Design of Control Concepts for a Smart Beam Structure with Sensitivity Analysis of the System
Design of Control Concepts for a Smart Beam Structure with Sensitivity Analysis of the System
复制标题
智能梁结构控制概念设计及系统灵敏度分析
DOI:
10.1007/978-3-319-44507-6_6
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
Slomski
中科院分区:
文献类型:
--
作者:
Slomski
A smart structure is a structure that can reduce a structural vibration by means of the integration of one or more sensor, actuator, and controller. A sensor detects a vibration in the structure and transfers a signal to a controller. The controller, designed to compensate the structural vibration, then computes the desired control signal and sends it to an actuator. A piezoelectric ceramic patch is often used, as in the present study, as a sensor or an actuator in a smart structure. A smart structure with a properly designed controller can reduce the structural vibration without changing the structure’s physical dimensions. Since a smart structure contains more uncertainty factors, not least due to the additional interfaces in comparison to a passive structure, the smart structure should be well analyzed to ensure its reliability and robustness. This paper focuses on how to set up a numerical model for a smart beam structure, how to design its control concept, and how to investigate the controller’s robustness by means of the Design of Experiments (DoE) method (In this paper experiment refers to numerical simulation.). A full factorial design is used, in which the parameters of the smart structure are either varied in their distributed range or held constant, so that several structures are designed with slight variations. This study aims at determining, which controller is the most robust by comparing the performance for different structural variations of the smart structure. Only if a smart structure is connected to a robust controller, its reliability can be analyzed, which is the aim of further research.
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