Damage Localization in Systems with Unknown Inputs

Abstract:

Article Preview

The Dynamic Damage Locating Vector (DDLV) technique localizes damage by interrogating changes in transfer matrices G. It is shown that although G cannot be computed in a stochastic setting a surrogate matrix whose null space is related to that of G can be extracted and this matrix suffices. The paper reviews the theoretical support for the DDLV approach, discusses the constraints used to obtain the surrogate for G, and illustrates the technique using a 12-DOF shear beam monitored with 6 sensors.

Info:

Periodical:

Edited by:

L. Garibaldi, C. Surace, K. Holford and W.M. Ostachowicz

Pages:

107-112

Citation:

D. Bernal "Damage Localization in Systems with Unknown Inputs", Key Engineering Materials, Vol. 347, pp. 107-112, 2007

Online since:

September 2007

Authors:

Export:

Price:

$38.00

[1] Friswell, M.I. and Mottershead J.E., Finite Element Model Updating, KLUWER Academic Publisher, Dordrechts, The Netherlands, (1995).

[2] Beck, J.L., and Katafygiotis, L.S., in: Journal of Engineering Mechanics, ASCE, Vol. 124(4), pp.455-461, (1989).

[3] Bernal D., in: Journal of Engineering Mechanics, ASCE, Vol. 128(1), pp.7-14, (2002).

[4] Bernal D., in: AIAA Journal, Vol. 45(2) pp.374-381, (2007).

[5] Bernal, D., in: Journal of Engineering Mechanics, Vol. 132(6), pp.651-658, (2006).

[6] Ablowitz, M.J., and Fokas A.S., Complex Variables, Cambridge Texts in Applied Mathematics, Cambridge, United Kingdom, (2003).

0. 2 0. 4 0. 6 0. 8 1.

[2] [4] [6] [8] [10] [12] [0] 0. 2 0. 4 0. 6 0. 8 1.

[2] [4] [6] [8] [10] [12] WSI SAI LEVEL LEVEL.

0. 2 0. 4 0. 6 0. 8 1.

[2] [4] [6] [8] [10] [12] [0] 0. 2 0. 4 0. 6 0. 8 1.

[2] [4] [6] [8] [10] [12] WSI SAI LEVEL LEVEL.

Fetching data from Crossref.
This may take some time to load.