基于J-A模型的压电双晶片执行器非线性建模及验证  

NonlinEar Modeling and Verification of Piezoelectric Bimorph Actuator Based on Jiles-Atherton Model

作　　者：彭洪涛 凌杰 李成刚[1] 朱玉川[1] PENG Hongtao;LING Jie;LI Chenggang;ZHU Yuchuan(School of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《压电与声光》2025年第1期142-147,共6页Piezoelectrics & Acoustooptics

基　　金：航空科学基金资助项目(20220007052001)。

摘　　要：针对压电双晶片执行器的非线性建模问题,根据Hammerstein结构原理,将执行器系统线性动态模块与非线性静态模块串联,提出了基于Jiles-Atherton模型的压电双晶片建模及参数辨识方法,并结合有限元数值仿真和试验测试对比分析模型的准确性。静/动态对比结果显示,理论模型、有限元仿真及试验测试迟滞非线性分别为18.1%,17.9%,19.3%,理论模型、有限元仿真与试验测试的阶跃响应相对误差平均值分别为5.2%和4.1%,表明建模方法准确有效。To address the nonlinear modeling of piezoelectric bimorph actuators,a method is proposed based on the Hammerstein structure.This approach connects the linear dynamic and nonlinear static modules of the system in series,and a modeling and parameter identification method for piezoelectric bimorphs is introduced based on the Jiles-Atherton model.To verify the accuracy of the model,finite element simulations and experimental tests were conducted and compared.The static/dynamic comparison results indicated hysteresis nonlinearities of 18.1%,17.9%,and 19.3%for the theoretical model,simulation,and experiments,respectively.Additionally,the average relative errors in the step response of simulations and experimental tests with respect to the theoretical model were 5.2%and 4.1%,highlighting the accuracy and effectiveness of the proposed modeling approach.

关 键 词：压电双晶片 迟滞非线性 Hammerstein结构 物理模型 有限元分析 

分 类 号：TN384[电子电信—物理电子学]