Modeling and Control with Hysteresis of Piezoelectric Smart Materials Actuators

2013 ◽  
Vol 397-400 ◽  
pp. 1426-1429
Author(s):  
Yan Mei Liu ◽  
Zhen Chen ◽  
Xue Zheng Zhuang ◽  
Zhao Hui Liu
Keyword(s):  
Piezoelectric Actuator ◽  
Smart Materials ◽  
Piezoelectric Actuators ◽  
Recursive Identification ◽  
Uniform Density ◽  
Sensors And Actuators ◽  
Modeling And Control ◽  
Preisach Operator ◽  
Effective Use ◽  
And Control

Hysteresis hinders the effective use of piezoelectric smart materials in sensors and actuators. This paper proposes a hybrid model that can precisely portray hysteresis in piezoelectric actuators, which is constructed by a preisach operator with a piecewise uniform density function. Then, the corresponding inverse model for hysteresis is developed. It studies online recursive identification of hysteresis drift. Based on the obtained models, a method for simultaneous compensation of the hysteresis of piezoelectric actuator is applied to the control of system nonlinearities. Simulation and experimental results based on an IPMC actuator are provided to illustrate the proposed approach. The result verified the validity of the model and effectiveness of the controller.

scholarly journals Review of Modeling and Control of Magnetostrictive Actuators

Actuators ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 45 ◽  
Author(s):  
Valerio Apicella ◽  
Carmine Stefano Clemente ◽  
Daniele Davino ◽  
Damiano Leone ◽  
Ciro Visone
Keyword(s):  
Energy Density ◽  
Smart Materials ◽  
Scientific Literature ◽  
Piezoelectric Actuators ◽  
Industrial Applications ◽  
Direct Effects ◽  
Modeling And Control ◽  
Magnetostrictive Actuators ◽  
And Control

Magnetostrictive actuators play an important role in the perception of usefulness of smart materials and devices. Their applications are potentially wider than that of piezoelectric actuators because of the higher energy density and intrinsic robustness. However, the non-negligible hysteresis and complexity of their characteristics make the design and control quite difficult and has limited their diffusion in industrial applications. Nevertheless, the scientific literature presents a wide offer of results in design and geometries, modeling and control that may be exploited for applications. This paper gives a reasoned review of the main results achieved in the literature about design, modeling and control of magnetostrictive actuators exploiting the direct effects of magnetostriction (Joule and Wiedemann). Some perspectives and challenges about magnetostrictive actuators development are also gathered.

scholarly journals Analysis of Hysteresis-Free Creep of the Stack Piezoelectric Actuator

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Xueliang Zhao ◽  
Chengjin Zhang ◽  
Hongbo Liu ◽  
Guilin Zhang ◽  
Kang Li
Keyword(s):  
Fixed Point ◽  
Piezoelectric Actuator ◽  
High Speed ◽  
Creep Model ◽  
Modeling And Control ◽  
Creep Effect ◽  
Proposed Model ◽  
Series Of Experiments ◽  
Creep Models ◽  
And Control

A modified log-type creep model without hysteresis of the stack piezoelectric actuator is presented. For high-speed micro-/nanopositioning system, the time scale should be less than one second for creep modeling and control in the stack piezoelectric actuator. But creep effect was studied in the frame of minutes in previous works. Meanwhile, parameters of the classical creep models are hard to be determined. By the proposed model, the hysteresis and the creep effect can be separated. A series of experiments have been performed, where different staircase voltages have been applied to the actuator. There are two clear rules to follow in small duration and different heights to determine parameters. Firstly,L0starts from fixed point either in ascending stage or in descending stage and rotates clockwise. Secondly,γconverges to a small vicinity of a constant when the duration is small enough.

Piezo Polymer Films for Enhanced Acoustic Transmission Loss and Absorption

2008 ◽  
Author(s):  
Christopher E. Whitmer ◽  
Atul G. Kelkar
Keyword(s):  
Transmission Loss ◽  
Piezoelectric Materials ◽  
Cost Effective ◽  
Pvdf Film ◽  
Noise Mitigation ◽  
Sensors And Actuators ◽  
Modeling And Control ◽  
Driver Amplifier ◽  
Prohibitive Cost ◽  
And Control

The subject of this paper deals with the construction, characterization, modeling, and control of sensors and actuators made from piezoelectric polymers. The objective of this control was to improve the transmission loss and absorption characteristics of passive noise control materials by the addition of actively controlled component and to do so without a prohibitive cost. A brief background of piezoelectric materials and the practical considerations when using them is presented. The construction of piezo sensors and actuators from PVdF film is described, as is the development of cost effective driver, amplifier, and filter electronics for the system. In addition, the construction of an impedance tube testing apparatus is described. Then, the system is identified and control design models constructed. Next, the resonant controller structure utilized in preliminary experiments is presented. Finally, the experimental setup, investigation, and results of these actively controlled piezo samples are presented. Preliminary results show that collections of these resonant controllers are able to lead to significant (greater than 10dB on 30–50Hz bands) reductions. This would be a very effective method for tonal noise mitigation below 1500 Hz. Also presented are future improvements of the material sensing and new directions of research that are now in the experimental phase.

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