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    A novel preisach based neural network approach to hysteresis non-linearity modeling

    , Article Proceedings of the 2010 International Conference on Artificial Intelligence, ICAI 2010, 12 July 2010 through 15 July 2010, Las Vegas, NV ; Volume 1 , 2010 , Pages 299-305 ; 9781601321480 (ISBN) Firouzi, M ; Ghomi Rostami, M ; Bagheri Shouraki, S ; Iloukhani, M ; Sharif University of Technology
    2010
    Abstract
    In some systems with hysteresis behavior like Shape Memory Alloy (SMA) actuators and Piezo actuators, we essentially need an accurate modeling of hysteresis either for controller design or performance evaluation. One of the most interesting Hysteresis non-linearity identification methods is Preisach model in which hysteresis is modeled by linear combination of elemental operators. Despite good ability of Preisach modeling to extract main features of system with hysteresis behavior, cause of tough numerical nature of Preisach, it is not convenient to use in real-time control applications. In this paper we present a novel method based on Artificial Neural Network. For evaluation of proposed... 

    Hysteresis identification of shape memory alloy actuators using a novel artificial neural network based Presiach model

    , Article ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2010, 28 September 2010 through 1 October 2010 ; Volume 1 , 2010 , Pages 653-660 ; 9780791844151 (ISBN) Zakerzadeh, M. R ; Firouzi, M ; Sayyaadi, H ; Bagheri Shouraki, S ; Sharif University of Technology
    Abstract
    In systems with hysteresis behavior like Shape Memory Alloy (SMA) actuators and Piezo actuators, an accurate modeling of hysteresis behavior either for performance evaluation and identification or controller design is essentially needed. One of the most interesting hysteresis none-linearity identification methods is Preisach model which the hysteresis is modeled by linear combination of hysteresis operators. In spite of good ability of the Preisach model to extract the main features of system with hysteresis behavior, due to its numerical nature, it is not convenient to use in real time control applications. In this paper a novel artificial neural network (ANN) approach based on the Preisach... 

    Experimental comparison of some phenomenological hysteresis models in characterizing hysteresis behavior of shape memory alloy actuators

    , Article Journal of Intelligent Material Systems and Structures ; Volume 23, Issue 12 , 2012 , Pages 1287-1309 ; 1045389X (ISSN) Zakerzadeh, M. R ; Sayyaadi, H ; Sharif University of Technology
    SAGE  2012
    Abstract
    Among the phenomenological hysteresis models, the Preisach model, Krasnosel'skii-Pokrovskii model, and Prandtl-Ishlinskii model have found extensive applications for modeling hysteresis in shape memory alloys and other smart actuators. Since the mathematical complexity of the identification and inversion problem depends directly on the type of phenomenological hysteresis modeling method, choosing a proper phenomenological model among the mentioned models for modeling the hysteretic behavior of shape memory alloy actuators is a task of crucial importance. Moreover, the accuracy of the hysteresis modeling method in characterizing shape memory alloy hysteretic behavior consequently affects the... 

    Hysteresis nonlinearity identification by using RBF neural network approach

    , Article Proceedings - 2010 18th Iranian Conference on Electrical Engineering, ICEE 2010, 11 May 2010 through 13 May 2010 ; 2010 , Pages 692-697 ; 9781424467600 (ISBN) Firouzi, M ; Bagheri Shouraki, S ; Zakerzadeh, M. R ; Sharif University of Technology
    Abstract
    In systems with hysteresis behavior like magnetic cores, Piezo actuators, Shape Memory Alloy(SMA), we essentially need an accurate modeling of hysteresis either for design or performance evaluation; also in some control applications accurate system identification is needed. One of the famous methods of Hysteresis modeling is Preisach model. In this numerical method hysteresis is modeled by linear combination of smaller hysteresis loops as an elemental operator and local memory. In this paper we discuss those Radial Base artificial neural networks (RBF) which provides natural settings in accordance with the Preisach model. It is shown that the proposed approach can represent hysteresis... 

    Position control of shape memory alloy actuator based on the generalized Prandtl-Ishlinskii inverse model

    , Article Mechatronics ; Volume 22, Issue 7 , 2012 , Pages 945-957 ; 09574158 (ISSN) Sayyaadi, H ; Zakerzadeh, M. R ; Sharif University of Technology
    2012
    Abstract
    Hysteresis and significant nonlinearities in the behavior of Shape Memory Alloy (SMA) actuators encumber effective utilization of these actuator. Due to these effects, the position control of SMA actuators has been a great challenge in recent years. Literature review of the research conducted in this area shows that using the inverse of the phenomenological hysteresis models can compensate the hysteresis of these actuators effectively. But, inverting some of these models, such as Preisach model, is numerically a complex task. However, the generalized Prandtl-Ishlinskii model is analytically invertible, and therefore can be implemented conveniently as a feedforward controller for compensating...