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Shape memory alloy based motor

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Abstract

Design and characterization of a new shape memory alloy wire based Poly Phase Motor has been reported in this paper. The motor can be used either in stepping mode or in servo mode of operation. Each phase of the motor consists of an SMA wire with a spring in series. The principle of operation of the poly phase motor is presented. The motor resembles a stepper motor in its functioning though the actuation principles are different and hence has been characterized similar to a stepper motor. The motor can be actuated in either direction with different phase sequencing methods, which are presented in this work. The motor is modelled and simulated and the results of simulations and experiments are presented. The experimental model of the motor is of dimension 150 mm square, 20 mm thick and uses SMA wire of 0·4 mm diameter and 125 mm of length in each phase.

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Authors and Affiliations

  1. Indian Space Research Organisation, Bangalore, 560 094, India

    S. V. Sharma & M. M. Nayak

  2. Indian Institute of Science, Centre for Electronics Design and Technology, Bangalore, 560 012, India

    N. S. Dinesh

Authors
  1. S. V. Sharma
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  2. M. M. Nayak
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  3. N. S. Dinesh
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Correspondence to S. V. Sharma.

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Sharma, S.V., Nayak, M.M. & Dinesh, N.S. Shape memory alloy based motor. Sadhana 33, 699–712 (2008). https://doi.org/10.1007/s12046-008-0052-z

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  • DOI: https://doi.org/10.1007/s12046-008-0052-z

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