Characteristics of the first longitudinal-fourth bending mode linear ultrasonic motors

Taegone Park, Beomjin Kim, Myong Ho Kim, Kenji Uchino

Research output: Contribution to journalArticlepeer-review

41 Scopus citations


Linear ultrasonic motors using a combination of the first longitudinal mode and the fourth bending mode were designed and fabricated. The driving characteristics of the motors, which were composed of a straight metal bar bonded with piezoelectric ceramic vibrators as a driving element, were measured. Unimorph and bimorph ceramic vibrators were attached on three kinds of metal bars for constructing the stators of the linear motors. As results, motors made with the bimorph ceramic vibrators had higher velocity than motors of the unimorph vibrators. As a metal bar for stator, magnesium alloy, which has lower elastic coefficient than aluminum alloy, was better for the motors. 10.1143/JJAP.41.7139

Original languageEnglish (US)
Pages (from-to)7139-7143
Number of pages5
JournalJapanese Journal of Applied Physics
Issue number11 B
StatePublished - Nov 2002

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)


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