【作者】 彭晓旭； 郭振凯； 魏新江； 刘晓华；

【Author】 Xiaoxu Peng;Zhenkai Guo;Xinjiang Wei;Xiaohua Liu;School of Mathematics and Systems Science,Ludong University;School of Mathematics and Statistics Science,Ludong University;

【机构】 鲁东大学数学与统计科学学院；

【摘要】 超磁致伸缩作动器(Giant Magnetostrictive Actuator,GMA)的应力相关迟滞非线性成为其在工程应用中的一大阻碍因素.本文基于MPI模型(Modified Prandtl-Ishlinskii)利用Hammerstein模型对超磁致伸缩作动器(Giant magnetostrictive actuators,GMA)的应力相关迟滞非线性进行建模,以MPI模型代表Hammerstein模型中的静态非线性部分,以ARX模型(Autoregressive model with exogenous input)代表Hammerstein模型中线性动态部分,并给出了模型的辨识方法.更多还原

【Abstract】 The rate-dependent hysteresis in giant magnetostrictive actuators(GMA) is a major impediment to the engineering application.In this paper,based on MPI model(Modified Prandtl-Ishlinskii) using model of Giant Magnetostric-tive actuator(GMA).Modeling stress related hysteresis nonlinearity of the MPI model on behalf of the static nonlinear Hammerstein model,taking ARX model(Autoregressive model with exogenous input) on behalf of Hammerstein model of linear dynamic parts,and presents a model identification approach.更多还原