高速列车通风式制动盘的散热特性分析

刘静娟; 刘莹; 康光林; 韩委委

doi:10.13433/j.cnki.1003-8728.2018.0618

高速列车通风式制动盘的散热特性分析

doi: 10.13433/j.cnki.1003-8728.2018.0618

1.
南昌大学机电工程学院, 南昌 330031

基金项目:

江西省科技合作计划项目（2014BDH80021）与江西省精密驱动与控制重点实验室开放基金项目（PLPDC-KFKT-201605）资助

详细信息

作者简介:
刘静娟(1992-),硕士研究生,研究方向为计算机仿真、制动器性能,jingjuan_liu@163.com

通讯作者:
刘莹,教授,博士生导师,lying@ncu.edu.cn

计量
- 文章访问数: 250
- HTML全文浏览量: 29
- PDF下载量: 6
- 被引次数: 0
出版历程
- 收稿日期: 2017-05-30
- 刊出日期: 2018-06-05

Analysis of Heat Dissipation Performance for Ventilated Brake Disc in High Speed Train

1.
School of Mechanical and Electrical Engineering, Nanchang University, Nanchang 330031, China

摘要

摘要: 通风式制动盘的散热特性对提高列车的制动性能至关重要，筋板结构是影响通风式制动盘散热特性的关键因素。本文考虑了紧急制动工况，采用计算流体力学分析方法（Computational fluid dynamics，CFD）分析了不同筋板结构制动盘的散热特性，筋板结构类型包括径向直筋板结构（Z型）、圆弧筋板结构（A型）、矩形筋板结构（R型）和梯形筋板结构（T型）。研究了制动盘的温度分布、平均对流换热系数和总热流量的变化情况。结果表明：A型制动盘结构散热性能较好；与Z型制动盘相比，A型制动盘的温度分布较均匀，温度降低了7.3%；平均对流换热系数较高；总热流量提高了32.3%。因此，A型制动盘筋板结构可有效地提高制动盘的散热特性。
- 温度分布 /
- 对流换热系数 /
- 总热流量 /
- 散热特性
Abstract: Heat dissipation performance for ventilated brake disc plays an important role in improving brake performance, and ribs structure is a key factor that influence on heat dissipation performance for ventilated brake disc. In this paper, the emergency braking condition was considered, and the computational fluid dynamics (CFD) method was applied to analyzethe brake disc which had four different ribs structure, including radial rib structure (Z-type), arc rib structure (A-type) rectangular rib structure (R-type) and trapezoidal rib structure (T-type). The temperature distribution, average convective heat transfer coefficient and total heat flux were studied on the brake disc. The results showed that the A-type brake disc had the better heat dissipation performance among the four kinds of different ribs structure; comparing with the Z-type brake disc, the A-type brake disc had the more uniform temperature distribution, in which the temperature fell 7.3%, higher average convective heat transfer coefficient and total heat flux improved 32.3%. Hence, the A-type rib structure could effectively improve the heat dissipation performance for ventilated brake disc.
- temperature distribution /
- convective heat transfer coefficient /
- total heat flux /
- heat dissipation performance

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参考文献(15)

[1]	周素霞,杨月,谢基龙.高速列车制动盘瞬态温度和热应力分布仿真分析[J].机械工程学报,2011,47(22):126-131 Zhou S X, Yang Y, Xie J L. Analysis of transient temperature and thermal stress distribution on the high-speed strain brake disk by simulation[J]. Journal of Mechanical Engineering, 2011,47(22):126-131(in Chinese)
[2]	余志生.汽车理论[M]. 5版. 北京:机械工业出版社,2009 Yu Z S. Car theory[M]. 5th ed. Beijing:China Machine Press, 2009(in Chinese)
[3]	曲杰,苏海赋.基于代理模型的通风盘式制动器制动盘结构优化设计[J].工程力学,2013,30(2):332-339 Qu J, Su H F. Optimization design on ventilated disc brake based on surrogarte model technology[J]. Engineering Mechanics, 2013,30(2):332-339(in Chinese)
[4]	杜旭之,杨志刚,李启良,等.某乘用车制动盘冷却特性的研究[J].同济大学学报(自然科学版),2016,44(5):787-793 Du X Z, Yang Z G, Li Q L, et al. Brake disc cooling characteristics of a passenger car[J]. Journal of Tongji University (Natural Science), 2016,44(5):787-793(in Chinese)
[5]	Yan H B, Feng S S, Lu T J, et al. Experimental and numerical study of turbulent flow and enhanced heat transfer by cross-drilled holes in a pin-finned brake disc[J]. International Journal of Thermal Sciences, 2017,118:355-366
[6]	Yan H B, Zhang Q C, Lu T J. Heat transfer enhancement by X-type lattice in ventilated brake disc[J]. International Journal of Thermal Sciences, 2016,107:39-55
[7]	Munisamy K M, Shuaib N H, Yusoff M Z, et al. Heat transfer enhancement on ventilated brake disk with blade inclination angle variation[J]. International Journal of Automotive Technology, 2013,14(4):569-577
[8]	郑伟奇,康宁,刘献栋,等.基于非线性回归的制动盘通风道结构优化[J].汽车工程,2016,38(11):1351-1356 Zheng W Q, Kang N, Liu X D, et al. Structural optimization of ventilation channels in brake disc based on nonlinear regression[J]. Automotive Engineering, 2016,38(11):1351-1356(in Chinese)
[9]	Raj K T R, Ramsai R, Mathew J, et al. Numerical investigation of fluid flow and heat transfer characteristics on the aerodynamics of ventilated disc brake rotor using CFD[J]. Thermal Science, 2014,18(2):667-675
[10]	Pevec M, Potrc I, Bombek G, et al. Prediction of the cooling factors of a vehicle brake disc and its influence on the results of a thermal numerical simulation[J]. International Journal of Automotive Technology, 2012,13(5):725-733
[11]	潘利科, 韩建民, 李志强, 等. 列车制动盘通风散热的数值仿真[J]. 北京交通大学学报, 2015,39(1):118-124 Pan L K, Han J M, Li Z Q, et al. Numerical simulation for train brake disc ventilation[J]. Journal of Beijing Jiaotong University, 2015,39(1):118-124(in Chinese)
[12]	Jiang L, Jiang Y L, Yu L, et al. Thermal analysis for brake disks of SiC/6061 Al alloy co-continuous composite for CRH3 during emergency braking considering airflow cooling[J]. Transactions of Nonferrous Metals Society of China, 2012,22(11):2783-2791
[13]	杨世铭.传热学基础[M].2版.北京:高等教育出版社,2003:2-10 Yang S M. Heat transfer[M]. 2nd ed. Beijing:Higher Education Press, 2003:2-10(in Chinese)
[14]	Chopade M, Valavade A. Experimental investigation using CFD for thermal performance of ventilated disc brake rotor[J]. International Journal of Automotive Technology, 2017,18(2):235-244
[15]	Prabhakar S, Prakash S, Kumar M S, et al. Performance analysis of ventilated brake disc for its effective cooling[C]//Proceedings of 2015 National Conference on Recent Trends and Developments in Sustainable Green. Chennai, India, 2015,974:358-361