In this paper, a crack identification using Artificial Neural Network (ANN) is investigated to predict the crack depth in pipeline structure based on modal analysis technique using Finite Element Method (FEM). In various fields, ANN has become one of the most effective instruments using computational intelligence techniques to solve complex problems. This paper uses Particle Swarm Optimization (PSO) to enhance ANN training parameters (bias and weight) by minimizing the difference between actual and desired outputs and then using these parameters to generate the network. The convergence study during the process proves the advantage of using PSO based on two selected parameters. The data are collected from FEM based on different crack depths and locations. The provided technique is validated after collecting the data from experimental modal analysis. To study the effectiveness of ANN-PSO, different hidden layers values are considered to study the sensitivity of the predicted crack depth. The results demonstrate that ANN combined with PSO (ANN-PSO) is accurate and requires a lower computational time in terms of crack identification based on inverse problem.
Key Words
FEM dynamic analysis; experimental modal analysis; crack prediction; ANN; PSO
Address
(1) Meriem Seguini, Djamel Nedjar — Laboratory of Mechanic of Structures and Stability of Constructions LM2SC, Faculty of Architecture and Civil Engineering, Laboratory of Applied Mechanics, University of Sciences and Technology of Oran Mohamed Boudiaf, Bp 1505 Elmenouar Oran, Algeria
(2) Samir Khatir — Faculty of Civil Engineering, Ho Chi Minh City Open University, Ho Chi Minh City, Viet Nam
(3) Djilali Boutchicha — LMA, Mechanical Engineering Department, USTO-MB, BP 1055 El Menaour, Oran 31000, Algeria
(4) Magd Abdel Wahab — Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang 550000, Viet Nam
(5) Magd Abdel Wahab — Soete Laboratory, Faculty of Engineering and Architecture, Ghent University, Technologiepark Zwijnaarde 903, B-9052, Zwijnaarde, Belgium.
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