|Table of Contents|

Dynamics simulation models of coupler systems for freight locomotive(PDF)

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

Issue:
2012年03期
Page:
37-43
Research Field:
载运工具运用工程
Publishing date:

Info

Title:
Dynamics simulation models of coupler systems for freight locomotive
Author(s):
WU Qing1;  LUO Shi-hui1;  WEI Chong-feng2;  MA Wei-hua1
1. Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu 610031, Sichuan, China; 2. School of Mechanical Engineering, University of Birmingham, Birmingham B152TT, West Midlands, UK
Keywords:
railway vehicle;  freight locomotive;  coupler system;  simulation model;  dynamic characteristic
PACS:
U260.34
DOI:
-
Abstract:
The working principles of two types of coupler systems were analysed. Based on considering the friction pairs of coupler tails and real-time aligning shoulders, coupler system models were set up by using control system simulation method. Nonlinear draft gear with hysteresis characteristic was modelled by using table lookup method. DFC-E100 system and 13A/QKX-100 system were simulated in a train model consisting of two 8-axle locomotives and one simplified wagon. The theoretical calculation of carbody-stabilizing-coupler ability was performed. Calculation result indicates that the models can rationally reflect the dynamic behaviour of freight locomotive's coupler systems. The distinct angling behaviour of DFC-E100 system is only observed when buff forces are larger than a certain value, but the aligning shoulder of DFC-E100 system can effectively prevent coupler from excessive angling. The error of carbody-stabilizing-coupler ability between simulation value and field test value is 4.23%, and the error between theoretical calculation value and field test value is 10.65%. The friction pair of 13A/QKX100 system is key element in the control of coupler dynamic behaviour, and can prevent coupler from distinct angling under buff condition. 1 tab, 11 figs, 15 refs.

References:

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Last Update: 2012-06-30