|Table of Contents|

Effect of system parameters on tread-hollow wear of high-speed train wheels(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2016年03期
Page:
55-62
Research Field:
载运工具运用工程
Publishing date:

Info

Title:
Effect of system parameters on tread-hollow wear of high-speed train wheels
Author(s):
HUANG Cai-hong1;  LUO Ren1;  ZENG Jing1;  SONG Chun-yuan 1; 2
1. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, Sichuan, China; 2. CRRC Changchun Railway Vehicles Co., Ltd., Changchun 130062, Jilin, China
Keywords:
high-speed train;  wheel;  tread-hollow wear;  wear prediction;  dynamics model;  wheel-rail contact
PACS:
U211.5
DOI:
-
Abstract:
In order to investigate the reasons of tread-hollow wear of high-speed train wheel, a wear prediction model was set up by coupling a vehicle-track system dynamics model to a wear model. In the wheel-rail normal contact, the shape of contact patch and the distribution of normal force were calculated by using Herz’s contact theory. In the wheel-rail tangential contact, the tangential force was calculated by using Kalker’s simplified theory. The wear loss was calculated by using Achard’s wear model. To revise the wear prediction model, the wheel tread wear shape of CRH3 high-speed train running on Wuhan-Guangzhou Line was simulated, and compared with the wear shape collected from field test. In order to get the wear law close to field test result, the uncertainty of wear coefficient was considered, and the initial wear coefficient should be divided by 10 in wear prediction. Based on the modified theory model, the effects of rail profile, wheel profile, vehicle speed, track irregularity, line condition, the structure and suspension parameters of bogie on the tread wear law of high-speed train wheel were studied. Analysis result indicates that wheel and rail profiles affect the location, depth, and the width of wheel tread wear, vehicle speed affects the depth of wheel tread wear, track irregularity affects the depth and width of wheel tread wear, and line curve radius affects the depth and width of wheel tread wear. Too high vehicle speed, unreasonable wheel-rail matching relation, and too high track straightness will cause a centered wheel wear, and lead to tread-hollow wear. The suspension and structure parameters of bogie have little impact on tread-hollow wear. 1 tab, 17 figs, 23 refs.

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Last Update: 2016-06-30