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Shape memory alloy actuator design: CASMART collaborative best practices and case studies |
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| Authors: | O Benafan J Brown F T Calkins P Kumar A P Stebner T L Turner R Vaidyanathan J Webster M L Young |
| Affiliation: | 1. Structures and Materials Division, NASA Glenn Research Center, Cleveland, OH, 44135, USA 2. Dynalloy, Inc., Tustin, CA, 92780, USA 3. The Boeing Company, Seattle, WA, 98124, USA 4. Department of Aerospace Engineering, Texas A&M University, College Station, TX, 77843, USA 11. Mechanical Engineering, Colorado School of Mines, Golden, CO, 80401, USA 5. Department of Mechanical Engineering, Northwestern University, Evanston, IL, 60208, USA 6. Structural Acoustics Branch, NASA Langley Research Center, Hampton, VA, 23681, USA 7. Advanced Materials Processing and Analysis Center (AMPAC), Mechanical, Materials, and Aerospace Engineering Department, University of Central Florida, Orlando, FL, 32816, USA 8. Rolls-Royce plc, Derby, UK 10. Department of Materials Science and Engineering, The University of North Texas, Denton, TX, 76203, USA 9. ATI Wah Chang, Albany, OR, 97321, USA |
| Abstract: | One goal of the Consortium for the Advancement of Shape Memory Alloy Research and Technology is to compile the collective design experiences of our member organizations into a single medium that researchers and engineers may use to make efficient and effective decisions when developing shape memory alloy (SMA) components and systems. Recent work toward this goal is presented through the framework of six fundamental design aspects we have identified, which include evaluation, alloy selection, processing and fabrication, testing and properties, modeling, and system integration considerations including control system design. Each aspect is documented in the light of enabling the design engineer to access the tools and information needed to successfully design and develop SMA systems. Application of these aspects is illustrated through case studies resulting from our own SMA designs. It is shown that there is not an obvious single, linear route a designer can adopt to navigate the path from concept to product. Each application brings unique challenges that demand a particular emphasis and priority for each engineering aspect involved in the development of a system actuated by SMAs. |
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