Hysteresis modeling and displacement control of piezoelectric actuators with the frequency-dependent behavior using a generalized Bouc–Wen model

2016 ◽  
Vol 43 ◽  
pp. 299-307 ◽  
Author(s):  
Wei Zhu ◽  
Xiao-Ting Rui
Keyword(s):  
Piezoelectric Actuators ◽  
Displacement Control ◽  
Frequency Dependent ◽  
Dependent Behavior ◽  
Hysteresis Modeling

Hysteresis modeling of piezoelectric actuators with the frequency-dependent behavior using a hybrid model

2019 ◽  
Vol 234 (9) ◽  
pp. 1848-1858
Author(s):  
Cheng Qian ◽  
Qing Ouyang ◽  
Yulai Song ◽  
Wei Zhao
Keyword(s):  
Support Vector Machine ◽  
Least Squares ◽  
Hybrid Model ◽  
Piezoelectric Actuators ◽  
Support Vector ◽  
Rate Dependent ◽  
Nonlinear Hysteresis ◽  
Dependent Behavior ◽  
Hysteresis Modeling ◽  
Dependent Model

In order to overcome the problem of positioning inaccuracy caused by nonlinear hysteresis of piezoelectric actuators, a hybrid model based on least-squares support vector machine and Bouc–Wen model is proposed to model the rate-dependent hysteresis of piezoelectric actuators. A rate-independent Bouc–Wen model and its parameters identification method is established as the basis of least-squares Bouc–Wen model. Least-squares support vector machine, which is optimized by particle swarm optimization, is introduced to improve the Bouc–Wen model into a rate-dependent model by adjusting parameters of Bouc–Wen dynamically. Experiment is carried out to validate both Bouc–Wen model and the proposed least-squares Bouc–Wen model. The results show that the proposed least-squares Bouc–Wen method is a valid and a more precise method compared to the rate-independent Bouc–Wen model.

scholarly journals Estimating the frequency dependent behavior of marine sediment sound speeds using low frequency aircraft sound

2008 ◽  
Vol 123 (5) ◽  
pp. 3349-3349
Author(s):  
Alireza Amiri‐Simkooei ◽  
Mirjam Snellen ◽  
Dick G. Simons ◽  
Michael Buckingham
Keyword(s):  
Marine Sediment ◽  
Low Frequency ◽  
Frequency Dependent ◽  
Sound Speeds ◽  
Dependent Behavior

Displacement Control of Piezoelectric Actuators Using Current and Voltage

2011 ◽  
Vol 16 (1) ◽  
pp. 160-166 ◽  
Author(s):  
Pekka Ronkanen ◽  
Pasi Kallio ◽  
Matti Vilkko ◽  
Heikki N. Koivo
Keyword(s):  
Piezoelectric Actuators ◽  
Displacement Control

A new hysteresis modeling and optimization for piezoelectric actuators based on asymmetric Prandtl-Ishlinskii model

2020 ◽  
Vol 316 ◽  
pp. 112431
Author(s):  
Wen Wang ◽  
Ruijin Wang ◽  
Zhanfeng Chen ◽  
Zhiqian Sang ◽  
Keqing Lu ◽  
...  
Keyword(s):  
Piezoelectric Actuators ◽  
Modeling And Optimization ◽  
Hysteresis Modeling

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.

scholarly journals Frequency‐Dependent Behavior of Zonal Jet Variability

2020 ◽  
Vol 47 (6) ◽  
Author(s):  
Erik A. Lindgren ◽  
Aditi Sheshadri ◽  
R. Alan Plumb
Keyword(s):  
Frequency Dependent ◽  
Dependent Behavior ◽  
Jet Variability

Frequency dependence of CO2 elimination and respiratory resistance in monkeys

1985 ◽  
Vol 58 (2) ◽  
pp. 653-657 ◽  
Author(s):  
J. W. Watson ◽  
A. C. Jackson
Keyword(s):  
Frequency Dependence ◽  
Nonlinear Frequency ◽  
Frequency Dependent ◽  
Dependent Behavior ◽  
Frequency Independent ◽  
Respiratory System Resistance ◽  
The Relationship ◽  
High Frequency Oscillatory ◽  
Large Frequency ◽  
Co2 Elimination

In dogs, respiratory system resistance (Rrs) is frequency independent, and during high-frequency oscillatory ventilation (HFO) the relationship between CO2 elimination (VCO2) and frequency is linear. In contrast, we found in rabbits a large frequency-dependent decrease in Rrs with increasing frequency along with a nonlinear relationship between frequency and VCO2 (J. Appl. Physiol. 57: 354–359, 1984). We proposed that frequency dependent mechanical properties of the lung account for inter-species differences in the frequency dependence of gas exchange during HFO. In the current study we tested this hypothesis further by measuring VCO2 and Rrs as a function of frequency in a species of monkey (Macaca radiata). In these monkeys, Rrs decreased minimally between 4 and 8 Hz and in general increased at higher frequencies, whereas VCO2 was linearly related to frequency. This is further evidence supporting the hypothesis that nonlinear frequency-VCO2 behavior during HFO is related to frequency-dependent behavior in Rrs.

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