Design and analysis of a standing-wave trapezoidal ultrasonic linear motor

Yu Jen Wang, Yi Cheng Chen, Sheng Chih Shen

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


This study presents a standing-wave trapezoidal ultrasonic linear motor. The motor consists of a trapezoidal piezoceramic plate with slanted sidewalls and a clip fastener to achieve bidirectional linear motion. The prototype fabrication and experiments in this study confirm the validity of the proposed structure and simulation results, including the theoretical equations, the travel distance, output force, and clip force of the clip fastener. The proposed standing-wave trapezoidal ultrasonic linear motor is easy to assemble because it has only three essential components with a self-clip force on the slanted sidewalls of the trapezoidal piezoceramic plate. To reduce the sound level in the acoustic frequency range, a muted clip fastener with a pair of solid bronze rods inserted in the hollow space to decrease the emitted sound frequency was proposed. A trapezoidal piezoceramic plate sized 22 × 8 × 1.5 mm3 and providing a travel distance of 10.10 mm and an output force of 12.151 g at a driving voltage of 10 V is useful for compact products.

Original languageEnglish
Pages (from-to)2295-2303
Number of pages9
JournalJournal of Intelligent Material Systems and Structures
Issue number17
Publication statusPublished - 2015 Nov 1

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Mechanical Engineering


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