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首页> 外文期刊>JSME International Journal. Series C, Mechanical Systems, Machine Elements and Manufacturing >Detection of Component Failures for Smart Structure Control Systems
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Detection of Component Failures for Smart Structure Control Systems

机译：智能结构控制系统的组件故障检测

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摘要

Uncertainties in the dynamics model of a smart structure are often of significance due to model errors caused by parameter identification errors and reduced-order modeling of the system. Design of a model-based Failure Detection and Isolation (FDI) system for smart structures, therefore, needs careful consideration regarding robustness with respect to such model uncertainties. In this paper, we proposes a new method of robust fault detection that is insensitive to the disturbances caused by unknown modeling errors while it is highly sensitive to the component failures. The capability of the robust detection algorithm is examined for the sensor failure of a flexible smart beam control system. It is shown by numerical simulations that the proposed method suppresses the disturbances due to model errors and markedly improves the detection performance.
机译：由于参数识别错误和系统降阶建模导致的模型错误，智能结构动力学模型中的不确定性通常很重要。因此，针对智能结构的基于模型的故障检测与隔离（FDI）系统的设计，需要针对此类模型不确定性的稳健性进行仔细考虑。在本文中，我们提出了一种鲁棒故障检测的新方法，该方法对未知建模错误引起的干扰不敏感，而对组件故障高度敏感。针对柔性智能束控制系统的传感器故障，检查了鲁棒检测算法的功能。数值仿真表明，该方法抑制了模型误差引起的干扰，明显提高了检测性能。

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