摘要
摘要：利用JD-1轮轨模拟试验机研究新与旧模拟轮、新与生锈模拟轮和冲角等参数对轮轨黏着系数的影响。结果表明：干态和有水工况下，随着冲角的增加，轮轨纵向黏着系数均有所下降，而横向黏着系数均呈现上升趋势。对比干态和有水工况，发现有水下工况纵向黏着系数下降较多，下降了50％～60％，但横向黏着系数下降不明显。新模拟轮与模拟轨转动产生的黏着系数要小于旧的模拟轮与模拟轨转动产生的黏着系数；新模拟轮与模拟轨转动产生的黏着系数与生锈的模拟轮与模拟轨转动产生的黏着系数相差无几。
The effect of new and old simulating wheels, unrusted and rusted simulating wheels and the incidence angle on the wheel/rail adhesive coefficient is studied with JD-1 wheel/rail simulating facilities. The results indicate that under both wet and dry conditions the longitudinal adhesive coefficient decreases by 50%-60% with the increase of the incidence angle, while the lateral adhesive coefficient increases. By comparison of the dry condition to the wet condition, it is found that under the wet condition the longitudinal adhesive coefficient decreases a lot, but the lateral adhesive coefficient decreases slightly. The adhesive coefficient obtained on a new simulating wheel is smaller than that obtained on an old simulating wheel. Meanwhile, there is a little difference between the adhesive coefficient obtained on a new simulating wheel and that obtained on a rusted simulating wheel.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2011年第5期26-30,共5页
Journal of the China Railway Society
基金
国家自然科学基金资助项目(50905148)
国家重点实验室自主研究课题(2008TPL_Z09)
国家重点基础研究发展计划(973计划)项目(2007CB714700)
关键词
模拟轮
生锈
冲角
黏着系数
simulating wheel
rusted
incidence angle
adhesive coefficient
