Analysis of the distribution of temperature fields in the braked railway wheel

Suchánek, Andrej; Harušinec, Jozef; Loulová, Mária; Strážovec, Peter

doi:10.1051/matecconf/201815702048

Cited by 14 publications

(10 citation statements)

References 16 publications

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“…Consequently, numerous requirements must be met, namely those related to fire protection, acoustic and thermal insulation [3,5], electronic devices, reliability, availability, maintainability, safety, protection against current and various environmental conditions and loads caused by vibrations, which rise when riding on a track at various speeds [12,33]. Great emphasis is put on noise protection, as this well-known negative phenomenon is a consequence of every braking process [6,7,24,28].…”

Section: Fig 2 Vehicle Coordinate Systemmentioning

confidence: 99%

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Design of a Metro Door System and Determination of Main Loads

et al. 2019

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This article discussed the determination of a metro vehicle's door forces acting on its coarse structure. With previous articles addressing this issue, a definition of a specific reference vehicle was provided together with the collection of the normative requirements for metro vehicles. These form a basis for addressing the issue. The main objective hereof was to design a technical solution of a door system for the reference vehicle and create a parametric model of the door's forces acting on the vehicle's rough structure. This model would serve to approximate and operatively quantify these force effects of the door to the vehicle's structure by modifying the various input parameters. Therefore, it was necessary to create a mathematical model of the equilibrium conditions of the proposed door system and to quantify them using a developed software. Subsequently, these results served as inputs for the FEM analysis of the load-bearing components between the door and the vehicle's structure.

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Section: Fig 2 Vehicle Coordinate Systemmentioning

confidence: 99%

“…(27) The equilibrium conditions for the upper body in Fig. 17 are (28) and 29: The equilibrium conditions for the lower body in Fig. 17 are (30) and (31):…”

Section: Tab 4 Considered Accelerationsmentioning

confidence: 99%

Design of a Metro Door System and Determination of Main Loads

et al. 2019

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“…Sometimes the torsional flexibility about a longitudinal axis, is considered representing an improved negotiation of twisted tracks. The bogie flexibility can be determined through finite element analysis [26] and may be represented in the freight wagon multibody simulation by a limited set of eigenmodes of free frame body. Such analysis can also give the mass and inertia moments of the bogie frame [27,28].…”

Section: Wagon Bogiementioning

confidence: 99%

Process of modelling the freight wagon multibody system and analysing its dynamic properties by means of simulation computations

2018

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Computational modelling and simulations are nowadays widely used for design of railway vehicles, analysing and assessment of their dynamic properties and also for detection and prediction of the mechanism of deterioration and sources of damages. Therefore it is necessary to develop the adequate virtual model of an analysed railway vehicle as well as a track. For these purposes many simulations software packages are developed. In these computational programs a railway vehicle is modelled as a mechanical system usually consists of many bodies called a multibody system. In this paper the process of computational modelling of a freight wagon multibody system is outlined. Moreover, there are presented also results of dynamic simulation of a freight wagon running on a real track section. The analysed intermodal freight wagon was equipped with Y25 bogie. The freight wagon model, simulation analyses and ride properties evaluation were performed by means of a commercial simulation program.

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“…Except for these types of wheel defects we know also the wheel-flat defect. This type of railway wheel profile damage is formed by a locked wheel sliding on a rail during braking [5], while a part of the wheel becomes flattened. This defects causes high impact loads, which may results on one hand in cracking and noise and on the other hand in discomfort.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Influence of a Rail Vehicle Running with Wheel-flat on the Railway Track

Dižo

Blatnický

Steišūnas

et al. 2018

LOGI - Scientific Journal on Transport and Logistics

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The railway transport network is currently in a quite big expansion. Therefore, railway tracks are modernized and the attention is given also on the technical state of rail vehicles, which operate on them. However, it may happen that the wheel surface is damaged. One of the most common reasons of wheel damage is too much braking, which results to the wheel-flat formation. This article is focused on the evaluation of the influence of a rail vehicle running on the railway track, which a wheel is damaged by the wheel-flat. Investigation of these negative effects was performed by means of simulation computations. As evaluating parameters, values of the wheel force in the contact of the rail and wheel with a flat where observed.

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Analysis of the distribution of temperature fields in the braked railway wheel

Cited by 14 publications

References 16 publications

Design of a Metro Door System and Determination of Main Loads

Design of a Metro Door System and Determination of Main Loads

Process of modelling the freight wagon multibody system and analysing its dynamic properties by means of simulation computations

Evaluation of the Influence of a Rail Vehicle Running with Wheel-flat on the Railway Track

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