Brake Judder Analysis of Disc Brake Considering Thermal Deformation
[1]PAN Gongyu,FENG Yaqi,CHEN Lin,et al.Brake Judder Analysis of Disc Brake Considering Thermal Deformation[J].Journal of Zhengzhou University (Engineering Science),2022,43(02):58-64.[doi:10.13705/j.issn.1671-6833.2022.02.006]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
43卷
Number of periods:
2022 02
Page number:
58-64
Column:
Public date:
2022-02-27
- Title:
- Brake Judder Analysis of Disc Brake Considering Thermal Deformation
- Keywords:
- brake judder; thermal-mechanical coupling simulation; thermal deformation; brake pressure variation; brake torque variation
- CLC:
- TH212；TH213.3
- DOI:
- 10.13705/j.issn.1671-6833.2022.02.006
- Abstract:
- In order to improve the prediction accuracy of brake judder by brake dynamic model, a brake dynamic model was established, in which the contact form between components and the displacement input of model were more in line with actual situation. Firstly, the finite element model of ventilated disc brake was established by using finite element software, and the disc thickness variation caused by friction heat was calculated by using thermal-structure coupling method. Then, an eight-degree-of-freedom dynamic model of brake system was established in the contact form of face to face between disc and block. At the same time, the initial disc thickness variation of brake disc with judder fault was measured by experiment. The initial thickness variation was superimposed with thickness variation obtained through thermal-structural coupling simulation, and the superimposed displacement was taken as displacement of brake block in dynamic model. The brake pressure variation and brake torque variation was predicted by dynamic simulation. Finally, the reliability of model was verified by experiments. The results showed that the error between simulation result and test result of brake pressure variation is 13.18%, and the error between simulation result and test result of brake torque variation was 11.15%.It was concluded that the superposition input of initial disc thickness variation and thickness variation generated by thermal deformation of disc could make the brake dynamic model have a good accuracy in predicting brake judder, and the brake surface contact model established could effectively predict brake judder.
- References:
-
［1］ 黄俍．汽车盘式制动器制动抖动分析及改进［D］．北 京: 清华大学，2012．
［2］ BＲYANT D，FIELDHOUSE J，CＲAMPTON A． et al． Thermal brake judder investigations using a high speed dynamometer［EB/OL］．( 2008－ 04－ 14) ［2021－ 04－ 20］．https : / /doi．org /10．4271 /2008－01－0818．［3］ LESLIE A C． Mathematical model of brake caliper to determine brake torque variation associated with discthickness variation ( DTV) input［EB/OL］．( 2004－ 10－ 10) ［2021 － 06 － 13］． https: / / doi． org /10． 4271 / 2004－01－2777．［4］ 孟德建，张立军，余卓平．基于制动器多点接触模型 的初始 SＲO 和厚薄差对制动抖动的影响分析［J］． 振动与冲击，2010，29( 7) : 43－49，120．［5］ 张三川，郭向利，田金坤．汽车鼓式制动器的多工况 热-力耦合仿真分析［J］．郑州大学学报( 工学版) ， 2018，39( 4) : 92－96．［6］ 苏海赋．盘式制动器热机耦合有限元分析［D］．广 东: 华南理工大学，2011．［7］ 陈磊．基于复特征值法的盘式制动器 NVH 特性研 究与优化［D］．镇江: 江苏大学，2019．［8］ 汪德成．盘式制动器热机耦合特性及疲劳寿命预测 研究［D］．上海: 上海工程技术大学，2016．［9］ 张立军，权循宇．基于单点接触模型的制动抖动分 析［C］/ /2009 年中国汽车工程学会年会论文集．北 京: 机械工业出版社，2009: 495－499．［10］ 谢俊颖．汽车盘式制动器制动抖动机理与仿真分析 研究［D］．重庆: 重庆大学，2016．［11］ ISHAK M Ｒ，ABU BAKAＲ A Ｒ，SHAMSUDIN S，et al． Experimental investigation of low speed disc brake judder vibration ［J ］． Applied mechanics and materials，2013，471: 25－29．［12］ 尹东晓，张立军，宁国宝等．制动力矩波动台架试验研 究［J］．振动、测试与诊断，2005，25( 2) : 117－121，155．
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Last Update:
2022-02-25