|Table of Contents|

Bogie rotation resistance torque characteristics of passenger car(PDF)

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

Issue:
2013年04期
Page:
45-50
Research Field:
载运工具运用工程
Publishing date:

Info

Title:
Bogie rotation resistance torque characteristics of passenger car
Author(s):
SHI Huai-long;  WU Ping-bo;  LUO Ren
State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, Sichuan, China
Keywords:
railway vehicle;  bogie;  rotation resistance torque;  rotation resistance factor;  rotation velocity;  rotation angle
PACS:
U270.331
DOI:
-
Abstract:
The mathematical model of railway passenger car was established to analyze the rotation motion between bogie and carbody. The bogie rotation resistance factor formula was built for the vehicle with air springs bogies. Laboratory test was used to measure the resistance factor to verify mathematical model and calculation results. The distribution rule of bogie rotation resistance factor was summarized for motor and trailer car under different loading conditions. The influence of air spring state on the resistance factor was analyzed. Analysis result shows that the theory calculation result is slightly smaller than the test result for air springs in inflated and over-inflated states, and the maximum error is 0.02, which is resulted from that the dynamic stiffness change of air spring at different rotation velocities and other suspension components' influence in theory calculation are ignored. The greater the rotation angle and the rotation velocity are, the greater the rotation resistance factor becomes. The resistance factor at 1.0(°)·s-1 is much greater than that at 0.2(°)·s-1, and the extreme error is 0.047. In the deflated state of air spring, the test result is bigger than the calculation result, and the difference increases with the rotation velocity. The air spring in over-inflated state has little effect on the rotation resistance factor. In the deflated state of air spring, for trailer car of tare load, the rotation resistance factor reaches its most dangerous value 0.093. 7 tabs, 6 figs, 14 refs.

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Last Update: 2013-08-30