Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《China Mechanical Engineering》 2018-07
Add to Favorite Get Latest Update

Nonlinear Modeling and Parameter Identification of Hysteresis Characteristics on Piezoelectric Actuator Based on LS-SVM

QIAN Cheng;HU Hongsheng;College of Mechanical and Electrical Engineering,Jiaxing university;  
In order to identify hysteresis characteristics of piezoelectric actuators in the processes of applications,the hybrid modeling method of Preisach model and LS-SVM was adopted.Initial weighted coefficients inα-β plane were calculated based on Preisach model through first order reverse curves.Centroid of hysteresis units and initial weighted coefficients were used as inputs and outputs of the LS-SVM which optimized by genetic algorithm.The finer weighted coefficients were calculated based on the optimized model and desired hysteric model was set up.Through the contrast between results of simulated model and the experimental results,errors stay between 0.12% ~2.01% .Results show that the established model may accurately describe the hysteresis non-linearity of piezoelectric actuators and the proposed method is a practicable method.
【Fund】: 浙江省自然科学基金资助项目(Y1110313 LQ17E050010);; 浙江省公益性技术项目(2016C31051);; 嘉兴市科技计划资助项目(2016AY13003)
【CateGory Index】: TN384;TP18
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved