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Application of shape memory alloy wire actuator for precision position control of a composite beam

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Abstract

In this paper are presented the design and experimental results of using a shape memory alloy (SMA) wire as an actuator for position control of a composite beam. The composite beam is honeycomb structured, having wires of SMA embedded in one of its face sheets for the purposes of active actuation. Nickel-titanium SMA wires were chosen as actuating elements due to their high recovery stress (>700 MPa) and tolerance to high strain (up to 8%). A simple proportional and derivative controller plus a feed-forward current is designed and implemented for controlling the tip position of the composite beam. Experiments have demonstrated the effectiveness of the SMA wire as an actuator for active position control of a composite beam.

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Authors and Affiliations

  1. Department of Mechanical Engineering, The University of Akron, 44325, Akron, OH

    Gangbing Song, P. C. Lam & T. S. Srivatsan

  2. Aeronautics and Astronautics Department, Naval Postgraduate School, 93943, Monterey, CA

    B. Kelly & B. N. Agrawa

Authors
  1. Gangbing Song
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  2. P. C. Lam
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  3. T. S. Srivatsan
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  4. B. Kelly
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  5. B. N. Agrawa
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Song, G., Lam, P.C., Srivatsan, T.S. et al. Application of shape memory alloy wire actuator for precision position control of a composite beam. J. of Materi Eng and Perform 9, 330–333 (2000). https://doi.org/10.1361/105994900770346006

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  • DOI: https://doi.org/10.1361/105994900770346006

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