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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) >NEW INVESTIGATIONS OF FINITE LENGTH LINE CONTACT
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NEW INVESTIGATIONS OF FINITE LENGTH LINE CONTACT

机译：有限长线接触的新研究

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摘要

Important end effects occur in Hertz-like finite length line contacts. If the length of shorter contacting cylinder is bounded by flat surfaces, the pressure tends to infinity at both ends. Many design measures were advanced to reduce or attenuate these pressure riser effects. These imply modification of contact geometry and, in most cases, numerical investigations. Few experiments were performed to check the actual contact between modified surfaces. Applying a previous proposal, contact area between a modified steel roller and a sapphire window is measured by scanning the reflectivity of metallic surface. A typical "dog bone" shape for this area is found. Lateral extensions of contact area, measured experimentally for a roller with rounded edges, agree well with numerical results obtained by a new, refined numerical procedure.
机译：重要的最终影响发生在类似赫兹的有限长度线接触中。如果较短的接触圆柱体的长度受平面限制，则两端压力趋于无穷大。采取了许多设计措施来减少或减弱这些增压器的影响。这些意味着接触几何形状的修改，并且在大多数情况下，意味着数值研究。很少进行实验来检查改性表面之间的实际接触。应用先前的建议，通过扫描金属表面的反射率来测量改性钢辊与蓝宝石窗口之间的接触面积。找到该区域的典型“狗骨头”形状。对于带有圆角边缘的滚轮，通过实验测得的接触面积的侧向延伸与通过新的精确数值程序获得的数值结果非常吻合。

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