Correlation of Short Pitch Rail Corrugation with Railway Wheel-Track Resonance at Low Frequencies of Excitation

Balekwa, Bingo; Kallon, Daramy Vandi Von

doi:10.3390/vibration3040031

Cited by 8 publications

(5 citation statements)

References 21 publications

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“…The results from Figure 12 clearly validate that the locomotive wheel experienced higher amplitude resonance peaks during lateral excitation than during radial excitation, in agreement with the findings from Balekwa and Kallon [9], when the wheelset of a D39 200 locomotive was excited using a hammer to investigate the vibrational resonance in the lateral, longitudinal and radial directions. Figures 17 and 21 give evidence for the viscoelastic damping layer to be a good damper to mitigate the resonance peaks of the wheel when properly mounted.…”

Section: Discussionsupporting

confidence: 86%

“…Additionally, excessive vibration on a rail wheel has long been acknowledged to be caused by rail wheel corrugation [3][4][5][6][7]. Balekwa and Kallon [8] investigated resonance frequencies via experimental and Finite Element Modal Analysis (FEMA) of the class D39 200 locomotive wheelset, correlating their results with corrugation frequencies around the track curves [9]. The locomotive class D39 200 is normally operated on the Belfast to Steelpoort railway line.…”

Section: Introductionmentioning

confidence: 99%

“…A case study of the locomotive class D39 200 wheel offered tangible results to support the methodology by validating it with experimental data. The resonance amplitude peaks observed in the wheels of this locomotive [8][9][10][11][12][13] were damped using this new viscoelastic passive damping design technique.…”

Section: Introductionmentioning

confidence: 99%

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Design and Modeling of Viscoelastic Layers for Locomotive Wheel Damping

et al. 2021

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Rail–wheel interaction is one of the most significant and studied aspects of rail vehicle dynamics. The vibrations caused by rail–wheel interaction can become critical when the radial, lateral and longitudinal loads of the vehicle, cargo and passengers are experienced while the vehicle is in motion along winding railroad paths. This mainly causes an excessive production of vibrations that may lead to discomfort for the passengers and shortening of the life span of the vehicle’s body parts. The use of harmonic response analysis (HRA) shows that the wheel experiences high vibrational amplitudes from both radial and lateral excitation. The present study describes a numerical and experimental design procedure that allows mitigation of the locomotive wheel resonance during radial and lateral excitations through viscoelastic layers. It is proven that these high frequencies can be reduced through the proper design of damping layer mechanisms. In particular, three parametric viscoelastic damping layer arrangements were analyzed (on the web of both wheel sides, under the rim of both wheel sides and on the web and under the rim of both wheel sides). The results demonstrate that the correct design and dimensions of these viscoelastic damping layers reduce the high-amplitude resonance peaks of the wheel successfully during both radial and lateral excitation.

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Section: Discussionsupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

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Design and Modeling of Viscoelastic Layers for Locomotive Wheel Damping

et al. 2021

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“…However, in the experiments to determine the modulus of elasticity of the track or its rigidity such a difference was not observed. This factor has a positive effect on the dynamics of the railway vehicle [12][13].…”

Section: Trigonometric Methods and Resultsmentioning

confidence: 99%

Method for determining area of parametric resonances of wheelset of railway vehicle

Nikolaev,

Musayev,

Zhauyt

et al. 2023

22nd International Scientific Conference Engineering for Rural Development Proceedings

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Resonance phenomena take place not only in the field of sound and electricity, but also in mechanics, optics, physics, it is known that resonance can be, for example, a cause of destruction of a bridge, tunnel under the action of periodic forces, train derailment due to intense vibrations of rolling stock. It is shown that in mechanical systems with one degree of freedom there can be only simple parametric resonance and the number is countable. The article proposes a method for determining areas of parametric resonances of a railway carriage wheel pair. On the basis of the trigonometric method main areas of parametric resonance of railway carriage wheel pair have been established. To study the vertical displacements of units and parts of the vehicle, the authors proposed a design scheme for a conditional uniaxial vehicle. The authors found that for a given range of parametric perturbation coefficient variation it is enough to consider only one harmonic, and secondly, the width of the resonance zone increases with growth of the parametric perturbation coefficient. The performed studies have established that the longitudinal uneven elasticity of the railway track creates sufficiently large transfer accelerations acting on the rolling stock units, and the maximum amplitude of the wheelset bouncing due to the longitudinal uneven elasticity of the track is in order of magnitude higher than the same indicator from the geometric unevenness on the rail tread surface. The results obtained in establishing the areas of parametric resonances of the wheelset of a railway vehicle will be useful in developing recommendations for normalizing the values of the uneven elasticity of the railway track.

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“…Nonetheless, the importance of damping introduced through the track structure is given that it has an influence on vibration decay rate along the rail track [16]. In the recent work a wavelength fixing mechanism for short pitch rail corrugation is established [17][18].…”

Section: Introductionmentioning

confidence: 99%

Train Wheels Eigenmodes on Effects of Vibration and Track Deterioration in the Belfast to Steelpoort Railway Line

Balekwa

Kallon

2021

MATEC Web Conf.

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In South Africa, one of the main lines situated in its Limpopo Province presents symptoms of excessive vehicle-track vibrations. A modal method is adopted to study the difference in dynamic response of corrugated rails resting on the Hytrel/6385 and High Density Polyethylene (HDPE) rail pads. The results for dynamic response of rails on these two types of rail pads are analysed in form of Frequency Response Functions (FRFs). Two positions are considered in obtaining these point FRFs; those are mid-span and on top of sleeper. Resonance modes of significance are excited in a frequency range of 0 – 500Hz on rails resting on both types of rail pads. In view of the entire vibration response window, the FRFs show a more damped vibration response by rail resting on the HDPE than that resting on the Hytrel/6358 rail pad. A Finite Element (FE) modal analysis method is used to investigate vibration mode shapes and corresponding frequencies of the wheelset used by the locomotive operating in the line. In the high frequency range of 350 – 500Hz, the gear-side wheel of a locomotive wheelset proves to be vibrating more erratically than the non-gear side wheel. Clearly pronounced mode shape excited at a frequency of 350Hz and higher are presented.

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Correlation of Short Pitch Rail Corrugation with Railway Wheel-Track Resonance at Low Frequencies of Excitation

Cited by 8 publications

References 21 publications

Design and Modeling of Viscoelastic Layers for Locomotive Wheel Damping

Design and Modeling of Viscoelastic Layers for Locomotive Wheel Damping

Method for determining area of parametric resonances of wheelset of railway vehicle

Train Wheels Eigenmodes on Effects of Vibration and Track Deterioration in the Belfast to Steelpoort Railway Line

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