Structural health monitoring using frequency response functions and sparse measurements

被引：0

作者：

Schulz, MJ ^{[1
]}

Naser, AS ^{[1
]}

Thyagarajan, SK ^{[1
]}

Mickens, T ^{[1
]}

Pai, PF ^{[1
]}

机构：

[1] N Carolina Agr & Technol State Univ, Dept Mech Engn, Struct Dynam & Control Lab, Greensboro, NC 27411 USA

来源：

IMAC - PROCEEDINGS OF THE 16TH INTERNATIONAL MODAL ANALYSIS CONFERENCE, VOLS 1 AND 2 | 1998年 / 3243卷

关键词：

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The accuracy of damage detection techniques that are based on using vibration response measurements depends on the number of measurements that are taken over the surface of the structure. This paper examines the accuracy of locating structural damage using the damage vector method and a sparse distribution of sensors over the structure. An analytical beam model is used to compare the accuracy of locating damage using partial and full measurements. It is shown that damage can be located with a spatial resolution equal to the distance between the sensors on the structure. The technique requires measurement of rotational and translational frequency response functions, and that the excitation force be applied at a point on the structure where the response is measured. Experimentation is underway to determine the feasibility of the technique.

引用

页码：760 / 766

页数：7