Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Strain Rate Self-Sensing for a Cantilevered Piezoelectric Beam

  • Nam, Yoonsu (Department of Mechanical Engineering, Kangwon National University) ;
  • Sasaki, Minoru (Department of Mechanical and Systems Engineering, Faculty of Engineering, Gifu University)
  • Published : 2002.03.01
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Abstract

This paper deals with the analytical modeling, and the experimental verification of the strain rate self-sensing method using a hybrid adaptive filter for a cantilevered piezoelectric beam. The piezoelectric beam consists of two laminated lead zirconium titanates (PZT) on a metal shim. A mathematical model of the beam dynamics is derived by Hamilton's principle and the accuracy of the modeling is verified through the comparison with experimental results. For the strain rate estimation of the cantilevered piezoelectric beam, a self-sensing mechanism using a hybrid adaptive filter is considered. The discrete parts of this mechanism are realized by the DS1103 DSP board manufactured by dSPACE$\^$TM/. The efficacy of this method is investigated through the comparison of experimental results with the predictions from the derived analytical model.

Keywords

References

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