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

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

The Journal of the Acoustical Society of America ◽

10.1121/1.2933908 ◽

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

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Displacement Control of Piezoelectric Actuators Using Current and Voltage

IEEE/ASME Transactions on Mechatronics ◽

10.1109/tmech.2009.2037914 ◽

2011 ◽

Vol 16 (1) ◽

pp. 160-166 ◽

Cited By ~ 33

Author(s):

Pekka Ronkanen ◽

Pasi Kallio ◽

Matti Vilkko ◽

Heikki N. Koivo

Keyword(s):

Piezoelectric Actuators ◽

Displacement Control

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

Sensors and Actuators A Physical ◽

10.1016/j.sna.2020.112431 ◽

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

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

Micromachines ◽

10.3390/mi10030183 ◽

2019 ◽

Vol 10 (3) ◽

pp. 183 ◽

Cited By ~ 5

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.

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Frequency‐Dependent Behavior of Zonal Jet Variability

Geophysical Research Letters ◽

10.1029/2019gl086585 ◽

2020 ◽

Vol 47 (6) ◽

Author(s):

Erik A. Lindgren ◽

Aditi Sheshadri ◽

R. Alan Plumb

Keyword(s):

Frequency Dependent ◽

Dependent Behavior ◽

Jet Variability

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Frequency dependence of CO2 elimination and respiratory resistance in monkeys

Journal of Applied Physiology ◽

10.1152/jappl.1985.58.2.653 ◽

1985 ◽

Vol 58 (2) ◽

pp. 653-657 ◽

Cited By ~ 3

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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