Nonlinear Constitutive Modeling of Piezoelectric Ceramics

1st International Conference on Frontiers of Materials Synthesis and Processing

材料科学;化学

Xu, Jia^1,2 ; Li, Chao^1 ; Wang, Haibo^3 ; Zhu, Zhiwen^2

Department of Mechanics, Tianjin University, Tianjin, China^1

Tianjin Key Laboratory of Nonlinear Dynamics and Control, Tianjin, China^2

Fushun Technician College, Liaoning, China^3

关键词: Hysteresis phenomenon;    Hysteretic curve;    Nonlinear constitutive model;    Partial least square regression;    Van der Pol;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/274/1/012070/pdf
DOI  :  10.1088/1757-899X/274/1/012070

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Nonlinear constitutive modeling of piezoelectric ceramics is discussed in this paper. Van der Pol item is introduced to explain the simple hysteretic curve. Improved nonlinear difference items are used to interpret the hysteresis phenomena of piezoelectric ceramics. The fitting effect of the model on experimental data is proved by the partial least-square regression method. The results show that this method can describe the real curve well. The results of this paper are helpful to piezoelectric ceramics constitutive modeling.