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Modeling of a three degrees of freedom piezo-actuated mechanism

机译:三度自由压电机构的建模

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This paper presents the modeling and. experimentation of a three degrees of freedom (3-DOF) piezo-actuated mechanism. The displacements of the piezoelectric stack actuators are amplified with lever mechanisms to achieve large displacement output. In order to accurately model the mechanism, a comprehensive model, which uses the transfer matrix method to describe the dynamics characteristics and the modified Bouc-Wen hysteresis operator to represent the hysteresis, is presented. Ultimately, the proposed comprehensive model of the mechanism is experimentally investigated for its performance. Experimental results show that the proposed comprehensive model can accurately portray the hysteresis and dynamics characteristics of the 3-DOF piezo-actuated mechanism.
机译:本文呈现了建模和。 实验三次自由度(3-DOF)压电致动机构。 压电堆叠致动器的位移用杠杆机构放大以实现大的位移输出。 为了准确地模拟机制,呈现了一种综合模型,它使用传递矩阵方法来描述动态特性和改进的BOUC-WEN滞后操作者来表示滞后。 最终,建议的机制综合模型是通过实验研究其表现的。 实验结果表明,建议的综合模型可以准确地描绘三-COF压电致动机构的滞后和动力学特性。

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