润滑剂对轮轨摩擦噪声影响的试验研究  

Experimental Study on the Effect of Lubricant on the Noise Characteristics of Wheel/Rail Friction

作　　者：于可辉 何旭辉[1,2] 蔡陈之 邹云峰[1,2] YU Kehui;HE Xuhui;CAI Chenzhi;ZOU Yunfeng(School of Civil Engineering,Central South University,Changsha 410075,China;National Engineering Laboratory for High Speed Railway Construction,Central South University,Changsha 410075,China)

机构地区：[1]中南大学土木工程学院,长沙410075 [2]中南大学高速铁路建造技术国家工程实验室,长沙410075

出　　处：《噪声与振动控制》2020年第6期148-152,共5页Noise and Vibration Control

基　　金：国家自然科学基金资助项目(51925808,U1534206)。

摘　　要：采用MMS-2A型微机控制摩擦磨损试验机,分别对3种润滑介质(水、水基润滑剂与油基润滑剂)作用下的轮轨摩擦系数、滚动噪声与振动进行试验研究。结果表明:与水介质相比,润滑剂会使摩擦系数降低,降低轮轨噪声与振动效果显著。摩擦磨损试验结束后,采用光学三维轮廓仪测量试样表面形貌。结果表明,在水介质作用下试样表面粗糙,磨痕较深;在润滑剂作用下,试样表面十分光整,磨痕极浅。The MMS-2A twin-disc test device was used for the investigation of wheel/rail friction under different lubrication conditions.The friction coefficient,contact and vibration of the wheel/rail with three kinds of lubricant,such as water,water-based lubricant and oil-based lubricant,were measured and analyzed.The results show that the lubricants will lead to low adhesion coefficient.Compared with water lubrication,the water-based lubricant and oil-based lubricant have a significant effect on vibration and noise reduction.After the test,the contact surface of the wheel/rail specimens was measured by a 3-D optical profile testing instrument.The results show that the contact surface is rough and the friction track is deep when using water as the lubricant.While the wheel/rail contact surface is smooth and the friction track is shallow when using water-based lubricant and oil-based lubricant.

关 键 词：声学 轮轨噪声 润滑剂 摩擦系数 总声压级 表面粗糙度 

分 类 号：U260.3311[机械工程—车辆工程]