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Vibration damping with shunted piezoceramics: Fundamentals and technical applications

机译：并联压电陶瓷的减振：基本原理和技术应用

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摘要

This paper describes the damping performance of shunted piezoceramics for passive IR-networks, negative capacitance shunts (LRC and the SSDI-switching technique. The calculations are based on a general description for mechanical structures with piezoelectric elements. Normalized parameters are introduced and the damping performance described by the generalized electromechanical coupling coefficient. For every electrical shunting the optimal network parameters are determined and the resulting maximum damping is compared. Additionally, a squealing disc brake and a bladed disc model are studied as technical applications. Practical realizations for the inclusion of the piezoelements and measurements are presented which validate the calculated damping performance. In particular, it is shown that the shunted piezoceramics are capable to suppress the brake squealing.
机译：本文介绍了无源红外网络中分流压电陶瓷的阻尼性能，负电容分流（LRC和SSDI开关技术），这些计算是基于对带有压电元件的机械结构的一般描述，并介绍了归一化参数和阻尼性能。用广义的机电耦合系数来描述，对于每个电分流器，确定最佳的网络参数，并比较由此产生的最大阻尼，此外，还研究了尖叫盘式制动器和叶片式盘片模型作为技术应用。提出了压电元件和测量方法，这些方法和方法可以验证所计算的阻尼性能，特别是表明，并联压电陶瓷能够抑制制动器的尖叫声。

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