沟槽织构对盘形制动噪声的影响  

Effect of groove-texture on disc braking noise

作　　者：张青[1] 崔晓璐[1] 陈光雄[1] 周仲荣[1] 

机构地区：[1]西南交通大学机械工程学院,四川成都610031

出　　处：《机械设计》2017年第2期62-67,共6页Journal of Machine Design

基　　金：国家自然科学基金资助项目(U1134103)

摘　　要：基于瞬态动力学原理,利用有限元软件ABAQUS建立了盘形制动有限元模型,研究车辆在制动过程中制动闸片的振动加速度及应力分布。结合相关仿生学设计,设计了3种有沟槽制动闸片,分析其对制动噪声的影响,发现径向沟槽闸片能有效地抑制连续制动噪声,而环形沟槽闸片不能抑制制动噪声,复合沟槽闸片对噪声的影响不如径向沟槽闸片明显。最后分析了闸片的弹性模量及制动模式对制动噪声的影响,发现弹性模量越小,沟槽对制动噪声的影响也越小,只有足够大的弹性模量,才能有效抑制制动噪声;沟槽无法抑制双侧制动噪声。Based on the transient dynamics principle, a finite element model of a disc brake system was established using ABAQUS. The vibration acceleration and stress distribution were studied during the braking process. Three different groove braking pads were designed combined with the relevant bionics design. The effect of the braking pads on the braking noise was analyzed. It was found that the groove braking pads in the radial direction could restrain the continuous braking noise, while the ring groove braking pad could not reduce continuous braking noise. The compound groove braking pad could not reduce braking noise as efficiently as the radial groove braking pad. Finally, the influence of the elasticity modulus of the braking pad and braking model on braking noise was analyzed. It was found that the groove texture had fewer effect on braking noise when the modulus of elasticity was smaller. Only when the elasticity modulus was big enough, the groove texture could suppress braking noise effectively. Braking noise of the disc braking system with double sides pads cannot be reduced by groove textures.

关 键 词：织构 制动噪声 尖叫 摩擦 

分 类 号：TH117.1[机械工程—机械设计及理论]