Optimization of a piezoelectric linear motor in terms of the contact parameters

Hyun Phill Ko, Sangsig Kim, Chong Yun Kang, Hyun Jai Kim, Seok Jin Yoon

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


The contact kinetics of piezoelectric linear motors determines the operational characteristics like speed and torque or transmitted mechanical power and efficiency. Piezoelectric linear motors are driven by tangential stress in the interface between tip of shaking beam and slider. A good contact between the tip and slider is necessary for a reliable analysis of the motor, which is needed for the optimization of its performance. The piezoelectric linear motor was fabricated and the characteristics of the motor were investigated by external conditions such as tip shape with different curvatures and contact force between the tip and the slider. It was found in this investigation that the optimal curvature of the tip and the contact force are curvature of 1 and 10, respectively, for the high actuating speed, and curvature of 1 and 40 N, respectively, for the high actuating force. Finally, tip shape has an influence on the characteristics of linear motor.

Original languageEnglish
Pages (from-to)322-326
Number of pages5
JournalMaterials Chemistry and Physics
Issue number2-3
Publication statusPublished - 2005 Apr 15

Bibliographical note

Copyright 2008 Elsevier B.V., All rights reserved.


  • Mobile elements
  • Shaking beam
  • Tip and curvature

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics


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