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铁路盘型制动噪声机理及其控制方法 被引量:6

Generation Mechanism of Railway Disc Brake Squeal and Its Suppression Method
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摘要 为了研究铁路盘型制动噪声的发生规律及其影响因素,测量了列车运行过程中各种制动工况条件下盘型制动器的摩擦噪声,获得了列车盘形制动摩擦噪声的发生规律;基于模态耦合引起制动摩擦噪声的机理,使用试验测得的闸片和制动盘之间的摩擦系数,建立了由制动盘、闸片、闸片托、制动杠杆和销等组成的全尺寸盘型制动系统摩擦噪声有限元预测模型,研究了铁路盘型制动噪声的影响因素.试验结果表明:盘型制动摩擦噪声的特征频率为256.78、3904.07 Hz和4320.38 Hz;在特定摩擦副的摩擦性能下,当制动缸推力为10.1 kN和12.3 kN时,盘型制动器最容易产生摩擦噪声,模型预测结果与实测摩擦噪声比较一致;制动闸片的弹性模量对盘型制动噪声有重要的影响,合理的闸片弹性模量有助于抑制制动摩擦噪声. In order to study the generation mechanism of railway disc brake squeal and its influencing factors,the disc brake squeal of a railway brake unit for several different brake conditions in a field test was measured,and the generation mechanism of railway disc brake squeal was obtained.Based on the mechanism of brake friction squeal caused by modal coupling,a full-size prediction model of brake squeal was established,which included a disc,two brake pads,two pad holders,two levers,and several pins.The friction coefficients between the pads and disc from a laboratory test were used in the prediction of brake squeal.The factors affecting brake squeal were studied in the model.The test results show that the characteristic frequencies of disc brake friction squeal are 256.78,3904.07 Hz and 4320.38 Hz,respectively.When the thrust force is equal to 10.1 kN and 12.3 kN,disc brakes are most likely to produce friction squeal in brake applications,the predicted results of the model are in agreement with the measured frictional squeal.The elastic modulus of the brake pad has an important influence on disc brake squeal,the reasonable elastic modulus of brake pad is helpful to suppress the brake friction squeal.
作者 乔青峰 杨伟东 朱琪 陈光雄 QIAO Qingfeng;YANG Weidong;ZHU Qi;CHEN Guangxiong(Technology Center,CRRC Qingdao Sifang Locomotive&Rolling Stock Co.,Ltd.,Qingdao 266111,China;School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China)
出处 《西南交通大学学报》 EI CSCD 北大核心 2021年第1期62-67,共6页 Journal of Southwest Jiaotong University
基金 国家自然科学基金(51775461)。
关键词 铁路盘形制动 制动尖叫 摩擦噪声 摩擦耦合 制动压力 railway disc brake brake squeal friction-induced noise mode coupling brake pressure
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  • 1师汉民 谌刚 吴雅.机械振动系统(下册)[M].武汉:华中理工大学出版社,1992.374-378.
  • 2ERIKSSON M,JACOBSON S.Friction behaviour and squeal generation of disc brakes at low speeds[J].Proceedings of the Institution of Mechanical Engineers,Part D,2001,215:1 245-1 256.
  • 3CHEN Guangxiong,ZHOU Zhongrong,KAPSA Ph,et al.Effect of surface topography on formation of squeal under reciprocating sliding[J].Wear,2002,253:411-424.
  • 4IBRAHIM R A,MADHAVAN S,QIA0 S L,et al.Experimental investigation of friction.induced noise in disc brake systems[J].International Journal of Vehicle Design,2000,23:218-240.
  • 5SPURR R T.A theory of brake squeal[J].Proceedings of the Automobile Division,Institution of Mechanical Engineers,1961(1):33-52.
  • 6KINKAID N M,O'REILLY O M,PA_PADOPOULOS P.Automotive disc brake squeal[J].Journal of Sound and Vibration.2003.267:105-166.
  • 7IBRAHIM R A.Friction-induced vibration,chatter,squeal,and chaos[J].Applied Mechanics Review,1994,47(7):227-253.
  • 8LILES G D.Analysis of disc brake squeal using finite element methods[R].1989,SAE Paper 891150.
  • 9NACK W V Brake squeal analysis by finite elements[J].International Journal of Vehicle Design,2000,23:263-275.
  • 10OUYANG Huajiang,MOTIERSHEAD J E,BROOKFIELD D J.et aL.Methodology for the determination of dynamic instabilities in a car disc brake[J].International Journal of Vehicle Design,2000,23:241-262.

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