Vibration-based damage identification in structures exhibiting axial and torsional response

被引：38

作者：

Duffey, TA ^{[1
]}

Doebling, SW ^{[1
]}

Farrar, CR ^{[1
]}

Baker, WE ^{[1
]}

Rhee, WH ^{[1
]}

机构：

[1] Univ Calif Los Alamos Natl Lab, Engn Sci & Applicat Div, Engn Anal Grp, Los Alamos, NM 87545 USA

来源：

JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME | 2001年 / 123卷 / 01期

关键词：

D O I：

10.1115/1.1320445

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A method is derived to detect and localize linear damage in a structure using the measured modal vibration parameters, This method is applicable when the vibration strain energy is stored in the axial or torsional modes, which differentiates it from previously derived strain-energy-based methods. The new method is compared to the previously derived flexibility-change method for comparison. Both methods are verified by application to an analytical eight degree of freedom model. Experimental validation for both methods is also presented by application to an experimental eight degree of freedom spring-mass structure.

引用

页码：84 / 91

页数：8