The shape memory alloy (SMA)-actuated separation devices that are currently used in small satellites were usually designed to handle large separation loads. As a result, they have complex structures, large footprints, and high power consumptions. In this paper, we report a simpler and more compact separation device. A design methodology for the load-shifting SMA actuator (LSSA) used in a device was developed. Four prototypes were fabricated and tested to demonstrate the design concept and the LSSA design methodology. Experiments showed that this separation device has the merits of a quick response time, compact size, and simple structure, which give it potential for small-satellite applications.
Design and Experimental Validation of Compact, Quick-Response Shape Memory Alloy Separation Device
Contributed by the Design Innovation and Devices of ASME for publication in the JOURNAL OF MECHANICAL DESIGN. Manuscript received November 14, 2012; final manuscript received October 9, 2013; published online November 26, 2013. Assoc. Editor: Diann Brei.
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Zhang, X., Yan, X., and Yang, Q. (November 26, 2013). "Design and Experimental Validation of Compact, Quick-Response Shape Memory Alloy Separation Device." ASME. J. Mech. Des. January 2014; 136(1): 011009. https://doi.org/10.1115/1.4025795
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