控制理论(社会学)
非线性系统
李雅普诺夫函数
参数统计
稳健性(进化)
车辆动力学
计算机科学
鲁棒控制
控制器(灌溉)
自动驾驶仪
空气动力学
自适应控制
系统动力学
控制工程
工程类
数学
航空航天工程
物理
控制(管理)
量子力学
人工智能
农学
生物化学
统计
化学
生物
基因
作者
Lisa Fiorentini,Andrea Serrani,Michael A. Bolender,David B. Doman
出处
期刊:Journal of Guidance Control and Dynamics
[American Institute of Aeronautics and Astronautics]
日期:2009-03-01
卷期号:32 (2): 402-417
被引量:491
摘要
This paper describes the design of a nonlinear robust adaptive controller for a flexible air-breathing hypersonic vehicle model. Because of the complexity of a first-principle model of the vehicle dynamics, a control-oriented model is adopted for design and stability analysis. This simplified model retains the dominant features of the higher-fidelity model, including the nonminimum phase behavior of the flight-path angle dynamics, the flexibility effects, and the strong coupling between the engine and flight dynamics. A combination of nonlinear sequential loop closure and adaptive dynamic inversion is adopted for the design of a dynamic state-feedback controller that provides stable tracking of the velocity and altitude reference trajectories and imposes a desired set point for the angle of attack. A complete characterization of the internal dynamics of the model is derived for a Lyapunov-based stability analysis of the closed-loop system, which includes the structural dynamics. The proposed methodology addresses the issue of stability robustness with respect to both parametric model uncertainty, which naturally arises when adopting reduced-complexity models for control design, and dynamic perturbations due to the flexible dynamics. Simulation results from the full nonlinear model show the effectiveness of the controller.
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