热场分布下汽车制动器的啸叫倾向性研究
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- 英文论文题名：Brake Squeal Propensity Considering Thermal Distortion
- 论文作者：杨雷爱心 ; 李以农 ; 钟银辉
- 英文论文作者：Yang Leiaixin ; Li Yinong ; Zhong Yinhui ; Chongqing University ; College of Automotive Engineering
- 年：2016
- 作者机构：重庆大学汽车工程学院;
- 论文关键词：热分布 ; ANSYS ; 啸叫 ; 模态分析 ; 复特征值分析
- 英文论文关键词：Thermal load ; ANSYS ; brake squeal ; modal analysis ; complex eigenvalue analysis
- 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：1450k
- 原文格式：O
- 会议级别：全国
摘要
本文基于有限元软件ANSYS对某种乘用车的制动盘与制动片进行自由模态分析,利用LMS实验平台进行实际测量用以印证有限元模型的精度。随后利用得到的有限元模型在ANSYS FLUENT环境下进行热场分析,得到在指定工况下制动盘与制动片的热分布。最后基于该热载荷对得到的模型进行采用复特征值法的热耦合模态分析,得到了热场分布下的啸叫频率。结果表明,与不考虑热分布的仿真结果对比,仿真的啸叫频率数量有明显减少,这也说明热场分布在汽车制动器啸叫倾向性的研究当中,是不可以忽略的一个部分。
A free-free modal analysis was conducted using ANSYS software for a passenger vehicle brake assembly and was verified later using LMS experiment tools.Thermal analysis was then exerted in ANSYS FLUENT under specific operating condition to get the thermal load which was then applied in the thermal- mechanical coupled modal analysis adopting complex eigenvalue analysis.The result of simulation indicated that squeal frequency numbers decreased as the thermal load was implemented into the calculation implying that the thermal load do play a part in brake squeal analysis.
A free-free modal analysis was conducted using ANSYS software for a passenger vehicle brake assembly and was verified later using LMS experiment tools.Thermal analysis was then exerted in ANSYS FLUENT under specific operating condition to get the thermal load which was then applied in the thermal- mechanical coupled modal analysis adopting complex eigenvalue analysis.The result of simulation indicated that squeal frequency numbers decreased as the thermal load was implemented into the calculation implying that the thermal load do play a part in brake squeal analysis.
引文
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[10]ANSYS Inc,ANSYS Workbench Help V16.2,ANSYS Inc,2015,V16.2,Chapter 4.1.1.
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[2]Abendroth,Harald,Boris Wernitz.The integrated test concept:Dyno-vehicle,performance-noise.No.2000-01-2774.SAE Technical Paper,2000.
[3]Kung S W,Dunlap K B,Ballinger R S.Complex Eigenvalue Analysis for Reducing Low Frequency Brake Squeal[J].SAE Transactions,2000,109.
[4]Rahim A,Bakar A,Kameil M,et al.Stability Analysis of Disc Brake Squeal Considering Temperature Effect[J].Jurnal Mekanikal,2006,22(22):26-38.
[5]Bajer,Andrzej,Vladimir Belsky,S.Kung.The influence of friction-induced damping and nonlinear effects on brake squeal analysis.SAE Technical Paper 2004-01(2004):2794.
[6]Hassan M Z,Brooks P C,Barton D C.Thermo-Mechanical Contact Analysis of Car Disc Brake Squeal[J].Sae International Journal of Passenger Cars Mechanical Systems,2008,1(1):1230-1239.
[7]Guan D,Huang J.The method of feed-in energy on disc brake squeal[J].Journal of Sound&Vibration,2003,261(2):297-307.
[8]Lang,A.M.,H.Smales.An Approach to the Solution of Disc Brake Vibration Problems.Proc IMechE Int Conf Braking of Road Vehicles,London:IMechE.1983.
[9]Junior M T,Gerges S N Y,Jordan R.Analysis of brake squeal noise using the finite element method;A parametric study[J].Applied Acoustics,2008,69(2):147-162.
[10]ANSYS Inc,ANSYS Workbench Help V16.2,ANSYS Inc,2015,V16.2,Chapter 4.1.1.
[11]Bakar,Abd Rahim Abu,et al.Modelling and Simulation of Disc Brake Contact Analysis and Squeal[D].Liverpoor:University of Liverpool,2005.
[12]ANSYS Workbench Mechanical Help Document V16.2.