Modeling hysteresis in piezoceramic actuators
Modeling hysteresis in piezoceramic actuators
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DOI：
10.1016/0141-6359(95)00002-u
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发表时间：
1995-07
影响因子：
3.6
通讯作者：
P. Ge;M. Jouaneh
中科院分区：
文献类型：
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作者：
P. Ge;M. Jouaneh
压电陶瓷作动器的一个主要缺点是其开环控制精度受到滞后的严重限制。本文讨论了用Preisach模型来描述这些作动器的非线性滞回行为。利用该模型预测了压电陶瓷作动器在正弦输入和三角形输入下的响应。将预测结果与堆叠式压电陶瓷作动器的实验测量结果进行了比较。该模型在0-15 μm的整个工作范围内将执行器的滞回线还原到3%以内。这打开了将模型纳入控制回路以克服精度问题的可能性。
A major deficiency of piezoceramic actuators is that their open-loop control accuracy is seriously limited by hysteresis. This paper discusses the adaptation of the Preisach model to describe the nonlinear hysteresis behavior of these actuators. The adapted model is used to predict the response of a piezoceramic actuator to a sinusoidal input and a triangular input. The predictions are compared with experimental measurements on a stacked piezoceramic actuator. The model reproduces the hysteresis loop of the actuator to within 3% over the entire working range of 0–15 μm. This opens the possibility of incorporating the model into a control loop in order to overcome the accuracy problem.