Structural damage localization and evaluation based on modal data via a new evolutionary algorithm

Abstract

This paper is intended to present a method for the localization and evaluation of damage in plates based on the changes in natural frequencies and mode shapes of the damaged plate using an optimization approach. The colonial competitive algorithm is employed to detect damage (or damages) in plates by optimizing a damage function. The performance of the proposed method is demonstrated by implementing the technique to two examples; a shear wall and a four-fixed supported plate with and without modal data noise including one or a large number of damages. The results confirm the applicability and efficiency of the presented method in detecting damage localization and quantification in the shear walls. Furthermore, the proposed method is implemented to the four-fixed supported plate aimed at demonstrating the high sensitivity of the proposed method in quantitative estimation of damaged plate structures. Finally, the reliability of the presented method is explored through the comparison of the obtained results and those of the other methods. It is concluded that the proposed method can be viewed as a powerful and robust method for structural damage detection in plate structures.

A Hybrid Approach Based on the Combination of Adaptive Neuro-Fuzzy Inference System and Imperialist Competitive Algorithm: Oil Flow Rate of the Wells Prediction Case Study

“…This evolutionary algorithm has proven its superior capabilities in convergence rate and global optima achievement over conventional evolutionary algorithms such as genetic algorithm, and simulated annealing [26][27][28][29][30][31][32][33] . Fig.…”

Model-Based Damage Localization Using the Particle Swarm Optimization Algorithm and Dynamic Time Wrapping for Pattern Recreation

“…A common practice among these past works is the use of simplified FE models, using beam elements, with the methods applied on truss-like structures. On the other hand, few of the past researchers have incorporated more detailed FE models also using plate elements [ 19 , 20 , 21 ]. Additionally, two review articles [ 22 , 23 ] can give a broader view to the reader on the specific subject.…”

Vibration-Based Damage Detection Using Finite Element Modeling and the Metaheuristic Particle Swarm Optimization Algorithm

“…The authors of the above-mentioned literature used only simplified FE models with beam elements for truss-like structures. On the other hand, Nicknam and Hosseini [ 19 ], Vo-Duy et al [ 20 ], and Baghi [ 21 ] have incorporated FE models with plate elements into their procedures to detect damage. Two review articles [ 22 , 23 ] can give a broader view to the reader on the specific subject, mentioning in more detail the algorithms that have been used, different metrics, strategies, and methods.…”