Damage detection by mode shape squares extracted from a passing vehicle

2012 ◽  
Vol 331 (2) ◽  
pp. 291-307 ◽  
Author(s):  
Yao Zhang ◽  
Longqi Wang ◽  
Zhihai Xiang
Keyword(s):  
Damage Detection ◽  
Mode Shape

scholarly journals Mode Shape-Based Damage Detection Method (MSDI): Experimental Validation

2021 ◽  
Vol 11 (10) ◽  
pp. 4589
Author(s):  
Ivan Duvnjak ◽  
Domagoj Damjanović ◽  
Marko Bartolac ◽  
Ana Skender
Keyword(s):  
Boundary Conditions ◽  
Damage Detection ◽  
Mode Shape ◽  
Experimental Validation ◽  
Detection Method ◽  
Dynamic Properties ◽  
Damage Index ◽  
Main Principle ◽  
The Difference ◽  
Different Levels

The main principle of vibration-based damage detection in structures is to interpret the changes in dynamic properties of the structure as indicators of damage. In this study, the mode shape damage index (MSDI) method was used to identify discrete damages in plate-like structures. This damage index is based on the difference between modified modal displacements in the undamaged and damaged state of the structure. In order to assess the advantages and limitations of the proposed algorithm, we performed experimental modal analysis on a reinforced concrete (RC) plate under 10 different damage cases. The MSDI values were calculated through considering single and/or multiple damage locations, different levels of damage, and boundary conditions. The experimental results confirmed that the MSDI method can be used to detect the existence of damage, identify single and/or multiple damage locations, and estimate damage severity in the case of single discrete damage.

Two-dimensional curvature mode shape method based on wavelets and Teager energy for damage detection in plates

2015 ◽  
Vol 347 ◽  
pp. 266-278 ◽  
Author(s):  
Wei Xu ◽  
Maosen Cao ◽  
Wiesław Ostachowicz ◽  
Maciej Radzieński ◽  
Ning Xia
Keyword(s):  
Damage Detection ◽  
Mode Shape ◽  
Two Dimensional ◽  
Teager Energy

Response surface methodology for damage detection using frequency and mode shape

Measurement ◽  
2018 ◽  
Vol 115 ◽  
pp. 258-268 ◽  
Author(s):  
Sarehati Umar ◽  
Norhisham Bakhary ◽  
A.R.Z. Abidin
Keyword(s):  
Response Surface Methodology ◽  
Damage Detection ◽  
Response Surface ◽  
Mode Shape
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