LOCATION OF DEFECTS IN STRUCTURES FROM MEASUREMENTS OF NATURAL FREQUENCIES

被引：1069

作者：

CAWLEY, P

ADAMS, RD

机构：

来源：

JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN | 1979年 / 14卷 / 02期

关键词：

D O I：

10.1243/03093247V142049

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A method of non-destructively assessing the integrity of structures using measurements of the structural natural frequencies is described. It is shown how measurements made at a single point in the structure can be used to detect, locate and quantify damage. The scheme presented uses finite-element analysis, since this method may be used on any structure. The principle may, however, be used in conjunction with other mathematical techniques. Only one full analysis is required for each type of structure. Results are presented from tests on an aluminium plate and a cross-ply carbon-fibre-reinforced plastic plate. Excellent agreement is shown between the predicted and actual damage sites and a useful indication of the magnitude of the defect is obtained. © 1979, Institution of Mechanical Engineers. All rights reserved.

引用

页码：49 / 57

页数：9

共 9 条

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[9]

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