Use of load generated by SMA for its position control with neutral network estimator

Senthilkumar, P and Umapathy, M (2013) Use of load generated by SMA for its position control with neutral network estimator. Journal of Vibration and Control, 7. pp. 1-12. ISSN 1077-5463

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This paper presents the position control of a shape memory alloy (SMA) wire actuator by measuring the load generated by the SMA and using a neural network as an estimator for displacement. The experimentation facility is designed and developed for the position control of the SMA. Gain scheduled proportional integral (GSPI) and pulse width modulated GSPI controllers are designed and implemented. The closed-loop performance of the position control system using the displacement estimated from the load measurement is the same as the performance obtained with the direct position feedback. The position control of the SMA actuator using the SMA load with the neural network estimator is an easily implementable method that does not affect the frequency of operation of the SMA actuator.

Item Type: Article
Additional Information: Copyright to this article belongs to M/s. Sage Publications
Uncontrolled Keywords: Shape memory alloy;Pulse width modulated controller;Neural network;Position control
Subjects: AERONAUTICS > Aeronautics (General)
Depositing User: Ms. Alphones Mary
Date Deposited: 03 Feb 2014 10:26
Last Modified: 03 Feb 2014 10:26

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