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Abstract: Based
on the analysis of one–point contact of wheel and rail, the
computational model for two-point contact resulting from cone-tread
wheel flange close to rail is established. The problems between wheel
and rail are analyzed by using the finite element parametric quadratic
programming. The results of the changing laws of wheel/rail contact
states and force, which are obtained from computation of two-point
contact problems between wheel and rail carried out under various loads,
would be helpful for finding methods for reducing wear of the wheel
flange and side rail.
Key
words: Two-point
contact Finite element method Parametric quadratic
programming Wheel/rail contact force
CLC No: U260.11
U211.5
国家自然科学基金资助项目(10072014).
Received 20040813, received in revised form 20050523
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