Development of dynamic models of wagons on models 18-9810 and 18-9855 bogies taking into account wheel wear research

A. V. Saidova, A. M. Orlova

Abstract


Purpose. Wear parameters clarification in wear simulation is an actual goal because of absence of corresponding data for freight cars in condition of using them on Russian railways. Research is devoted to development of dynamic models of wagons on three-peace two-axle models 18-9810 and 18-9855 bogies with maximum axle-loads 23,5 ts and 25 ts, and to choice of factors, with varying which parameters in the model of wheel wear can be identified. Methodology. The problem is solved by method of mathematic simulation in «MEDYNA» software. Wear calculation is based on abrasive wear theory (Archard’s theory). Findings. Clarification of wheels’ wear model may be done with varying of friction coefficient between wheel and rail for different wheel profile areas (flange and tread), wear coefficient in Archard’s model for mild and heavy wear and transition between them. Originality. Dynamic models of universal gondola on models 18-9810 and 18-9855 bogies are developed. It is established, that rail treads irregularities size effect wheel wear insignificantly, when car is running on circle track of constant radius. Practical value. Developed dynamic models of wagons on models 18-9810 and 18-9855 bogies may be used in wear simulation, determination of car running characteristics, interaction of car and rail of different type, construction, condition and etc. Research results of some factors influence on freight car wheel wear may be interesting for people, who study this problem.


Keywords


bogie; wheel wear; wear modelling; wear model; friction factor; wear factor

References


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DOI: https://doi.org/10.15802/stp2013/9669

 

Cited-by:

1. Refining the parameters of Archard's wear model for calculating wear of wheels applied for 25 t per axle freight wagons on Russian railways
Alina Saidova, Anna Orlova
Vehicle System Dynamics  Vol: 52  Issue: sup1  First page: 3  Year: 2014  
doi: 10.1080/00423114.2013.874564



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