汽车木陶瓷制动衬片热弹性耦合分析  

Thermoelastic coupling analysis of automobile wood ceramic brake linings

作　　者：杜丹丰[1] 王麒麟 郭秀荣[2] DU Danfeng;WANG Qilin;GUO Xiurong(School of Traffic and Transportation,Northeast Forestry University,Harbin 150040,China;College of Mechanical and Electrical Engineering,Northeast Forestry University,Harbin 150040,China)

机构地区：[1]东北林业大学交通学院,哈尔滨150040 [2]东北林业大学机电工程学院,哈尔滨150040

出　　处：《重庆理工大学学报（自然科学）》2023年第2期134-141,共8页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金项目(51972050);黑龙江自然科学基金联合引导项目(LH2020E006)。

摘　　要：提出了一种以木陶瓷为原料的汽车制动衬片,建立了木陶瓷制动衬片的盘式制动器三维模型,模拟多种工况制动时木陶瓷制动衬片作用下盘式制动器的热弹性耦合特性,并基于Archard磨损模型及ABAQUS软件中的UMESHMOTION子程序实现木陶瓷制动衬片磨损深度的数值模拟。结果表明:以木陶瓷材料作为汽车制动摩擦材料,制动过程中制动盘温度峰值为254.25℃,相较于传统金属型制动衬片制动盘温度峰值低9.91℃,应力分布均匀,有利于减少制动盘热裂纹的产生,同时降低制动盘“热衰退”效应对车辆制动效能稳定性的影响。木陶瓷制动衬片制动过程中温度最高可达281.41℃,远低于木陶瓷材料热分解温度,具备良好的可靠性。以木陶瓷作为制动衬片摩擦材料,单次高速紧急制动磨损深度最大不超过2.11μm,具备良好的耐磨性。In this paper,an automobile brake lining made of wood ceramic is proposed,and a 3D model of a disc brake of a wood ceramic brake lining is established to simulate the thermoelastic coupling characteristics of the disc brake under the action of the wood ceramic brake lining under various braking conditions.Based on the Archard wear model and the UMESHMOTION subroutine in the ABAQUS software,the numerical simulation of the wear depth of the wood ceramic brake lining is realized.The results show that,when wood ceramic is used as the friction material of automobile braking,the peak temperature of the brake disc during the braking process is 254.25℃,which is 9.91℃lower than that of the traditional metal brake lining,and the stress distribution is uniform.It is beneficial to reduce the generation of thermal cracks in the brake disc,and at the same time reduce the influence of the“thermal decay”effect of the brake disc on the stability of the braking performance of the vehicle.The temperature of the wood ceramic brake lining can reach a maximum of 281.41℃during the braking process,which is far lower than the thermal decomposition temperature of the wood ceramic material,and has good reliability.With wood ceramic as the friction material of the brake lining,the maximum wear depth of a single high-speed emergency braking does not exceed 2.11μm,which has good wear resistance.

关 键 词：汽车 木陶瓷 制动衬片 热弹性耦合 磨损 

分 类 号：U465.3[一般工业技术—材料科学与工程]