A standing wave linear ultrasonic motor operating in in-plane expanding and bending modes

Zhijiang Chen, Xiaotian Li, Penghong Ci, Guoxi Liu, Shuxiang Dong

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

A novel standing wave linear ultrasonic motor operating in in-plane expanding and bending modes was proposed in this study. The stator (or actuator) of the linear motor was made of a simple single Lead Zirconate Titanate (PZT) ceramic square plate (15 × 15 × 2 mm3) with a circular hole (D = 6.7 mm) in the center. The geometric parameters of the stator were computed with the finite element analysis to produce in-plane bi-mode standing wave vibration. The calculated results predicted that a driving tip attached at midpoint of one edge of the stator can produce two orthogonal, approximate straight-line trajectories, which can be used to move a slider in linear motion via frictional forces in forward or reverse direction. The investigations showed that the proposed linear motor can produce a six times higher power density than that of a previously reported square plate motor.

Original languageEnglish (US)
Article number035002
JournalReview of Scientific Instruments
Volume86
Issue number3
DOIs
StatePublished - Mar 1 2015

All Science Journal Classification (ASJC) codes

  • Instrumentation

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