Substructure Damages and Excitations Identification Using Measured Response

Qing Xia Zhang; Zhong Dong Duan; Lukasz Jankowski

doi:10.4028/www.scientific.net/AMM.501-504.843

Paper Titles

Comparative Analysis of Davenport Wind Spectrum and Kaman Wind Spectrum in the Towering Structural Design
p.823

Application of Grey System Theory in the Dynamic Monitoring of Bridge
p.829

The Slope Monitoring Method Research
p.834

The Development and Application of 3D Monitoring Alarm Warning System in Tunnel Construction
p.839

Substructure Damages and Excitations Identification Using Measured Response
p.843

Non-Destructive Evaluation of Reinforcing Rebar Radius by Digital Image GPR Technique
p.847

Structural Damage Detection Using Static Test Data
p.852

Damage Localization of Structures Identified with a Deterministic-Stochastic Model
p.856

Experimental Evaluation of Vibration Effects Induced by Planed Railway Line on Surrounding Historic Tower
p.861

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 501-504Substructure Damages and Excitations...

Substructure Damages and Excitations Identification Using Measured Response

Abstract:

This paper proposes a methodology on simultaneous identification of substructure excitation and damage. Structural damages are simulated by virtual distortions which are computed together with unknown excitations using the measured responses through the intact isolated substructure model; the damage extent and type is then recovered by a comparison of the virtual and actual distortions. Unknown factors are reduced greatly which allows the method to be applied on practical complex structure. The computational cost is cutoff sharply. A damaged nonlinearity aluminum beam is used in the experimental verification. Both load and damage are successfully identified.

You might also be interested in these eBooks

Advances in Civil and Structural Engineering III

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 501-504)

Pages:

843-846

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.501-504.843

Citation:

Cite this paper

Online since:

January 2014

Authors:

Qing Xia Zhang*, Zhong Dong Duan, Lukasz Jankowski

Keywords:

Damage Identification, Load Identification, Structural Health Monitoring (SHM), Substructure

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] Ł Jankowski, Off-line identification of dynamic loads, Structural and Multidisciplinary Optimization, 2009, 37( 6): 609-623.

DOI: 10.1007/s00158-008-0249-0

Google Scholar

[2] H Inoue, H Ishida, K Kishimoto and T Shibuya, Measurement of impact load by using an inverse analysis technique: Comparison of methods for estimating the transfer function and its application to the instrumented Charpy Impact test, Japan Society of Mechanical Engineers International Journal, 1991, 34( 4): 453-458.

DOI: 10.1299/jsmea1988.34.4_453

Google Scholar

[3] Zhu. XQ, Law. SS, Damage detection in simply supported concrete bridge structure under moving vehicular loads [J]. Journal of Vibration and Acoustics, 2007, 129(1): 58-65.

DOI: 10.1115/1.2202150

Google Scholar

[4] Zhang K, Li H, Duan Z, etc. A probabilistic damage identification approach for structures with uncertainties under unknown input [J]. Mechanical Systems and Signal Processing, 2011, 25(4): 1126-1145.

DOI: 10.1016/j.ymssp.2010.10.017

Google Scholar

[5] Q Zhang, Ł Jankowski and Z Duan, Identification of coexistent load and damage, Structural and Multidisciplinary Optimization, 2010, 41( 2): 243-253.

DOI: 10.1007/s00158-009-0421-1

Google Scholar

[6] Holnicki-Szulc J (ed). Smart technologies for safety engineering[M] Wiley, Chichester, (2008).

Google Scholar

[7] Jilin Hou, L. Jankowski, Jinping Ou. Experimental study of substructure isolation method for local health monitoring , Structural Control & Health Monitoring. 2012, 19(4): 491-510.

DOI: 10.1002/stc.443

Google Scholar