Analysis of Freight Wagon Wheel Failure Detection in Lithuanian Railways

Lunys, Olegas; Dailydka, Stasys; Steišūnas, Stasys; Бурейка, Гинтаутас

doi:10.1016/j.proeng.2016.01.040

Cited by 13 publications

(11 citation statements)

References 4 publications

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“…Phases of development and optimization of railway vehicles use different ways of analysing the dynamic and ride properties of a railway vehicle. Computational simulations of a railway vehicle running deal with dynamic of railway vehicle multibody system (its reaction on a track excitation) [1][2][3][4][5].…”

Section: Modelling the Freight Wagon Multibody Systemmentioning

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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Section: Modelling the Freight Wagon Multibody Systemmentioning

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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“…Since demands of the best ratio of the unloaded weight and the capacity weight of transport means are constantly required, engineers try to modify their design within their capabilities and maintaining its all positive operational properties and reliability [8][9][10]. Developers of rail vehicles have therefore come to the possibility to modify a frame of the original Y25 bogie by removing buffer beams [11,13].…”

Section: Description Of the Solved Freight Wagon Bogiementioning

confidence: 99%

Structural Analysis of a Modified Freight Wagon Bogie Frame

2017

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Abstract. This paper presents results of selected load cases for the modified freight wagon bogie frame. It comprises of two main parts. The first part is addressed to the introduction of a modified freight wagon bogie. There are described conditions for rail vehicles approval and mainly load cases which every bogie must meet for commissioning. The next part deals with computer modelling and analyses of a frame of this modified freight wagon bogie. It was analysed using the FE method and calculations were focused on the assessment of stresses of the frame structure under exceptional load. Calculation conditions were based on valid standards.

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“…At present, the commonly used in-service detection methods of wheel tread flats mainly include ultrasonic methods [ 3 , 8 , 9 ], the parallelogram method [ 10 , 11 ], and the impact load detection method [ 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ]. Ultrasonic methods are being intensely used for non-destructive evaluation, which can be divided into the electromagnetic ultrasonic method and the ultrasonic ranging method according to different measuring principles.…”

Section: Introductionmentioning

confidence: 99%

In-Service Detection and Quantification of Railway Wheel Flat by the Reflective Optical Position Sensor

Gao

Feng

et al. 2020

Sensors

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Railway wheel tread flat is one of the main faults of railway wheels, which brings great harm to the safety of vehicle operation. In order to detect wheel flats dynamically and quantitatively when trains are running at high speed, a new wheel flat detection system based on the self-developed reflective optical position sensor is demonstrated in this paper. In this system, two sensors were mounted along each rail to measure the wheel-rail impact force of the entire circumference by detecting the displacement of the collimated laser spot. In order to establish a quantitative relationship between the sensor signal and the wheel flat length, a vehicle-track coupling dynamics analysis model was developed using the finite element method and multi-body dynamics method. The effects of train speed, load, wheel flat lengths, as well as the impact positions on impact forces were simulated and evaluated, and the measured data can be normalized according to the simulation results. The system was assessed through simulation and laboratory investigation, and real field tests were conducted to certify its validity and correctness. The system can determine the position of the flat wheel and can realize the quantification of the detected wheel flat, which has extensive application prospects.

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Analysis of Freight Wagon Wheel Failure Detection in Lithuanian Railways

Cited by 13 publications

References 4 publications

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

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

Structural Analysis of a Modified Freight Wagon Bogie Frame

In-Service Detection and Quantification of Railway Wheel Flat by the Reflective Optical Position Sensor

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