|Table of Contents|

Wheel-rail contact features of self-steering radial bogie locomotive(PDF)

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

Issue:
2013年05期
Page:
47-53
Research Field:
载运工具运用工程
Publishing date:

Info

Title:
Wheel-rail contact features of self-steering radial bogie locomotive
Author(s):
BI Xin;  MA Wei-hua;  WANG Shao-lin;  LUO Shi-hui
State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, Sichuan, China
Keywords:
locomotive engineeing;  radial bogie;  dynamics analysis;  curve negotiation;  wheel-rail contact;  creep force;  flange contact
PACS:
U260.11
DOI:
-
Abstract:
The working principle of radial steering structure for three axle locomotive was studied. Wheel-rail contact features of locomotives with radial bogie and conventional bogie during passing transition curve were analyzed in detail by using the numerical simulation method. It is concluded that radial structure can balance the steering torques between wheelsets and improve locomotive primary suspension force to promote the bogie frame moving along the radial direction. The guide wheelset of conventional bogie is more susceptible to flange contact, which leads to a greater angle of attack. The guide wheelset in the radial bogie can maintain a smaller angle of attack on a large radius curve. When the flange contact occurs on the guide wheelset, the steering ability of radial bogie is weakened. The creep force distributions are almost same for the two types of bogies, i.e. the lateral creep force is greater than the longitudinal creep force for the guide wheelset, but the longitudinal creep force is greater than the lateral creep force for the third wheelset. The change of lateral creep force shows strongly nonlinear characteristic that smaller angle can cause larger lateral creep force. 13 figs, 14 refs.

References:

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Last Update: 2013-10-30