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Vibration Control of a Plate using a Self-sensing Piezoelectric Actuator and an Adaptive Control Approach

机译:使用自感应压电致动器的板的振动控制和自适应控制方法

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摘要

This article describes the active vibration control of a plate using a self-sensing actuator (SSA) and an adaptive control method. In a self-sensing actuator, the same piezoelectric element functions as both a sensor and an actuator so that the total number of piezoelectric elements required can be reduced. A method to balance the bridge circuit of the SSA was proposed and its effectiveness was confirmed by using an extra piezoelectric sensor, which is not necessary for balancing bridge circuits of SSA in future applications. A control system including the SSA and an adaptive controller using a finite impulse response (FIR) filter and the filtered-X LMS algorithm was established. The experimental results show that the bridge circuit was well balanced and the vibration of the plate was successfully reduced at multiple resonance frequencies below 1.2 kHz.
机译:本文介绍了使用自感应执行器(SSA)和自适应控制方法对板进行主动振动控制的方法。在自感致动器中,相同的压电元件既用作传感器又用作致动器,从而可以减少所需的压电元件的总数。提出了一种平衡SSA桥式电路的方法,并通过使用额外的压电传感器来确认其有效性,这对于在未来的应用中平衡SSA桥式电路不是必需的。建立了包括SSA和使用有限冲激响应(FIR)滤波器和Filtered-X LMS算法的自适应控制器的控制系统。实验结果表明,在低于1.2 kHz的多个谐振频率下,电桥电路具有良好的平衡性,并成功地减小了板的振动。

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