A methodology for identification of damage in beams

Barbieri, Nilson; Barbieri, Renato; Silva, Hugo Augusto Tupan

doi:10.1080/17415977.2015.1047363

Cited by 4 publications

(4 citation statements)

References 23 publications

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“…Considerable researches in MSHM cover modalbased damage identification techniques. Some of them need complete modal data [31][32][33][34][35][36] and some others can perform with incomplete modal data. [37][38][39][40] One of these methods is Inverse Vibration Method (IVM) which is based on inverse vibration problem.…”

Section: Introductionmentioning

confidence: 99%

A stiffness-based method for damage detection in 3-D offshore jacket platforms using inverse vibration problem (IVP) technique

Tabeshpour

Abbaspour

Ahmadi

2022

Proceedings of the Institution of Mechanical Engineers, Part M:

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More attention has been paid to Damage detection in offshore jacket platforms (OJP) because of repair and maintenance issues. Damage detection using modal data from a few sensors is one of the main important subjects that researchers have paid attention to it. The inverse Vibration Problem (IVP) technique does not need modal data in all nodes of OJP but first modal data in different levels of platform and principal degrees of freedom could be sufficient. Since the complex structural model becomes a reduced shear building by implementing this technique, there must be a reduced equivalent stiffness matrix for the healthy structure to make the comparison for damage detection. This paper deals with the formulation and implementation of IVP technique in corporation of the proper method for calculation of equivalent level stiffness. The proper method was selected based on a comparison of modal data obtained from full and reduced models using comparison tools like the MAC coefficient. Also, damage detection in a typical OJP model under a specific damage scenario was investigated numerically and experimentally and the results show the reliable performance of the methodology. A damage detection flowchart is suggested to detect damage location properly. It is developed mainly based on geometrical couplings in OJP structure in damaged conditions and the method leads to damage location exactly and maximum error in damage prediction is obtained at about 12%.

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Section: Introductionmentioning

confidence: 99%

A stiffness-based method for damage detection in 3-D offshore jacket platforms using inverse vibration problem (IVP) technique

Tabeshpour

Abbaspour

Ahmadi

2022

Proceedings of the Institution of Mechanical Engineers, Part M:

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“…[17] A number of helpful studies based on PSO are also performed for structural damage detection. [18][19][20][21] There are other classical optimization algorithms as well, namely, pattern search and simulated annealing, successfully applied for structural damage identification in recent years. Kourehli et al presented a damage detection approach method based on pattern search and incomplete modal data.…”

Section: Introductionmentioning

confidence: 99%

“…[ 17 ] A number of helpful studies based on PSO are also performed for structural damage detection. [ 18–21 ]…”

Section: Introductionmentioning

confidence: 99%

Multiverse optimizer for structural damage detection: Numerical study and experimental validation

Ghannadi

Kourehli

2020

Structural Design Tall Build

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New optimization algorithms have been increasingly developed in the course of the recent years. The accuracy of identified results in optimization-based damage detection methods depends on the objective function and optimization algorithm. This paper employs multiverse Optimizer (MVO) to solve the optimization-based damage identification problem. Statistical results obtained by MVO are compared with those of sine cosine algorithm (SCA) and Harris hawks optimization (HHO) in order to perform a comparative study. Two objective functions are used in this optimization problem. The first one is based on the modal assurance criterion (MAC) and the second one on modified total modal assurance criterion (MTMAC). Numerical and experimental examples indicate that the combination of objective function based on MTMAC and MVO algorithm can provide accurate and reliable results in structural damage detection process. MAC is also rejected in competition with MTMAC. While using SCA-MTMAC, the accuracy of the results is acceptable in some cases. However, HHO-MTMAC gives weak results in most cases. MVO and SSA are the lowest, and HHO spends significantly more time in terms of computational cost.

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“…Zhong and Yang;Law (2004, 2016) suggested a gap-smoothing function to identify the location and extent of damage in the beam structure by using higher-order polynomials and mode shape curves. Barbieri et al (2015); Xu et al (2017) proposed a potential damage indication method to identify the accurate location of the damage in a steel beam and plate-like structures using a mean and Gaussian curvature mode shape and bispectrum theory based on the energy of operational mode shapes associated with low and high displacement modes on a dense and coarse grid.…”

Section: Introductionmentioning

confidence: 99%

Vibration Based Damage Detection in Plate-Like Structure Using Square of Mode Shape Curvature

Ramesh

Rao

2019

TECM

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In this current work, a new methodology based on the square of mode shape curvature (SMSC) is presented that relates the mode shapes and its curvature changes before and after the damage for localization and sizing of the surface crack in plate-type structures. The significance of this method is it has the capability to portray accurate shape and exact location of the surface crack in a plate-like structure which are related to low and high elastic modes on dense and coarse measurement grids. The efficiency of the proposed SMSC is examined using experimental and numerical data acquired from modal analysis on the aluminum plate containing single and multi-surface cracks with a fixed-free condition using non-contact measurement a scanning laser vibrometer and on simple finite element plate model. As evidence of experimental and numerical study results, highly accurate crack characterization has been attained through the proposed method. In implementing this method, only a few modes of the structure are required. Further, the impact of the mode order on the effectiveness of crack detection, boundary distortion treatment, and grid density analysis was also performed by the proposed method.

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A methodology for identification of damage in beams

Cited by 4 publications

References 23 publications

A stiffness-based method for damage detection in 3-D offshore jacket platforms using inverse vibration problem (IVP) technique

A stiffness-based method for damage detection in 3-D offshore jacket platforms using inverse vibration problem (IVP) technique

Multiverse optimizer for structural damage detection: Numerical study and experimental validation

Vibration Based Damage Detection in Plate-Like Structure Using Square of Mode Shape Curvature

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