Development of rate independent Prandtl-Ishlinskii model for characterizing asymmetric hysteresis nonlinearities of SMA actuators

Shape memory alloy actuators (SMA) show asymmetric hysteresis loops between the input current and output displacement. Furthermore, the SMA actuators exhibit saturated output displacement at maximum and/or minimum input. A generalized Prandtl-Ishlinskii model is formulated to model hysteresis nonlin...

Full description

Saved in:
Bibliographic Details
Main Authors: Al Janaideh, M., Chun-Yi Su, Rakheja, S.
Format: Conference Proceeding
Language:English
Subjects:
Actuators
Data models
Density functionional theory
Generalized play hysteresis operator
Hysteresis
Hysteresis nonlinearities
Magnetic hysteresis
Mathematical model
Prandtl-Ishlinskii model
Predictive models
Shape memory alloy actuators
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Shape memory alloy actuators (SMA) show asymmetric hysteresis loops between the input current and output displacement. Furthermore, the SMA actuators exhibit saturated output displacement at maximum and/or minimum input. A generalized Prandtl-Ishlinskii model is formulated to model hysteresis nonlinearities of SMA actuators. In this model, a generalized play hysteresis operator is proposed and integrated with a density function to construct generalized Prandtl-Ishlinskii model. The formulated generalized Prandtl-Ishlinskii model can also describe hysteresis loops with saturated output displacement. The results suggest that unlike the classical Prandtl-Ishlinskii model, the proposed Prandtl-Ishlinskii can effectively characterize hysteresis nonlinearities of the SMA actuators.
ISSN:2159-6247
2159-6255
DOI:10.1109/AIM.2008.4601707