45 1 2010 2 JOURNAL OF S OUT HW EST J I A OT ONG UN I V ERSI TY
Vol .45 No .1
Feb .2010 :2009208203
: (50875221); 973 (2007CB714702);
(2009BAG12A012B11)
: (1956-), , , , , ,E 2mail:xsjin@home .s wjtu .edu .cn
:025822724(2010)0120001211 DO I:10.3969/j .issn .025822724.2010.01.001
1
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(1. , 610031;2. ,
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St a te of Arts of Research on Ra il Gr i n d i n g
J IN X uesong 1
, DU X ing 2
, G UO Jun 2
, CU I D abin
2
(1.Tracti on Power State Key Laborat ory,South west J iaot ong University,Chengdu 610031,China;2.School of
M echanical Engineering,S outh west J iaot ong University,Chengdu 610031,China )
Abstract :A detailed intr oducti on t o the existing theories and techniques of rail grinding and their app licati on p ractices was p resented .The interacti ons bet w een rail grinding and rail r olling contact fatigue,rail wear,noise and rail lubricati on,as well as their models,were discussed .Based on the existing econom ic models f or rail grinding,a modified econom ic model was p r oposed,with the costs of dep reciati on of grinding equi pment incor porated .
Suggesti ons about researches in the future are
p resented:devel op ing a computer p r ogra m based on rail grinding p ractices t o op ti m ize rail grinding p r ofile,investigating an op ti m izati on model that integrates the indexes of vehicle 2track coup ling dyna m ics and grinding costs,op ti m izing rail grinding p r ocedures under different working conditi ons .Key words :rail grinding;contact fatigue;crack;wear;noise;econo m ic model
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