Abstract
The present paper includes the first part of an investigation of the complex braking process during the braking of railway vehicles, using transient thermal FE models with temperature dependent material properties. In the development of the geometric model, efforts were made to take the test equipment into consideration to as great an extent as possible, enabling the investigation through time of the thermal behaviour of the entire apparatus. Bearing houses were modelled in a simplified manner and contact heat resistances were applied for bearings. Numerical calculations were validated by measurement data. The correspondence of the results applying the two methods was acceptable.
Highlights
In addition to a precise description of friction conditions, it is essential to explore the contact and thermal conditions of the brake block and the wheel rim in friction for the design and dimensioning of railway brake blocks
The present paper includes the first part of an investigation of the complex braking process during the braking of railway vehicles, using transient thermal FE models with temperature dependent material properties
The complex phenomenon of braking was investigated through the analysis of a brake block test equipment operated at the Department of Railway Vehicles of Budapest University of Technology and Economics (BME)
Summary
In addition to a precise description of friction conditions, it is essential to explore the (elastic and plastic) contact and thermal conditions of the brake block and the wheel rim in friction for the design and dimensioning of railway brake blocks. Keywords FEM · railway brake block test equipment · heat generation by friction · thermal contact resistance
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