闸片沟槽织构对盘式制动尖叫的影响  

Effect of Groove-texture on Disc Braking Squeal

作　　者：朱琪 唐铭族 唐丽 邓阳阳 ZHU Qi;TANG Mingzu;TANG Li;DENG Yangyang(Chongqing Key Laboratory of Green Design and Manufacturing of Intelligent Equipment,Chongqing Technology and Business University,Chongqing 400067,China;College of Mechanical Engineering,Chongqing Technology and Business University,Chongqing 400067,China)

机构地区：[1]重庆工商大学智能装备绿色设计与制造重庆市重点实验室,重庆400067 [2]重庆工商大学机械工程学院,重庆400067

出　　处：《润滑与密封》2024年第4期133-137,共5页Lubrication Engineering

基　　金：重庆市教委科学技术研究项目(KJQN202200846);重庆工商大学高层次人才科研启动项目(CTBU950322041)。

摘　　要：为研究制动闸片沟槽织构对盘式制动系统制动尖叫的影响,基于摩擦自激振动理论,建立盘式制动系统普通闸片和沟槽闸片有限元模型,采用复特征值分析法研究该盘式制动系统的摩擦自激振动特性。利用该有限元模型开展沟槽的宽度和深度的参数化分析,获得其对制动尖叫的影响规律。结果表明:制动闸片与制动盘间的摩擦自激振动是导致制动尖叫发生的主要原因,沟槽型闸片对抑制制动尖叫具有明显效果;当闸片沟槽深度在5~20 mm区间内,盘式制动系统的稳定性随沟槽深度的增大而呈现逐渐降低的趋势,表明沟槽深度越小,发生摩擦自激振动的可能性越小;在沟槽宽度5~20 mm范围内,随沟槽宽度的增大,盘式制动系统的稳定性先增大后降低,在沟槽宽度为10 mm时,系统发生制动噪声的可能达到最大。To study the effect of groove-texture on disc brake squeal of disc brake systems,based on the frictional self-excited vibration theory,the finite element models of disc brake system with ordinary pad and grooved pad were established respectively.The friction self-excited vibration characteristics of the disc brake systems were studied by using complex eigenvalue analysis method.The parametric analysis of groove width and depth was carried out by using the finite element model,and the variation law of their effects on brake squeal was obtained.The results show that the friction self-excited vibration between the brake pad and the brake disc is the main cause of brake squeal.The grooved pad has a significant effect on restraining the possibility of brake squeal.Parametric analysis shows when the groove depth is in the range of 5 mm to 20 mm,the stability of disc braking system shows a gradual decrease with the increase of groove depth,indicating that the smaller the groove depth,the less the possibility of friction self-excited vibration.When the groove width is in the range of 5 mm to 20 mm,the stability of the brake system decreases first and then increases.When the groove width is 10 mm,the system is most likely to brake squeal.

关 键 词：盘式制动 制动噪声 沟槽织构 摩擦自激振动 复特征值分析 

分 类 号：TH117.1[机械工程—机械设计及理论] U211[交通运输工程—道路与铁道工程]