汽车制动器摩擦振动自锁-滑动理论分析

详细信息    查看官网全文

• 英文论文题名：Analysis of Automotive Brake Frictional Vibration Sprag-slip Theory
• 论文作者：张立军 ; 刘理 ; 孟德建
• 英文论文作者：Zhang Lijun ; Liu Li ; Meng Dejian ; School of Automotive Engineering ; Tongji University ; Collabrative Innovation Center for Intelligent New Energy Vehicle ; Tongji University
• 年：2016
• 作者机构：同济大学汽车学院;同济大学智能型新能源汽车协同创新中心;
• 论文关键词：摩擦振动 ; 制动尖叫 ; 自锁-滑动理论 ; 粘滞-滑动理论
• 英文论文关键词：frictional vibration ; brake squeal ; Sprag-slip theory ; Stick-slip theory
• 会议召开时间：2016-10-26
• 会议录名称：2016中国汽车工程学会年会论文集
• 英文会议录名称：Proceedings of 2016 SAE-China Congress
• 语种：中文
• 分类号：U463.5
• 学会代码：QCGC
• 会议名称：2016中国汽车工程学会年会暨展览会
• 会议地点：中国上海
• 主办单位：中国汽车工程学会
• 学会名称：中国汽车工程学会
• 页数：7
• 文件大小：1085k
• 原文格式：O
• 会议级别：全国

摘要

本文针对一类由集总参数柔体和刚体摩擦副构成的摩擦振动系统,建立了单自由度非线性动力学模型,采用动力学建模、数学公式推导和数值仿真计算的手段,指出系统不存在"稳定-滑动"状态的条件,后续分析表明该条件即为自锁控制条件,进而得到系统产生自锁-滑动效应的发生条件。通过对比发现,自锁-滑动和粘滞-滑动较为近似,都存在动摩擦状态和静摩擦状态的循环切换,但是自锁-滑动和粘滞-滑动在发生条件和动态响应特征上存在不少区别,包括系统刚度参数是否突变、是否存在动静摩擦系数差、临界带速的计算公式和振动周期的计算公式。
A one-degree-of-freedom nonlinear dynamic model is established,to describe dynamics of a kind of frictional system with friction pairs of a lumped parameter mass and a rigid mass.By means of dynamic modeling,mathematical formula derivation and numerical calculation,the condition under which a system does not possess a steady sliding state is achieved,which is showed to be the spragging control condition in further research.Then,the generating condition under which a system produces sprag-slip effect is obtained.Finally,the comparison indicates that sprag-slip and stick-slip are very similar.They both switch between dynamic friction status and static friction status.But there are differences between sprag- slip and stick- slip in generating condition and dynamic response characteristics.The differences include whether the sudden change of system stiffness parameters occurs,whether static friction coefficient is greater than the dynamic friction coefficient,the critical speed formula of belt and the formula of vibration period.

引文

[1]Akay A.Acoustics of friction[J].The Journal of the Acoustical Society of America,2002,111(4):1525-1548.
    [2]Kinkaid N M,O'Reilly O M,Papadopoulos P.Automotive disc brake squeal[J].Journal of sound and vibration,2003,267(1):105-166.
    [3]王国彪.国家自然科学基金委员会机械工程学科发展战略报告(2011-2020)[M].北京:科学出版社,2010.
    [4]Hoffmann N P,Gaul L.Friction Induced Vibrations of Brakes:Research Fields and Activities[R].SAE Technical Paper,2008.
    [5]Ibrahim R A.Friction-induced vibration,chatter,squeal,and chaos—partⅠ:Mechanics of contact and friction[J].Applied Mechanics Reviews,1994,47(7):209-226.
    [6]Ibrahim R A.Friction-induced Vibration,Chatter,Squeal,and Chaos—PartⅡ:Dynamics and Modeling[J].Applied Mechanics Reviews,1994,47(7):227-253.
    [7]张立军,刁坤,孟德建,等.摩擦引起的振动和噪声的研究现状与展望[J].同济大学学报:自然科学版,2013,41(5):765-772.
    [8]Spurr R T.A Theory of Brake Squeal[J].Proceedings of the Institution of Mechanical Engineers;Automobile Division,1961,15(1):33-52.
    [9]Sinou J J,Thouverez F,Jezequel L.Analysis of Friction and Instability by the Centre Manifold Theory for a Nonlinear Sprag-slip Model[J].Journal of Sound and Vibration,2003,265(3):527-559.
    [10]Hoffmann N,Gaul L.A Sufficient Criterion for the Onset of Sprag-slip Oscillations[J].Archive of Applied Mechanics,2004,73(9-10):650-660.
    [11]Kang J,Krousgrill C M.The Onset of Friction-induced Vibration and Spragging[J].Journal of Sound and Vibration,2010,329(17):3537-3549.
    [12]刘鸿文.材料力学I[M].北京:高等教育出版社,2004.
    [13]Denny M.Stick-slip Motion;an Important Example of Self-excited oscillation[J].European Journal of Physics,2004,25(2):311.