Experimental and theoretical study of vibrations of a cantilevered beam using a ZnO piezoelectric sensor

被引：2

作者：

Jooste, BR

Viljoen, HJ

Rohde, SL

vanRensburg, NFJ

机构：

[1] UNIV NEBRASKA, DEPT CHEM ENGN, LINCOLN, NE 68588 USA

[2] UNIV NEBRASKA, DEPT MECH ENGN, LINCOLN, NE 68588 USA

[3] UNIV NEBRASKA, CTR MAT RES & ANAL, LINCOLN, NE 68588 USA

[4] UNIV PRETORIA, DEPT MATH, PRETORIA 0001, SOUTH AFRICA

来源：

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A | 1996年 / 14卷 / 03期

关键词：

D O I：

10.1116/1.580377

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Piezoelectric sensors can measure vibrations of solid structures very accurately. A model of a cantilevered beam, with a ZnO film on one side is presented. Both viscous and internal damping are considered. The output of the sensor is modeled and matched with experimental results by adjusting the damping parameters. A theoretical formulation for damage is introduced. Experimental results for a damaged beam confirm the shift in frequencies to lower values. The model is used to identify the extent of the damage. (C) 1996 American Vacuum Society.

引用

页码：714 / 719

页数：6

共 10 条

[1] VIBRATION TECHNIQUE FOR NON-DESTRUCTIVELY ASSESSING INTEGRITY OF STRUCTURES [J].