Labyrinth structure sealing performance on grounding device of railway passenger vehicles

The most important element in railway passenger transport is a customer – traveller, who requires the transport from one place to another. A basic precondition for accomplishing the main requirement – transport, is making the complete offer which provides not only transport, but also other associated services. Practically, there are many associated criteria of transport, for example safety, duration, price, reliability, comfort and complementary services. Passenger transport is generally considered as an activity, which arises as the consequence of spatial division of places, where people are in exact time and their need to move. Motivators for moving could be commuting – job or education, dealing with personal or working matters, travelling for vacation – hiking, sport, health, cultural and social facilities, visiting relatives and friends. Requirements for transport of passengers originate in the need to move, while the passenger transport is dependent on the willingness of travelling. In passenger transport, there are mostly individual passengers, so it is difficult to determine all transport requirements. The paper is focused on one of the key factors of passenger transportation - connectivity of trains. Connectivity of passenger trains and other means of transport can be distinguished also from temporal and spatial point of view. Temporal connectivity is such sequence of arrivals and departures of different passenger trains and other means of transport, which allows changing the different passenger vehicles easily in regard to necessary time. Spatial connectivity means the distance between two passenger vehicles, among which the passenger is moving. In the paper, there is described the general methodology for calculation of minimum transfer time in the railway station. Railway passenger station is some kind of transport hub – a starting and finishing point for flows of passengers. Passengers have the opportunity to change the train type from long-haul train to regional train or contrariwise or simply enter or leave the system of railway transport. In the methodology, all necessary aspects are taken into account.

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On the optimal design of railway passenger vehicles

Proceedings of the Institution of Mechanical Engineers Part F Journal of Rail and Rapid Transit ◽

10.1243/0954409011531440 ◽

2001 ◽

Vol 215 (2) ◽

pp. 111-124 ◽

Cited By ~ 7

Author(s):

G. R. M. Mastinu ◽

M Gobbi

Keyword(s):

Optimal Design ◽

Life Cycle Cost ◽

Ride Comfort ◽

Concept Design ◽

Vehicle Performance ◽

Passenger Vehicles ◽

Performance Indexes ◽

Maximum Payload ◽

Railway Passenger ◽

The Many

A method is presented for the concept design of railway passenger vehicles. The method requires adequate mathematical modelling for describing quantitatively the many relationships between vehicle parameters and vehicle performance indexes. The main purpose of the method is defining the layout of vehicles (i.e. length, number of wheelsets, etc.) in order to obtain the lowest possible life cycle cost (LCC). The method is based on multiobjective programming (MOP), a branch of operations research. By the proposed method, the optimal design of railway passenger vehicles can be performed in a theoretically correct and rigorous way. Genetic algorithms (GAs) are used to find the numerical solution to the problem. The optimal design of urban, suburban and intercity (IC) passenger vehicles is performed in order to obtain the best compromise between conflicting requirements such as maximum payload, minimum tare weight and axle load, minimum track deterioration, maximum ride comfort, etc. It is shown that, with respect to modern vehicles, a major improvement in LCC would be gained if shorter vehicles and newly designed wheelsets and/or bogies could be adopted. Should this happen, new families of passenger vehicles with two or three axles would be the optimal solutions to be built.

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THE MODELLING OF RAILWAY PASSENGER VEHICLES

Vehicle System Dynamics ◽

10.1080/00423119208969394 ◽

1992 ◽

Vol 20 (sup1) ◽

pp. 144-156

Author(s):

J. R. Evans

Keyword(s):

Passenger Vehicles ◽

Railway Passenger

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Influences of car body vertical flexibility on ride quality of passenger railway vehicles

Proceedings of the Institution of Mechanical Engineers Part F Journal of Rail and Rapid Transit ◽

10.1243/09544097jrrt272 ◽

2009 ◽

Vol 223 (5) ◽

pp. 461-471 ◽

Cited By ~ 58

Author(s):

J Zhou ◽

R Goodall ◽

L Ren ◽

H Zhang

Keyword(s):

Flexural Vibration ◽

Ride Quality ◽

Resonant Vibration ◽

Structural Damping ◽

Natural Vibrations ◽

Vertical Stiffness ◽

Passenger Vehicles ◽

Railway Passenger ◽

Geometric Filtering

To study the influences of carbody vertical stiffness on vehicle ride quality, a vertical model of railway passenger vehicles, which includes the carbody flexible effects and all vertical rigid modes, is built. With the model and the covariance method, the requirements for the carbody bending frequency are researched. The results show that when the stiffness of a carbody decreases to certain frequencies there are significant vibrations in the carbody, although structural damping provided by a fully equipped carbody will help attenuate the vibration to some extent. A simple way to avoid resonant vibration is to increase the bending frequencies of a carbody: the higher the vehicle running speed, the higher carbody stiffness could be required. However, there are practical limitations to such an increase and the method used in this study can readily obtain the lowest bending frequency required by vehicle ride quality. Finally, the geometric filtering phenomenon and its influences on the carbody resonant flexural vibration are analysed. Results show that it is this phenomenon rather than the natural vibrations of bogie bounce that most strongly influences the resonant flexural vibration of a railway carbody.

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Acoustic Aspects of Railway Vehicle Design

Proceedings of the Institution of Mechanical Engineers ◽

10.1243/pime_proc_1976_190_054_02 ◽

1976 ◽

Vol 190 (1) ◽

pp. 515-525 ◽

Cited By ~ 2

Author(s):

P. W. Eade ◽

C. G. Stanworth

Keyword(s):

Internal Noise ◽

Analytical Techniques ◽

Railway Vehicle ◽

Vehicle Design ◽

Acoustic Environment ◽

Passenger Vehicles ◽

Railway Passenger

SYNOPSIS The paper describes the present acoustic environment in railway passenger vehicles, and discusses the various mechanisms leading to this. The factors providing a basis for an internal noise criterion are stated, and suitable criteria for different classes of stock suggested. A more detailed discussion is presented of various problems encountered during investigation, and of the experiments and analytical techniques evolved during their solution. It is pointed out where the experience gained in this work can be applied, and also where gaps still remain to be filled by future investigation.

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Optimal Design of the Layout of Railway Passenger Vehicles

Optimal Design of Complex Mechanical Systems ◽

10.1007/978-3-540-34355-4_11 ◽

2007 ◽

pp. 285-302

Author(s):

Giampiero Mastinu ◽

Massimiliano Gobbi ◽

Carlo Miano

Keyword(s):

Optimal Design ◽

Passenger Vehicles ◽

Railway Passenger

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Methodology of Calculation of the Ticket Markers for Rail Passenger Vehicles

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.803.54 ◽

2015 ◽

Vol 803 ◽

pp. 54-62

Author(s):

Jan Ponicky ◽

Vladislav Zitricky

Keyword(s):

Transport System ◽

Service System ◽

Travel Speed ◽

Passenger Transport ◽

Passenger Vehicles ◽

Transport Distance ◽

Self Service ◽

Railway Passenger ◽

Set Up ◽

Distance Travel

The task of integrated transport system in passenger transport is connection between their other modes. One part of implementation of integrated transport system is set up the ticketing system for validation. This problem can solving by the ticket machines and their location. When ticket machines are located in vehicle, we create conditions for Self-Service System in public transport. The paper is focused on the description of factors, which influences number of ticket markers in railway passenger vehicles. For example these factors is circulation time of vehicles, transport distance, travel speed and etc. One part of paper includes the methodology of calculation the ticket markers for rail passenger vehicles.

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