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

被引：47

作者：

Chen, Zhijiang ^{[1
]}

Li, Xiaotian ^{[1
]}

Ci, Penghong ^{[1
]}

Liu, Guoxi ^{[1
]}

Dong, Shuxiang ^{[1
]}

机构：

[1] Peking Univ, Dept Mat Sci & Engn, Coll Engn, Beijing 100871, Peoples R China

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2015年 / 86卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Finite element method - Piezoelectric motors - Ferroelectric ceramics - Vibration analysis - Elastic waves - Lead zirconate titanate - Linear motors - Piezoelectric devices - Plates (structural components) - Ultrasonic machine tools;

D O I：

10.1063/1.4914843

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

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 x 15 x 2 mm(3)) 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. (C) 2015 AIP Publishing LLC.

引用

页数：6

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