沟槽对界面振动及摩擦磨损特性的影响

发布时间：2018-04-09 11:34

本文选题：沟槽　切入点：磨损　出处：《摩擦学学报》2017年04期

【摘要】：选用球-面/面-面两种不同的接触模式,分别探究了摩擦界面沟槽的存在对界面振动及摩擦磨损特性的影响.结果表明:沟槽具有捕获磨屑的能力,能够有效地减轻磨屑对界面磨损的影响,但接触模式的不同,沟槽棱边上的振动及摩擦磨损特性差异显著.在球-面接触模式下,沟槽的存在打断了界面的连续接触,导致界面摩擦信号产生突变,此外,球试样滑过沟槽时与沟槽棱边产生的撞击加剧了棱边的磨损,进而影响了沟槽收集磨屑的效率.在面-面接触中,沟槽的存在实时改变了界面的接触状态,从而导致了界面上接触压力的分布发生了转移,从而改变了界面力信号,此外,块试样与沟槽棱边并没有出现明显的撞击作用,因此沟槽的棱边保存得较为完好.
[Abstract]:The influence of the existence of grooves on the vibration and friction wear characteristics of the interface was investigated by using two different contact modes: ball, surface / surface.The results show that the groove has the ability to capture the debris, which can effectively reduce the impact of the debris on the interface wear. However, the vibration and friction and wear characteristics on the edge of the groove are significantly different with different contact modes.In the ball-surface contact mode, the existence of grooves interrupts the continuous contact of the interface, resulting in a sudden change in the friction signal of the interface. In addition, the impact of the ball sample on the edge of the groove increases the wear of the edge of the groove when it slides through the groove.Furthermore, the efficiency of grooves collecting debris is affected.In surface-surface contact, the existence of grooves changes the contact state of the interface in real time, which leads to the transfer of the contact pressure distribution on the interface, which changes the interface force signal.There is no obvious impact between the sample and the edge of the groove, so the edge of the groove is well preserved.
【作者单位】：西南交通大学机械工程学院摩擦学研究所;
【基金】：国家自然科学基金项目(51675448,51375408) 教育部新世纪优秀人才支持计划基金(NCET-13-0974)资助~~
【分类号】：TH117.1

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