MODAL-ANALYSIS OF NOTCHED BARS - TESTS AND COMMENTS ON THE SENSITIVITY OF AN IDENTIFICATION TECHNIQUE

被引:31
作者
DAVINI, C
MORASSI, A
ROVERE, N
机构
[1] Istituto di Meccanica Teorica ed Applicata, Università degli Studi di Udine
关键词
Bars (metal) - Identification (control systems) - Mathematical models - Measurement errors - Sensitivity analysis;
D O I
10.1006/jsvi.1995.0033
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
The results of most diagnostic techniques based on modal analysis strictly depend on the accuracy of the structural analytical model that one uses, on the measurement errors and on the severeness of the damage to be identified. The sensitivity of a particular damage identification technique is discussed and it is shown that the above aspects are crucial even when dealing with simple structural models.
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页码:513 / 527
页数:15
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