bullet Sensors & Transducers Journal

    (ISSN 1726- 5479)

205.767

2008 e-Impact Factor

25 Top Downloaded Articles

Best Selling Articles 2012

Journal Subscription 2013

Editorial Calendar 2012

Submit an Article

Editorial Board

Current Issue

Sensors & Transducers book's cover

Sensors & Transducers Journal 2011

Sensors & Transducers Journal 2010

Sensors & Transducers Journal 2009

Sensors & Transducers Journal 2008

Sensors & Transducers Journal 2007

2000-2002 S&T e-Digest Contents

2003 S&T e-Digest Contents

2004 S&T e-Digest Contents

2005 S&T e-Digest Contents

2006 S&T e-Digest Contents

 

Best Articles 2011

 

 

 

Vol. 144, No. 9, September 2012, pp. 92-100

 

Bullet

 

Geometrical Amplification of SMA Actuator Displacement Using Externally Actuated Beam
 
1 Elwaleed Awad Khidir, 1 Nik Abdullah Mohamed, 2 Sallehuddin Mohamed Haris

1 Institute of Space Science, Faculty of Engineering and Built Environment,
Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia

2 Department of Mechanical and Materials Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia

Tel.: 0060142314544, fax: 00603-8921 6856,

E-mail: elwaleed@ukm.my

 

 

Received: 4 July 2012   /Accepted: 21 September 2012   /Published: 28 September 2012

Digital Sensors and Sensor Sysstems

 

Abstract: A major deficiency of shape memory alloy (SMA) actuators is that their displacement is limited. This paper discusses the utilization of deflected flexible beams to amplify the displacement of a SMA actuator. The actuator is composed of a SMA wire fixed eccentrically along a flexible beam dividing it into equally spaced segments. A geometrical model based on the assumption that the geometry of the beam when subjected to bending can be approximated by an arc (part of a circle). The model is built to compute the beam end displacement and deflection upon heating the SMA wire for different number of segments and different eccentricities. The model has been experimentally verified and the results showed that the model is useful to predict the geometrical behavior of the actuator.

 

Keywords: Shape memory alloy, Beam, Amplification

 

 

Buy this article online (it will be send to you in the pdf format by e-mail) or subscribe Sensors & Transducers journal

(12 issues per year plus special issues; 40 % discount for payment IFSA Members):

 

 

Sensors & Transducers journal subscription

450 $ US per year:

 

Buy this article for
14.95 $ US:

 

 
 

 

 
 

Alternatively we accept a money transfer to our bank account. Please contact for details: sales@sensorsportal.com

 

Download <here> the Library Journal Recommendation Form

 

 

 

 

 


1999 - 2012 Copyright , International Frequency Sensor Association (IFSA). All Rights Reserved.


Home - News - Links - Archives - Tools - Voltage-to-Frequency Converters - Standardization - Patents - Marketplace - Projects - Wish List - e-Shop - Sensor Jobs - Membership - Videos - Publishing - Site Map - Subscribe - Search

 Members Area -Sensors Portal -Training Courses - S&T Digest - For advertisers - Bookstore - Forums - Polls - Submit Press Release - Submit White Paper - Testimonies - Twitter - Facebook - LinkedIn