Vibration of damaged beams under a moving mass: theory and experimental validation

Bilello, C.; Bergman, Lawrence A.

doi:10.1016/j.jsv.2003.01.001

Cited by 89 publications

(45 citation statements)

References 26 publications

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“…First natural frequency tends to decrease when there is damage (Salawu, 1997) whilst deflection increases (Bilello & Bergman, 2004). Nowadays, alternatives to the traditional SHM techniques are needed, given that many of these monitoring methodologies require the installation of complex and expensive sensing and data handling electronics.…”

Section: Introductionmentioning

confidence: 99%

Damage detection by drive-by monitoring using the vertical displacements of a bridge

Martínez¹,

O’Brien²,

Sevillano³

2016

Insights and Innovations in Structural Engineering, Mechanics and Computation

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Section: Introductionmentioning

confidence: 99%

Damage detection by drive-by monitoring using the vertical displacements of a bridge

Martínez¹,

O’Brien²,

Sevillano³

2016

Insights and Innovations in Structural Engineering, Mechanics and Computation

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“…Bilello and Bergman (2004) provided an analytical tool for the analysis of a damaged beam under a moving mass. Bellino et al (2009) presented a time-varying identification method to detect a crack in a beam with a moving mass.…”

Section: Introductionmentioning

confidence: 99%

Damage Detection Using Measurement Response Data of Beam Structure Subject to a Moving Mass

Lee

Eun²

2015

Lat. Am. j. solids struct.

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The moving load problem is divided into two typical types: moving force and moving mass. The moving mass problem includes the time-varying mass effect. This work considers damage detection of the beam structure subject to a moving load including the inertia effect based on the only measurement data from strain gages and accelerometers without any baseline data. This experiment compares the feasibility of damage detection methods depending on the measurement sensors of strain gages and accelerometers. The measurement data are transformed to the proper orthogonal modes (POMs) in the time domain and the frequency domain, respectively. The magnitude of the moving mass and its velocity are also evaluated as test variables in this experiment. It is shown in the beam tests that the measured strain data can be more explicitly utilized in detecting damage than the acceleration data, and the mass magnitude and its velocity affect the feasibility of damage detection.

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“…Bellino et al [2] presented a time-varying identification method to detect a crack in a beam with a moving mass. Considering that natural frequencies of real structures are affected by environmental conditions such as the mass and the velocity of the train, Bellino et al [3] established the relationship between the natural frequencies and the load characteristics. They proposed a damage identification method to detect the presence of damage in a railway bridge crossed by a train using the principal component analysis.…”

Section: Introductionmentioning

confidence: 99%

Damage detection by a moving mass on beam structure

Ahn¹,

Lee²,

Cho³

et al. 2015

Advanced Science and Technology Letters

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Abstract. The moving mass acts on beam structure as inertia force and includes the time-varying mass effect. This work considers damage detection of the beam structure subject to a moving mass based on the only measurement data from a strain gage and an accelerometer. This experiment investigates the feasibility of damage detection by the measurement of the inertia force and the output responses without any baseline data. The measurement data are transformed to the proper orthogonal modes (POMs) in the time domain. It is shown that the proposed method can be practically utilized by reducing the effect of the external noise.

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Vibration of damaged beams under a moving mass: theory and experimental validation

Cited by 89 publications

References 26 publications

Damage detection by drive-by monitoring using the vertical displacements of a bridge

Damage detection by drive-by monitoring using the vertical displacements of a bridge

Damage Detection Using Measurement Response Data of Beam Structure Subject to a Moving Mass

Damage detection by a moving mass on beam structure

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