1) friction temperature rise
摩擦温升
2) the friction heating-up 100h
100小时摩擦温升
3) friction hoist
摩擦提升
1.
Applying the theory used to study function image in higher mathematics,the equiponderant tail rope system was analyzed,the heavy tail rope system and the light tail rope system in the friction hoist,the dynamic and static non-slip assurance coefficient change law in the normal hoist.
应用高等数学研究函数图像的理论,分析摩擦提升等重尾绳系统、重尾绳系统和轻尾绳系统,正常提升动、静防滑安全系数变化规律,为摩擦提升系统防滑计算与校验提供理论依据,也可供现场运行维护参考。
2.
Based on the friction drive equation between the lining and wire rope,the characteristic of sliding process of friction hoist and the theory of heat conduction,a model of lining s transient temperature field was established and its analytic solution was obtained by an integral-transform method.
根据钢丝绳与衬垫间的摩擦传动方程以及摩擦提升滑动过程特性,基于热传导理论构建了衬垫瞬态温度场模型;应用积分变换法推导出衬垫温度场解析计算式。
4) high temperature friction
高温摩擦
1.
The results show that the high temperature friction coefficient of the steel/steel pairs appears the increasing trend with increasing test time,and the fast or slow of the increasing is a relation with the test parameters.
结果表明,在试验范围内热轧钢/热轧钢摩擦副的高温摩擦系数随时间的延长呈增长趋势,增长趋势的快慢与试验参数有关,高速时的高温摩擦系数明显低于低速时的高温摩擦系数;大量氧化铁磨屑的产生是造成热轧钢/热轧钢摩擦副高温摩擦系数上下波动的主要原因。
5) frictional temperature
摩擦温度
1.
Based on Galerkin variation principle,an elastic finite element analysis model of coupling friction heat for wheel/rail was put forward,and the relations between wheel/rail friction heat and rail expanded displacement in touched area,wheel/rail frictional temperature,contact strain and stress.
基于伽辽金变分原理,利用有限元方法,建立了轮轨摩擦耦合热弹性有限元分析模型,分析了轮轨摩擦热与钢轨接触区热膨胀位移、摩擦温度、应变和应力的关系。
6) friction temperature
摩擦温度
1.
To deal with the problem that thermal flow density varies with time on absolutely sliding lining surface, this paper proposes on approximate method of calculating friction temperature in multi rope friction winder lining according to the integrate method of solution to thermal conduction problem.
针对绝对滑动衬垫表面热流密度随时间变化的情况,依照求解热传导问题的积分法提出了计算多绳摩擦提升机衬垫摩擦温度的近似方法,并对其应用进行了分析和讨论。
补充资料:摩擦学:滚动摩擦
滚动摩擦
两相互接触的物体有相对滚动或有相对滚动趋势时的摩擦。滚动摩擦的机理不同於滑动摩擦﹐它主要来源於滚动体在接触区域產生弹-塑性变形﹐在以接触点(或线)为中心的接触区内接触压力分布不对称﹐致使支承面的反力N 发生偏心﹐并產生摩擦力F (见图 滚动摩擦示意图 )。用表示法向反力N 到接触点的距离﹐根据力的平衡条件可得
式中为滚动体半径﹔为滚动摩擦係数﹐它的量纲为长度﹐其值与接触面的材料﹑粗糙度﹑温度和湿度等因素有关。
两相互接触的物体有相对滚动或有相对滚动趋势时的摩擦。滚动摩擦的机理不同於滑动摩擦﹐它主要来源於滚动体在接触区域產生弹-塑性变形﹐在以接触点(或线)为中心的接触区内接触压力分布不对称﹐致使支承面的反力N 发生偏心﹐并產生摩擦力F (见图 滚动摩擦示意图 )。用表示法向反力N 到接触点的距离﹐根据力的平衡条件可得
式中为滚动体半径﹔为滚动摩擦係数﹐它的量纲为长度﹐其值与接触面的材料﹑粗糙度﹑温度和湿度等因素有关。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条