Evaluation of bogie centre bowl friction models in the context of safety against derailment simulation predictions

Opala, Michał

doi:10.1007/s00419-018-1351-4

Cited by 9 publications

(5 citation statements)

References 9 publications

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“…A multibody model of a freight wagon with 30 degrees of freedom was built, in which the relevant vehicle elements in the form of rigid bodies are connected by means of elastic and damping elements, including friction pairs with dry friction between bogies and the body. Parameters of friction pairs were adopted on the basis of calculations obtained from the FEM model, the LuGre model was used to describe dry friction in the vehicle suspension [17].…”

Section: Centre Bowl Materials and Modelingmentioning

confidence: 99%

“…To assess the nature of transverse forces acting in the vehicle's pivot zone, the dynamics of the freight wagon was simulated while riding on a straight track with imperfections at a speed in the range of 40-100 km/h. Simdel's proprietary program for multibody modelling of rail vehicles was used for the simulation [17]. The following irregularities of the track were presented in Table 4: According to the UIC518 card, the above values correspond to a very good quality of track geometry.…”

Section: Simulation Analysismentioning

confidence: 99%

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Evaluation of Stress and Fatigue of a Rail Vehicle Suspension Component

et al. 2021

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The article discusses the use of pivot bearing friction liners, made of selected materials, in railway freight wagons’ spherical centre bowls. Comparative studies on the effect of suspension dynamics on the equivalent stresses in the liner material were carried out using the finite element method and multibody simulation. The results show the magnitude and location of the highest stresses in the liner with varying input loads, friction coefficients and interacting materials. The analysis is a basis for a simulation method for predicting the fatigue life of the suspension friction liner placed in the centre bowl between the bogie frame and the vehicle body.

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Section: Centre Bowl Materials and Modelingmentioning

confidence: 99%

Section: Simulation Analysismentioning

confidence: 99%

Evaluation of Stress and Fatigue of a Rail Vehicle Suspension Component

et al. 2021

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“…The issues of rail vehicle dynamics and wheel-rail contact modelling are discussed in the works, e.g. [12][13][14][15][16][17][18]. Damages of vehicles' running gear elements and their effect on dynamic behaviour are analysed by [19][20][21][22].…”

Section: General Approachmentioning

confidence: 99%

Dynamic Properties and Wear Analysis of a Rail Vehicle with Wheels' Self-Lubricating Coatings

Melnik¹,

Chudzikiewicz²,

Koziak³

et al. 2021

Komunikácie

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The problem of wheel and rail wear in railway transport generates costs of reprofiling and availability of vehicles and infrastructure. One of the possibilities of wear minimizing is decreasing of the friction coefficient in wheel-rail contact by means of lubricants. Such a solution has drawbacks from which the most crucial are: decrease of tractive/braking forces and difficulties with the precise spreading of the lubricant. These disadvantages may be avoided by modern, innovative self-lubricating coatings, applied at the production stage on the wheel flanges. The aim of the study is to investigate the effect of self-lubricating coatings on a rail vehicle's dynamic behaviour, safety against derailment and predicted wheel wear. The numerical study was performed using the wagon multibody model with simulated self-lubricating coating on wheel flanges.

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“…Its development dates back to the sixties of the previous century. The objective of this work was to approach some specific features of this bogie and to calculate the basic indicators related to the running safety [4][5][6]. They must meet the given criteria for safety operation of freight wagons, as well as an entire train set [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Calculation of Basic Indicators of Running Safety on the Example of a Freight Wagon with the y25 Bogie

Dižo¹,

Blatnický²,

Molnár³

et al. 2022

Komunikácie

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ResumeFreight wagons are among the most widely used means of transporting goods by land. Such a number of wagons and transported material and amount of material need to meet requirements in terms of safety and reliability. A wagon bogie is a key element in the wagon running safety point of view. The Y25 bogie is a most used bogie for freight wagons in the region of the central and west Europe. As this bogie was developed several decades ago, it is interesting to evaluate its running properties according to current standards. The presented research brings results of calculation of chosen basic indicators in terms of running safety. The calculations of the freight wagon with the Y25 bogie was performed by means of a multibody model. Simulation computations were carried out for an empty and loaded wagon, which has been running in curves with various radii and at several running speeds.

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Evaluation of bogie centre bowl friction models in the context of safety against derailment simulation predictions

Cited by 9 publications

References 9 publications

Evaluation of Stress and Fatigue of a Rail Vehicle Suspension Component

Evaluation of Stress and Fatigue of a Rail Vehicle Suspension Component

Dynamic Properties and Wear Analysis of a Rail Vehicle with Wheels' Self-Lubricating Coatings

Calculation of Basic Indicators of Running Safety on the Example of a Freight Wagon with the y25 Bogie

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