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Shape Memory Alloy Actuator Design: CASMART Collaborative Best Practices

[+] Author Affiliations
Othmane Benafan, Raj Vaidyanathan

University of Central Florida, Orlando, FL

Jeff Brown

Dynalloy, Inc., Tustin, CA

F. Tad Calkins

The Boeing Company, Seattle, WA

Parikshith Kumar

Texas A&M University, College Station, TX

Aaron Stebner

Northwestern University, Evanston, IL

Travis Turner

NASA Langley, Hampton, VA

John Webster

Rolls-Royce PLC, Derby, UK

Marcus L. Young

ATI Wah Chang, Albany, OR

Paper No. SMASIS2011-5237, pp. 493-503; 11 pages
doi:10.1115/SMASIS2011-5237
From:
  • ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
  • ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1
  • Scottsdale, Arizona, USA, September 18–21, 2011
  • ISBN: 978-0-7918-5471-6
  • Copyright © 2011 by ASME

abstract

Upon examination of shape memory alloy (SMA) actuation designs, there are many considerations and methodologies that are common to them all. A goal of CASMART’s design working group is to compile the collective experiences of CASMART’s member organizations into a single medium that engineers can then use to make the best decisions regarding SMA system design. In this paper, a review of recent work toward this goal is presented, spanning a wide range of design aspects including evaluation, properties, testing, modeling, alloy selection, fabrication, actuator processing, design optimization, controls, and system integration. We have documented each aspect, based on our collective experiences, so that the design engineer may access the tools and information needed to successfully design and develop SMA systems. Through comparison of several case studies, it is shown that there is not an obvious single, linear route a designer can adopt to navigate the path of concept to product. SMA engineering aspects will have different priorities and emphasis for different applications.

Copyright © 2011 by ASME

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