Detection of structural damage and estimation of reliability using a           multidimensional monitoring approach

Ortiz, Jdm; Betancur, German R.; Gómez, José L.; Castañeda, Leonel; Zajsc, G; Carvajal, Ricardo Enrique Gutiérrez

doi:10.1177/0954409717707122

Cited by 5 publications

(4 citation statements)

References 28 publications

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“…A special area in the field of vibration research is the transport system [1][2][3][4]. Drivers and passengers are exposed to various types of vibrations, which depending on the severity and frequency affect the comfort of the traveler and also indirectly on safety.…”

Section: Introductionmentioning

confidence: 99%

Analysis of vibration propagation in the human body

Burdzik¹

2018

J. meas. eng.

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The human vibration is a multidisciplinary subject involving many disciplines. A special area in the field of vibration research is the transport system. The paper presents the results of preliminary tests, the aim of which was to analyze the propagation of vibrations forced by the movement of the vehicle floor on persons sitting in a car. During research vibration were registered in measurement nodes, in which the composition always included the signal of oscillation of the enforcing plate and specific locations on the human body. This paper presents results of vibration recorded on the extinction plate and on the head of the passenger.

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Section: Introductionmentioning

confidence: 99%

Analysis of vibration propagation in the human body

Burdzik¹

2018

J. meas. eng.

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“…Wheel-rail contact is very important for safety of rail vehicle, thus it is scientific problem considered by many researchers [1,2,[6][7][8]17]. This paper presents research on rail vibration generated under the wheel-rail contact of driving rail vehicle.…”

Section: Introductionmentioning

confidence: 99%

Application of time-frequency method for research on influence of locomotive wheel slip on vibration

Burdzik¹,

Konieczny²,

Deuszkiewicz³

et al. 2018

J. vibroeng.

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Wheel-rail contact phenomena is problem considered in many scientific manuscripts. Mostly the research is focused on wear, friction and forces analysis. This paper presents research on rail vibration generated due to rail vehicle passage. The problem investigated was the influence of wheel slip phenomena on vibration of rail. The locomotive wheel slip can be caused due to braking, flat wheel or defect (wear) of rail surface. Therefore, results of presented investigations can be useful for many applications, including rail vehicle driving monitoring system, control system, especially due to braking distance or diagnostics of wheels of railway tracks. The research was taken place on experimental test track. For the complex analysis horizontal and vertical vibration were measured. The investigation requires regular train vehicle drive condition, where the wheels are rolling on the rail surface without wheel slip and second case for drive process including wheel rolling and wheel slip (friction rolling and sliding). The vibration signals are non-stationary thus its processing should be conducted simultaneously in the time and frequency domain, as time-frequency representation (TFR). For this purpose, Short Time Fourier Transform (STFT) and Continuous Wavelet Transform (CWT) can be employed.

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“…As this method is sensitive to input signals, a recursive algorithm based on the Pearson's correlation coefficient was developed to reduce symptom redundancy. The technique not only recommended performing a maintenance task 490 cycles before the system failed, but also accurately located the region of the failure [9]. Meanwhile, some researches about the railway vehicle are also meaningful.…”

Section: Introductionmentioning

confidence: 99%

Structural safety evaluation of a subway bolster based on numerical simulation and experimental test

Xie

Liu³

et al. 2018

J Braz. Soc. Mech. Sci. Eng.

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The structural safety of a subway bolster is studied by fatigue strength testing and numerical simulation. A novel approach is proposed to determine the loading scheme in the fatigue test. This method identifies the loads accurately and allows for efficient yet economical fatigue test. Full-scale fatigue test of the bolster is carried out up to 1 × 10 7 load cycles under normal atmospheric conditions. The finite element model is validated based on the stresses measured by strain gauges. The fatigue life of the bolster is evaluated by Goodman diagram and nondestructive test since it is modeled as a series system of weak points. The results demonstrate that this bolster satisfies the structural safety requirement and its fatigue life is more than 1 × 10 7 load cycles with 90% reliability.

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Detection of structural damage and estimation of reliability using a multidimensional monitoring approach

Cited by 5 publications

References 28 publications

Analysis of vibration propagation in the human body

Analysis of vibration propagation in the human body

Application of time-frequency method for research on influence of locomotive wheel slip on vibration

Structural safety evaluation of a subway bolster based on numerical simulation and experimental test

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