Calculated estimation of railway wheels equivalent conicity influence on critical speed of railway passenger car
Juraj Gerlici,Rostyslav Domin,Ganna Cherniak,Tomáš Lack +3 more
- Vol. 157, Iss: 157, pp 03006
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The article presents the results of determining the equivalent conicity characterizing the geometric interaction of wheels and rails on 1520 mm track gauge, and the necessity of considering the limit values of equivalent Conicity in tests of high speed rolling stock is emphasized.Abstract:
The article presents the results of determining the equivalent conicity characterizing the geometric interaction of wheels and rails on 1520 mm track gauge. The cases of interactions of rails and wheelsets, wheels of which have different profiles, are considered. The computer model of the motion speeds of the passenger car is developed. According to the results of computer simulation, critical speeds for the bogie moving through the tracks of intended gauge are received. Based on the results of the simulation anslysis, the significant dependence of the value of the equivalent conicity on the critical speed is confirmed. The necessity of considering the limit values of equivalent conicity in tests of high speed rolling stock is emphasized. This work is supported by: KEGAread more
Citations
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Research of possibilities of reducing the driving resistance of a railway vehicle by means of the wheel construction improvement
TL;DR: Results of research of the driving resistance reducing of a railway vehicle by the modification of a railways wheel construction are presented and proposed construction solutions meet requirements for the safety factor.
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Fuzzy Logic-Based Identification of Railway Wheelset Conicity Using Multiple Model Approach
TL;DR: A multiple model-based novel technique for the detection of railway wheelset conicity, based on an indirect method to identify the actual conicity condition by analyzing the lateral acceleration of the wheelset, validated by simulation studies to endorse its efficacy.
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The Improved Hatch Cover Construction for Universal Open Box-type Wagon from the Strength and Durability Point of View
Oleksij Fomin,Juraj Gerlici,Alyona Lovska,Mykola Gorbunov,Kateryna Kravchenko,Pavlo Prokopenko,Vladimír Hauser +6 more
TL;DR: In this article, the dynamic load of the improved hatch cover construction for universal open-box type wagon is researched, taking in to account the worse loading scheme - impact of 150 kg cargo from height of 3000 mm.
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The dependence of the brake disc aerodynamic drag on the rolling stock motion speed
TL;DR: In this article, the authors analyzed the effect of brake disc braking on the rotational and linear speed of high-speed trains, as well as the aerodynamic moment of resistance which arises when braking with a disc brake.
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Determining the Equivalent Conicity for Railway Wheelset Maintenance with Deep Ensembles
Alexandre Trilla,Xavier Cabré +1 more
TL;DR: An evaluation of the Equivalent Conicity algorithm for two trains of the British Rail Class 390 fleet develops a data-driven approach based on a deep ensemble of features with neural networks and proves that this method meets the requirements of the maintenance staff and yields a new avenue for business improvement through the application of the condition maintenance approach for wheelsets.
References
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BookDOI
Handbook of railway vehicle dynamics
TL;DR: Iwnicki et al. as discussed by the authors presented a detailed overview of the history of railway vehicle and track simulation, including the development of the Bogie interaction between vehicles and track.
Journal ArticleDOI
Testing and Analysis Techniques for Safety Assessment of Rail Vehicles: The State-of-the-Art
John A. Elkins,A. Carter +1 more
TL;DR: The methods currently being used in North America, Britain and Europe for the safety assessment of rail vehicles are discussed in this article, and conclusions are drawn and some recommendations are made for the future direction of safety assessment methods.
Book ChapterDOI
Design and Application of Multi-software Platform for Solving of Mechanical Multi-body System Problems
TL;DR: The goal is to present the maping process of the working space of the chosen manipulating equipment and aplication of the optimising approach to find its geometry parameters.
Journal ArticleDOI
Stabilization of high-speed railway vehicles.
TL;DR: In this article, the problems of critical speeds of railway vehicles with dry friction units determination are discussed and a new approach is used which extends the field of application of dynamic response linear analysis methods to vital nonlinear multibody systems.
Procedural issues acceptance of rolling stock gauge 1435/1520 mm
Y. V. Diomin,R. Y. Diomin +1 more
TL;DR: In this article, the results of comparative analysis of the systems for estimation of dynamic qualities of rolling stock of 1520 mm and 1435 mm gauges are presented, necessary for confirmation of exploitation possibility of rail vehicles for international transportations on the railways of different standards.