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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) >DYNAMIC CONTACT BETWEEN A RIGID INDENTER AND A ZENER HALF-SPACE
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DYNAMIC CONTACT BETWEEN A RIGID INDENTER AND A ZENER HALF-SPACE

机译：刚性输入和Zener半空间之间的动态接触

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摘要

This paper investigates the dynamic contact between an axi-symmetric rigid paraboloid and a standard solid (Zener) viscoelastic half-space. The load consists of a pulse cosine applied over a step function. Following the theory developed by Ting, analytical expression of contact radius for an advancing contact is derived. For receding contact, contact radius is numerically obtained. Contact pressures for increasing and decreasing contacts are derived. The influence of load frequency is evidenced. At low frequencies, contact pressure has an initial Hertz shape and then, as the contact increases, a relaxed one. As the contact reaches its maximum, the pressure tends again to an elastic pattern. Experimental tests were carried out on a contact between a polymeric sphere and a glass plate. A good agreement is found with theoretical results by measuring contact radius.
机译：本文研究轴对称刚性抛物面与标准固体（Zener）粘弹性半空间之间的动态接触。负载由施加在阶跃函数上的脉冲余弦组成。根据Ting提出的理论，推导了前进接触的接触半径的解析表达式。对于后退接触，通过数值获得接触半径。得出用于增加和减少接触的接触压力。负载频率的影响是显而易见的。在低频下，接触压力具有初始的赫兹形状，然后随着接触的增加而具有松弛的形状。随着接触达到最大，压力再次趋向于弹性模式。在聚合物球和玻璃板之间的接触上进行了实验测试。通过测量接触半径可以找到与理论结果的良好一致性。

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