Modeling rate-dependent hysteresis in piezoelectric actuators

2004 ◽  
Author(s):  
Wei Tech Ang ◽  
F.A. Garmon ◽  
P.K. Khosla ◽  
C.N. Riviere
Keyword(s):  
Piezoelectric Actuators ◽  
Rate Dependent

scholarly journals Nonlinear Hysteresis Modeling of Piezoelectric Actuators Using a Generalized Bouc–Wen Model

Micromachines ◽  
2019 ◽  
Vol 10 (3) ◽  
pp. 183 ◽  
Author(s):  
Jinqiang Gan ◽  
Xianmin Zhang
Keyword(s):  
Least Squares Method ◽  
Compliant Mechanism ◽  
Nonlinear Least Squares ◽  
Piezoelectric Actuators ◽  
Positioning Accuracy ◽  
Rate Dependent ◽  
Nonlinear Hysteresis ◽  
Relaxation Functions ◽  
Hysteresis Modeling ◽  
Nonlinear Least Squares Method

Hysteresis behaviors exist in piezoelectric ceramics actuators (PCAs), which degrade the positioning accuracy badly. The classical Bouc–Wen (CB–W) model is mainly used for describing rate-independent hysteresis behaviors. However, it cannot characterize the rate-dependent hysteresis precisely. In this paper, a generalized Bouc–Wen (GB–W) model with relaxation functions is developed for both rate-independent and rate-dependent hysteresis behaviors of piezoelectric actuators. Meanwhile, the nonlinear least squares method through MATLAB/Simulink is adopted to identify the parameters of hysteresis models. To demonstrate the validity of the developed model, a number of experiments based on a 1-DOF compliant mechanism were conducted to characterize hysteresis behaviors. Comparisons of experiments and simulations show that the developed model can describe rate-dependent and rate-independent hysteresis more accurately than the classical Bouc–Wen model. The results demonstrate that the developed model is effective and useful.

Sign in / Sign up

Export Citation Format

Share Document