stochastic Control-Oriented Modeling of Flexible Air-Breathing Hypersonic Vehicle," Mathematical Problems in Engineering, Hindawi, vol. 2018, pages 1-12, May.
    • Handle: RePEc:hin:jnlmpe:1648560
    DOI: 10.1155/2018/1648560
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