Design and experimental evaluation of simultaneous periodic output feedback control for piezoelectric actuated beam structure
Design and experimental evaluation of simultaneous periodic output feedback control for piezoelectric actuated beam structure
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DOI：
10.1002/stc.258
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发表时间：
2009-04
影响因子：
5.4
通讯作者：
D. Ezhilarasi;M. Umapathy;B. Bandyopadhyay
中科院分区：
文献类型：
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作者：
D. Ezhilarasi;M. Umapathy;B. Bandyopadhyay
本文介绍了同步周期性输出反馈控制器的设计和实验实现，以使用并置的压电致动器和传感器来最小化结构振动。使用在线递归最小二乘参数估计获得压电悬臂梁的线性动力学模型。由simulink建模软件和dSPACE 1104控制器板组成的数字控制系统用于识别和控制。通过考虑三种不同长度和质量的悬臂梁结构来评估同步控制器的性能。通过在共振下激励结构来通过实验证明控制器的有效性。本文实现的同步周期输出反馈控制器的优点是独特的，因为公共控制器增益降低了三个对象的前两种振动模式，这在文献中与其他反馈控制器中并不常见。从实验结果可以看出，对于所有三个设备，使用同步输出反馈控制器，第一模式的振动大约减少了 75%，第二模式的振动大约减少了 60%。版权所有 © 2008 约翰·威利父子有限公司
This paper presents the design and experimental implementation of a simultaneous periodic output feedback controller to minimize structural vibration using collocated piezoelectric actuator and sensor. The linear dynamic model of piezoelectric‐bonded cantilever beams is obtained using online recursive least‐square parameter estimation. A digital control system that consists of simulink modelling software and dSPACE 1104 controller board is used for identification and control. The performance of simultaneous controller is evaluated by considering a cantilever beam structure of three different lengths and mass. The effectiveness of the controller is demonstrated experimentally by exciting the structures at resonance. The advantage of the simultaneous periodic output feedback controller implemented in this paper is unique in the sense that the common controller gain reduces the first two vibration modes of three plants, which is not commonly shown in the literature with other feedback controllers. From the experimental results it is observed that with the simultaneous output feedback controller the vibration reduction is approximately 75% for the first mode and 60% for the second mode for all the three plants. Copyright © 2008 John Wiley & Sons, Ltd.