On the temperature in the wheel-rail rolling contact

被引：30

作者：

Fischer, FD

Daves, W

Werner, EA

机构：

[1] Univ Leoben, Inst Mech, A-8700 Leoben, Austria

[2] Austrian Acad Sci, Erich Schmid Inst Mat Sci, A-8700 Leoben, Austria

[3] Werkstoff Kompetenzzentrum Leoben Forsch Gesell m, MCL Mat Ctr Leoben, A-8700 Leoben, Austria

[4] Univ Leoben, Christian Doppler Lab Funkt Orientiertes Werkstof, A-8700 Leoben, Austria

[5] Tech Univ Munich, Christian Doppler Lab Moderne Mehrphasenstahle, Lehrstuhl Werkstoffkunde & Werkstoffmech, D-85748 Garching, Germany

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 2003年 / 26卷 / 10期

关键词：

flash temperature; frictional heating; plastic heating; rolling contact;

D O I：

10.1046/j.1460-2695.2003.00700.x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The flash temperature in an asperity of the rail due the wheel rail rolling contact is investigated. First the contact configuration and the total heat produced are explained. Then approaches to heat partitioning between the two contacting bodies are discussed. A new heat partitioning factor is derived for the case of frictional heating and heating due to plastic deformation, thereby taking into account the roughness of the contacting surfaces by a contact intensity factor distribution as well as the local pressure intensification by individual asperities. Several roughness distributions are studied. Finally, an explicit calculation is outlined of the asperity flash temperature at the end of the contact, expressed by two temperatures and two factors contributing to the partitioning of heat between the contacting bodies.

引用

页码：999 / U1

页数：9

共 42 条

[1] Analytical 1D model for analysis of the thermally affected zone formed during railway wheel skid [J].