A time-domain approach for damage detection in beam structures using vibration data with a moving oscillator as an excitation source

Majumder, Luna; Manohar, C.S.

doi:10.1016/s0022-460x(02)01555-9

Cited by 104 publications

(54 citation statements)

References 12 publications

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“…In the last few decades, many damage identification methods have been developed using the vibration data in frequency domain [1][2][3][4]. Moreover, with the advantage of massive vibration data, methods in time domain [5][6][7][8] emerged serve as a more reliable but complicated aspect in damage identification.…”

Section: Introductionmentioning

confidence: 99%

A two-step approach for damage detection in beam based on influence line and bird mating optimizer

Tan¹,

Lu²

2017

Vib. proced.

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Abstract. This paper presents a two-step approach for structural damage identification in beam structure using the influence line and bird mating optimizer (BMO). Local damage is simulated as the reduction of the elemental Young's modulus and mass of beam element. The technique for damage localization based on influence line and its derivatives before and after damage for beam structure was outlined. An objective function comprised of dynamic acceleration is utilized for BMO algorithm. The dynamic response data under external force is calculated by Newmark integration method. Numerical examples of a simply supported beam was investigated. Effect of measurement noise is studied. Studies in the paper indicate that the proposed method is efficient and robust for identifying damages in beam structures.

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Section: Introductionmentioning

confidence: 99%

A two-step approach for damage detection in beam based on influence line and bird mating optimizer

Tan¹,

Lu²

2017

Vib. proced.

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“…Structural Health Monitoring (SHM) addresses the continuous monitoring of a structure in terms of static and dynamic response, including the diagnoses of the onset of anomalous structural behavior (Moyo and Brownjohn, 2002). Non-destructive structural damage detection, in this regard, is becoming an important aspect of integrity assessment for aging, extreme-event affected or inaccessible structures (Kisa, 2004;Rucka and Wilde, 2006;Farrar and Worden, 2007;Pakrashi et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Effects of vehicle speed in structural health monitoring from operational conditions of bridges

Jaksic¹,

O’Connor²,

Pakrashi³

2014

Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures

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“…Lee et al [15] proposed a procedure consisting of identification of the operational modal properties and the assessment of damage locations and severities. Majumder and Manohar [16] presented a time domain formulation for damage detection of a beam using vibration response caused by a moving oscillator. Bilello and Bergman [17] studied damaged beams under a moving load.…”

Section: Introductionmentioning

confidence: 99%

Monitoring breathing cracks of a beam-like bridge subjected to moving vehicle using wavelet spectrum

Nguyen

2013

Vietnam J. Mech.

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Abstract. In this paper a wavelet spectrum technique for monitoring the breathing crack phenomenon of a beam-like bridge subjected to moving vehicle is presented. The stiffness of element with a breathing crack is modeled as a time dependent stiffness matrix using the finite element method. The stiffness matrix of the structure at each moment depends on the curvature of the structure at the crack position. The breathing crack phenomenon can be detected by analysing the instantaneous frequency (IF) of the system using the wavelet spectrum. When the crack depth is large, the crack area might be determined by the significant peak in the IF. The simulation results show that when the crack "breaths" the amplitude of the vibration obtained from the vehicle is smaller than in the case of an open crack. This is a warning when using the amplitude of the dynamic response to estimate the crack depth when there is a breathing crack in the structure. Therefore, it is important to distinguish the open crack and breathing crack to obtain a more accurate estimation of the crack depth. The results showed that crack with a depth as small as 10% of the beam height can be detected by the method. The proposed method can be applied with a noise level up to 10%.

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A time-domain approach for damage detection in beam structures using vibration data with a moving oscillator as an excitation source

Cited by 104 publications

References 12 publications

A two-step approach for damage detection in beam based on influence line and bird mating optimizer

A two-step approach for damage detection in beam based on influence line and bird mating optimizer

Effects of vehicle speed in structural health monitoring from operational conditions of bridges

Monitoring breathing cracks of a beam-like bridge subjected to moving vehicle using wavelet spectrum

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