Paper Titles
Mechanical Design Analysis and Test in Support of the Market Introduction of a New Vehicle
p.37
Ultrasonic Cutting with High-Gain Blades
p.45
On Non-Ideal Simple Portal Frame Structural Model: Experimental Results under a Non-Ideal Excitation
p.51
Diagnosis of Noise Radiation Mechanisms from a Wind Turbine Generator
p.59
Novel Health Monitoring Procedure for Reinforced Concrete Slabs
p.65
The Design and Analysis of a New Type of Vibration Structure
p.71
Fatigue Life and Residual Strength Analysis of Steel-Composite Joints
p.81
Local Buckling of Axially Compressed, Pultruded GRP, WF-Section, Short Columns - Comparison of Experimental and FE Analysis Buckling Loads
p.87
Texture Analysis in Composites Formed from Waste Materials
p.93

Novel Health Monitoring Procedure for Reinforced Concrete Slabs

Article Preview

Abstract:

This research considers the problem for vibration based damage diagnosis in reinforced concrete slabs. It suggests the analysis of the time domain measured accelerations for the purposes of fault detection and quantification. The measured accelerations from different damage states of the slab are first subjected to initial transforms to bring them to vectors with reasonable component number. These vectors are further transformed using principal components analysis (PCA), which brings their coordinates down to two. In addition to reducing the number of measured acceleration points, PCA clusters the new vectors making distinguishable the different damage states. The results from the application of the suggested method convincingly demonstrate that the method can be applied for fault detection as well as for estimating the damage extent.

You might also be interested in these eBooks
Advances in Experimental Mechanics View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 1-2)

Pages:

65-70

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.1-2.65

Citation:

Cite this paper

Online since:

September 2004

Authors:

Irina Trendafilova, M. Imbabi

Keywords:

Principal Component Analysis (PCA), Structural Health Monitoring (SHM), Structural Vibrations

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2004 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] H.C. Tan, O.R. Famiyeisin, M.S. Imbabi, Computers and Structures vol. 79 (2001), p.2413.

Google Scholar

[2] I.T. Jolliffee, Principal Component Analysis, 2 nd Edition, (Springer-Verlag, 2002).

Google Scholar

[3] C.M. Bishop, Neural Networks for Pattern Reognition, (Oxford University Press, 1995).

Google Scholar

[4] K. Worden. and G., Manson, Proceedings of the 17th International Modal Analysis Conference. Orlando, Florida, (1999).

Google Scholar

[5] I. Trendafilova, W. Heylen, Mechanical Systems and Signal Processing vol. 17 No4 (2003) p.825.

Google Scholar

[6] S.W. Doebling C.R. Farrar, M.B. Prime and D.W. Shevitz, Shock and vibration digest, 30 (2) (1998) p.91.

Google Scholar

[7] N. Stubbs,S. Park, C. Sikorsky and S. Choi, International J. of System Science, vol. 31 No11 (2000) p.1361.

Google Scholar

[8] J Tou, R Gozales Pattern recognition principles (Addison Wesley Publishing Company, 1984).

Google Scholar