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首页> 美国政府科技报告 >Robust Control Design for Flight Control.
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Robust Control Design for Flight Control.

机译：飞行控制系统的鲁棒控制设计。

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The project studies the application of new and advanced methods of control law synthesis for robust stabilization with respect to a combination of both unstructured model uncertainty (arising from neglected parasitic dynamics) and structured model uncertainty (arising from parametric variations which occur as flight conditions change). Efforts have focused on the characterization of a class of nonlinear models for longitudinal dynamics of aircraft in level flight subject to changes in static stability. Such 'relaxed stability' aircraft configurations are currently at issue in a wide variety of advanced designs including commercial transport and high performance aircraft. The control design approach employs H-infinity synthesis methods for optimal robust stabilization for the unstructured model uncertainty, and the requirement of worst case (i.e., robust) design for parametric uncertainty is included using a minimax optimization criteria. This study has focused on a class of flight control models with physically based parametric uncertainty. For these models, the solution of the minimax or worst case design is achieved by a straightforward procedure which can be readily combined with the requirements for robustness to parasitic dynamics using the closed form solution of the optical robust stabilization method. (sdw)

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