【作者】 胡艳； 陈光雄；

【Author】 HY Yan CHEN Guang-xiong(Tribology Research Institute,National Traction Power Laboratory,Southwest Jiao tong University,Sichuan Province,Chengdu 610031,China)

【机构】 西南交通大学摩擦学研究所牵引动力国家重点实验室；

【摘要】 摩擦噪声普遍存在各个应用领域,汽车工业、铁路制动、轮轨曲线等。影响摩擦噪声的因素很多如:材料摩擦特性、摩擦副之间的运动参数、运行环境等。本文通过球与平面摩擦副的往复循环运动,在相同的试验参数下,往复行程D=2mm;频率f=1 Hz;法向载荷Fn=50 N;试验环境条件为大气下干态(温度20-25℃,相对湿度RH 60%±10%),研究摩擦噪声与形貌之间的联系。在金属往复循环过程中,发现两接触表面在某种特定条件下会产生特定频率的尖叫噪声。此研究利用激光共聚焦对形貌进行扫描,得到粗糙度曲线的相关参数。发现在相同参数下不同微凸体分布的接触表面会激发产生系统不同频率的噪声。更多还原

【Abstract】 friction-induced noise exists in every application field,such as:Automotive industry,railway braking,wheel/rail curve etc.Many factors affect the friction noise such as: material friction characteristics,movement parameters between the friction pair,running environment,etc.In this article,through the ball and plane of the friction pair of reciprocating cycle movement,Under the same test parameters,Reciprocating stroke D = 2 mm;Frequency of f=1 Hz;The normal load Fn= 50 N;Test under the environmental conditions for atmospheric dry temperature 20 to 25 ℃,relative humidity(RH 60% + /-10%).Study that the connection between friction noise and morphology.In metal in the process of the reciprocating cycle,find two contact surface under certain conditions can produce specific frequency scream noise.This study using confocal laser scanning was carried out on the morphology,roughness curve related parameters.Found that the morphology of different contact surface under the same parameters will be the effects of different frequency noise.更多还原