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Shape memory alloy based motor

Sharma, SV and Nayak, MM and Dinesh, NS (2008) Shape memory alloy based motor. In: Conf NPEC", IISC, Bangalore - 19th Dec - 2007.

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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 150mm square, 20mm thick and uses SMA wire of 0·4mm diameter and 125mm of length in each phase.

Item Type: Conference Paper
Publisher: Sadhana
Additional Information: Copyright of this article belongs to Sadhana.
Keywords: Shape Memory Alloy (SMA);poly phase;rotary actuator;torque; ripple.
Department/Centre: Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology)
Date Deposited: 13 Oct 2011 11:46
Last Modified: 13 Oct 2011 11:46
URI: http://eprints.iisc.ac.in/id/eprint/40759

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