中国计量大学学报2025，Vol.36Issue(4)：527-534,8.DOI:10.3969/j.issn.2096-2835.2025.04.004
基于P-I模型的率相关压电执行器迟滞建模与参数辨识
Modeling and parameter identification of hysteresis characteristics of rate-dependent piezoelectric actuators based on P-I models
摘要
Abstract
Aims:This paper aims to accurately characterize the rate-dependent hysteresis behavior of piezoelectric actuators.Methods:This study proposes an enhanced Prandtl-Ishlinskii(P-I)hysteresis model incorporating a frequency density function and a one-sided play operator.To overcome the limitations of the dung beetle optimizer(DBO),namely low convergence accuracy and susceptibility to local optima,an improved dung beetle optimizer(IDBO)was developed by integrating chaotic mapping,the Lévy flight strategy,and t-distribution mutation.An experimental platform was constructed to investigate the rate-dependent hysteresis characteristics of piezoelectric actuators,followed by parameter identification and curve fitting.Results:Experimental results demonstrated that the proposed enhanced P-I model combined with the IDBO-based parameter identification method could precisely describe the hysteresis behavior under varying excitation frequencies.Within 200 Hz excitation,the maximum relative error was below 6.2％,with a root mean square error of less than 12.3％.Conclusions:The proposed rate-dependent P-I model,when coupled with the IDBO algorithm,achieves superior modeling accuracy while reducing parameter dimensionality and accelerating convergence toward optimal parameters.关键词
压电执行器/蜣螂算法/P-I模型/迟滞/率相关Key words
piezoelectric actuators/dung beetle optimizer/Prandtl-Ishlinskii model/hysteresis/rate-dependent分类
信息技术与安全科学引用本文复制引用
胡阳,吴玉杭,刘璐,朱睿娜,孔明..基于P-I模型的率相关压电执行器迟滞建模与参数辨识[J].中国计量大学学报,2025,36(4):527-534,8.基金项目
国家自然科学基金青年科学基金项目(No.12202428) （No.12202428）
