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首页> 外文会议>American Society of Mechanical Engineers(ASME)/Society of Tribologists and Lubrication Engineers(STLE) International Joint Tribology Conference 2004(IJTC 2004) vol.1 pt.A; 20041024-27; Long Beach,CA(US) >A NEW POINT OF VIEW ON ROLLING FRICTION COEFFICIENT
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A NEW POINT OF VIEW ON ROLLING FRICTION COEFFICIENT

机译：滚动摩擦系数的新观点

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摘要

The micro-slip developed in contact area points is involved in rolling friction. It occurs in some points whilst in others the surfaces move together. Contact area is divided into micro-slip zones, subjected to opposite shear stresses. These are computed in each point and their values yield the power lost by interface friction and related micro-slip torque. Theoretical results are checked by comparison with published data. The specific power loss, defined as the power lost by friction on a unity of contact area, does not depend on direction of shear and its integral over contact area yields the lost power due to micro-slip. The micro-slip component of rolling friction coefficient is calculated by dividing power losses by the product between normal load and relative angular velocity. Global rolling friction coefficient includes as well hysteresis losses. Experimental evidences confirm well the advanced model.
机译：在接触区域产生的微滑动与滚动摩擦有关。它在某些点发生，而在另一些点则表面一起移动。接触区域分为承受相反剪切应力的微滑动区域。这些都是在每个点计算的，它们的值会产生由于界面摩擦和相关的微滑力矩而损失的功率。通过与公开数据进行比较来检查理论结果。比功率损耗定义为单位接触面积上因摩擦而产生的功率损耗，它不取决于剪切方向，并且其在整个接触面积上的积分会由于微滑动而产生损耗功率。滚动摩擦系数的微滑动分量是通过将功率损耗除以法向载荷与相对角速度之间的乘积来计算的。全局滚动摩擦系数还包括磁滞损耗。实验证据很好地证实了该先进模型。

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