A new concept of a linear smart actuator

Awad Khidir Elwaleed, Nik Abdullah Mohamed, Mohd. Jailani Mohd Nor, Mohd. Marzuki Mustafa

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

This paper discusses the utilization of deflected flexible beams to amplify the displacement of a nickel titanium (NiTi) shape memory alloy (SMA) actuator and to provide linear motion. The actuator is composed of a SMA wire fixed eccentrically along a flexible beam dividing it into equally spaced segments. It is designed mainly to overcome the problem of limited displacement upon using SMA wires as actuators and also due to the high force provided by the shape memory alloy wire upon heating. A preliminary testing for the actuator was performed which proves the benefit of using beam actuators to obtain longer amplified linear displacements. System identification techniques were used to model the SMA actuator upon heating and cooling. An ON/OFF control was applied to the actuator using the identification models, which showed closeness between simulation and experimental results.

Original languageEnglish
Pages (from-to)244-249
Number of pages6
JournalSensors and Actuators, A: Physical
Volume135
Issue number1
DOIs
Publication statusPublished - 30 Mar 2007

Fingerprint

Actuators
actuators
shape memory alloys
Shape memory effect
wire
Wire
Identification (control systems)
Heating
heating
system identification
titanium alloys
Titanium
Nickel
nickel
Cooling
cooling
Testing
simulation

Keywords

  • Beam actuator
  • Shape memory alloy
  • System identification

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Instrumentation

Cite this

A new concept of a linear smart actuator. / Elwaleed, Awad Khidir; Mohamed, Nik Abdullah; Mohd Nor, Mohd. Jailani; Mustafa, Mohd. Marzuki.

In: Sensors and Actuators, A: Physical, Vol. 135, No. 1, 30.03.2007, p. 244-249.

Research output: Contribution to journalArticle

Elwaleed, Awad Khidir ; Mohamed, Nik Abdullah ; Mohd Nor, Mohd. Jailani ; Mustafa, Mohd. Marzuki. / A new concept of a linear smart actuator. In: Sensors and Actuators, A: Physical. 2007 ; Vol. 135, No. 1. pp. 244-249.
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