首页|Design of an inchworm actuator based on a ferromagnetic shape memory alloy composite
Design of an inchworm actuator based on a ferromagnetic shape memory alloy composite
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NSTL
Iop Publishing Ltd
A new inchworm actuator has been designed and fabricated based on a ferromagnetic shape memory alloy (FSMA) composite and the hybrid mechanism. The FSMA composite consists of a ferromagnetic material (soft magnet) and a superelastic grade shape memory alloy. The hybrid mechanism is found to provide relatively large force and stroke with fast response on the FSMA composite because it can be driven by a compact electromagnetic driver with high applied magnetic field gradient, providing a large stress capability and reasonably large strain. The inchworm actuator exhibits moderate output force and very large displacement, achieved by accumulating many small strokes based on the inchworm mechanism. The prototype inchworm actuator successfully produces 30N force and 65mms ~1 stroke velocity.
Liang, Y.、Taya, M.、Xiao, J.Q.、Xiao, G.
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Center for Intelligent Materials and Systems, Department of Mechanical Engineering, University of Washington, Box 352600, Seattle, WA 98195, United States
Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, United States
Micro Magnetics, Inc., Fall River, MA 02720, United States
NSTL
Iop Publishing Ltd
