Estimating damage in a rod from changes in node positions

Authors
Gladwell, GML Morassi, A
Citation
Gml. Gladwell et A. Morassi, Estimating damage in a rod from changes in node positions, INVERSE P E, 7(3), 1999, pp. 215-233
Citations number
21
Categorie Soggetti
Engineering Mathematics
Journal title
INVERSE PROBLEMS IN ENGINEERING
ISSN journal
10682767 → ACNP
Volume
7
Issue
3
Year of publication
1999
Pages
215 - 233
Database
ISI
SICI code
1068-2767(1999)7:3<215:EDIARF>2.0.ZU;2-6
Abstract
This paper is an analytical/experimental investigation of the effect of dam age on the nodes of free vibration modes of a thin rod in longitudinal vibr ation. The damage, a notch, is simulated by a simple spring. It is shown th at nodes move toward the notch. The direction and amount by which they move may be used to estimate the position and severity of the damage. Analytica l results agree well with experimental tests.