Influence of roughness and wear on pressure distribution and stress state at wheel - rail contact
نویسندگان
چکیده
منابع مشابه
Analysis of wheel and rail Hertzian and Non-Hertzian contact theories using UM software considering the effect of rail inclination on wheel wear
Wheel-rail interaction has always been one of the issues in the railway industry. In this paper, the effect of Hertzian and non-Hertzian contact theories on the wheel wear due to the rail inclination was investigated. by using the UM software. According to the results, longer contact areas are obtained in non- Hertzian contact theory compared to Hertzian contact theory. In non-Hertzian contact...
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Investigation of vertical vibrations of a railway turnout is important in designing track components under moving loads of trains. In this paper, the turnout is simulated by a linear finite element model with modal damping. A section of the turnout has a length of 36 sleeper spans surrounding the crossing. Rails and sleepers are modeled with uniform Rayleigh-
Timoshenko beam elements. The ra...
متن کاملImpacts of Wheel–rail at Railway Turnouts
Investigation of vertical vibrations of a railway turnout is important in designing track components under moving loads of trains. In this paper, the turnout is simulated by a linear finite element model with modal damping. A section of the turnout has a length of 36 sleeper spans surrounding the crossing. Rails and sleepers are modeled with uniform Rayleigh- Timoshenko beam elements. The rail...
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Wheel/rail contact simulation is one of the most complicated problems in the modeling of railway vehicles. The wheel/rail interaction plays a unique role in rail vehicle dynamics. In this paper, the dynamic response of the wheel on irregular rail track is analyzed with analytical approach using the method of Multiple Scales (MMS). The Hertzian contact theory is used to obtain the relationshi...
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ژورنال
عنوان ژورنال: IOP Conference Series: Materials Science and Engineering
سال: 2018
ISSN: 1757-899X
DOI: 10.1088/1757-899x/444/2/022003