Position Control of Shape Memory Alloy Actuator Using Hysteresis Model

Kazuyuki Kodama, Tadahiro Hasegawa, Sumiko Majima

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The tracking control accuracy of shape memory alloy (SMA) actuator is limited due to inherent hysteresis nonlinearity. It has been said that a push-pull type mechanism and the insertion of a resistance feedback loop are useful to effects of the hysteresis. This paper presents a position control system for compensating the hysteresis without such constraints. It is composed of feedforward loop and PID feedback loop. In the feedforward loop, the desired input corresponding to the desired displacement is obtained from a model of hysteresis. The proposed control system is applied to a bias spring type SMA actuator that is more difficult to be controlled accurately than a push-pull type one. Experimental results show that tracking control performance is greatly improved.

Original languageEnglish
Pages (from-to)4708-4713
Number of pages6
JournalNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume65
Issue number640
DOIs
Publication statusPublished - 1999
Externally publishedYes

Fingerprint

Position control
Shape memory effect
Hysteresis
Actuators
Feedback
Control systems
Control nonlinearities

Keywords

  • Actuator
  • Hysteresis
  • Nonlinear Control
  • Positioning
  • Shape Memory Alloy

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

Position Control of Shape Memory Alloy Actuator Using Hysteresis Model. / Kodama, Kazuyuki; Hasegawa, Tadahiro; Majima, Sumiko.

In: Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C, Vol. 65, No. 640, 1999, p. 4708-4713.

Research output: Contribution to journalArticle

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