Analysis of shaking beam actuator for piezoelectric linear ultrasonic motor

Kyongjai Lee, Dong Kyun Lee, Sergejus Borodinas, Piotr Vasiljev, Sahn Nahm, Seok Jin Yoon

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


In this paper, piezoelectric linear ultrasonic motors (PLUM) have been investigated on the elliptic trajectory of a contact point in shaking beam, which has been accomplished by two resonance vibration modes of the actuators. The actuators have generated the vibration modes, longitudinal and flexural, by two longitudinal mechanical vibrations with phase difference of π/2. Modal and harmonic analysis of the shaking beam actuator were performed by the finite element method (FEM) to calculate a resonance frequency and a modal shape and to perform harmonic response. Experimental results proved that a contact point of the PLUM tends to move with an elliptic trajectory.

Original languageEnglish
Pages (from-to)1508-1513
Number of pages6
JournalIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Issue number11
Publication statusPublished - 2004 Nov

ASJC Scopus subject areas

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering


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