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首页> 外文会议>World Tribology Congress III vol.1; 20050912-16; Washington,DC(US) >ADHESIVE COMPONENT OF FRICTION BETWEEN ROUGH SURFACES
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ADHESIVE COMPONENT OF FRICTION BETWEEN ROUGH SURFACES

机译：粗糙表面之间的摩擦胶

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摘要

Adhesion forces associated with molecular attraction have substantial influence on the characteristics of contact and the friction force between highly smooth and chemically pure surfaces. Bodies coated by surface liquid films can also experience significant adhesive attraction due to capillary pressure in liquid menisci formed in the gap between such surfaces. Contact problems for two elastic bodies taking into account adhesion were solved in [1,2] for various approximate forms of the potential of adhesive interaction. In [3], the interaction of two elastic bodies covered by films of fluid forming a meniscus in the gap between the bodies was investigated. The results show that when two elastic bodies possessing the surface energy cyclically approach each other and move away, the energy dissipation occurs. In the present study, contact problems for two elastic asperities taking into account adhesion of different nature are considered by using a unified approach. The energy dissipation in an approach-separation cycle is calculated. It is assumed that this energy is dissipated in each elementary approach-separation cycle for two asperities when rough surfaces move with respect to each other. This makes it possible to calculate the adhesive component of the friction force in sliding and rolling contacts of rough bodies.
机译：与分子吸引力相关的粘附力对接触特性以及高度光滑和化学纯净表面之间的摩擦力具有重大影响。由于在这些表面之间的间隙中形成的液体弯液面中的毛细压力，被表面液体膜涂覆的主体也可能遭受明显的粘合剂吸引力。在[1,2]中解决了考虑粘附力的两个弹性体的接触问题，以了解各种近似形式的粘附力。在[3]中，研究了两个弹性体之间的相互作用，这些弹性体被流体膜形成的弯月面所覆盖。结果表明，当两个具有表面能的弹性体周期性地相互靠近并移开时，就会发生能量耗散。在本研究中，通过使用统一的方法考虑了考虑到不同性质的粘附力的两个弹性粗糙体的接触问题。计算进近分离循环中的能量耗散。假设当粗糙表面相对于彼此移动时，此能量在每个基本进近分离循环中会耗散两个粗糙。由此可以计算出在粗糙体的滑动和滚动接触中的摩擦力的粘附分量。

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