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Computer aided simulation analysis for wear investigation of railway wheel running surface

Šťastniak Pavol, Smetanka Lukáš, Drozdziel Pawel

Diagnostyka

2019

Vol. 20, No. 3

63--68

In railway applications wear prediction in the wheel-rail interface is a fundamental matter in order to study problems such as wheel lifespan and the evolution of vehicle dynamic characteristic with time. The change of the running surface of the railway wheels head has not only a great influence on the dynamic properties of the vehicle, but also a significant economical, safety and ecological impact in the process of the rail transport. One of the ways to predict these undesired situations are computer aided simulation analyzes. In this paper are presented results of wheel profile wear by Archard wear law, when the computational model of railway vehicle was driving in track by constant velocity. The vehicle was traveling along track where the rail profile was defined by standard (UIC 60 profile) with cant of 1:40, or the track profile really measured on the track, the profile S 91700_16 with the cant of 1:20. Simulations were realized by SIMPACK software.

Research on the radial wheel wear in the cylindrical traverse grinding process.

Porzycki J.

Advances in Manufacturing Science and Technology

2003

Vol. 27, nr 1

55-69

Cylindrical traverse grinding is the process widely spread, being at the same time less researched than plunge grinding. The profile of the wheel wear in traverse grinding is a series of steps together with the quantity of feeds per revolution of the workpiece. Based on the theoretical analysis and empirical research this research paper presents the possibility of calculating the wheel wear at its individual steps.

Szlifowanie osiowe zewnętrznych powierzchni walcowych jest procesem szeroko rozpowszechnionym, a jednocześnie znacznie mniej rozpoznanym niż szlifowanie promieniowe. Profil zużycia ściernicy w procesie szlifowania osiowego ma postać szeregu stopni o wielkości posuwu na obrót przedmiotu. Na podstawie analizy teoretycznej i badań doświadczalnych w pracy przedstawiono możliwość obliczania wielkości zużycia na poszczególnych stopniach.