高速动车组盘式制动装置制动盘温度场仿真分析与研究
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摘要
以CRH380BL型高速动车组的动车转向架上轴盘制动为研究对象,基于摩擦功率方法,对轴盘进行热负荷仿真研究及边界条件的确定。利用ANSYS软件,对动车组在350 km/h紧急制动过程中,制动盘的三维瞬态温度场在径向、轴向以及深度方向上的分布情况进行仿真,并从制动盘所能承受的最高温度方面分析其制动能力。结果表明:轴盘摩擦表面在制动初期温度呈环状分布,由于散热筋具有良好的散热功能,随后在散热筋之间的摩擦环面上产生不断地向周围扩散的团状高温区;制动后期,制动盘的温度呈层状分布,温度从制动盘的上表面自上而下递减,同时温度随着靠近轴盘轴心孔位置而渐渐降低,这表明轴盘制动过程中轴盘的温度分布受轴盘结构的影响。
Based on the friction power method,the thermal load simulation and boundary condition of the CRH380 BL type high speed EMU(Electric multiple unit) are studied. The ANSYS software is used to simulate the distribution of the 3 D transient temperature field in the radial,axial and deep direction of the brake disc during the emergency braking process of 350 km/h,and the braking capability is analyzed from the highest temperature that the brake disc can bear. The results show that the friction surface of the shaft disk has a circular distribution at the initial stage of braking,because the radiation rib has a good heat dissipation function,and then the cluster of high temperature area is produced on the friction ring between the cooling ribs; and next,the temperature of the brake disc is layered and the temperature decrease progressively from the upper surface to down surface of the brake disc.At the same time,the temperature decreases gradually,and the temperature decreases with the position of the axle center hole. Results indicate that the temperature distribution of the shaft disc is influenced by the shaft disk structure during the shaft disc braking process.
Based on the friction power method,the thermal load simulation and boundary condition of the CRH380 BL type high speed EMU(Electric multiple unit) are studied. The ANSYS software is used to simulate the distribution of the 3 D transient temperature field in the radial,axial and deep direction of the brake disc during the emergency braking process of 350 km/h,and the braking capability is analyzed from the highest temperature that the brake disc can bear. The results show that the friction surface of the shaft disk has a circular distribution at the initial stage of braking,because the radiation rib has a good heat dissipation function,and then the cluster of high temperature area is produced on the friction ring between the cooling ribs; and next,the temperature of the brake disc is layered and the temperature decrease progressively from the upper surface to down surface of the brake disc.At the same time,the temperature decreases gradually,and the temperature decreases with the position of the axle center hole. Results indicate that the temperature distribution of the shaft disc is influenced by the shaft disk structure during the shaft disc braking process.
引文
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[15]韩建辉,聂宏,魏小辉.飞机刹车副的三维瞬态温度场和热应力仿真分析[J].现代制造工程,2012,(10):110-115Han J H, Nie H, Wei X H. Simulation of threedimensional transient temperature field and thermal stress of airplane braking disc[J]. Modern Manufacturing Engineering,2012,(10):110-115(in Chinese)
[16]陈德玲,张建武,周平.高速轮轨列车制动盘热应力有限元研究[J].铁道学报,2006,28(2):39-43Chen D L,Zhang J W,Zhou P. FEM thermal stress analysis of high-speed locomotive braking discs[J].Journal of the China Railway Society,2006,28(2):39-43(in Chinese)
[2]陈炳伟,汪鹏,王贤龙,等.制动闸片偏磨原因分析及改进措施[J].机车车辆工艺,2016,(3):44-46Chen B W,Wang P,Wang X L,et al. Cause analysis and improvement measures of brake pad partial wear[J].Locomotive&Rolling Stock Technology,2016,(3):44-46(in Chinese)
[3]郑剑云,郭晓晖,包子骞,等.提速客车制动盘热应力有限元分析[J].机车车辆工艺,2002,(3):4-6,27Zheng J Y,Guo X H,Bao Z Q,et al. FEM analysis of the thermal stress in the brake disc for speed-elevated passenger cars[J]. Locomotive&Rolling Stock Technology,2002,(3):4-6,27(in Chinese)
[4]顾磊磊,左建勇,朱剑月,等.基于有限元法的动车组制动盘制动能力分析[J].机车电传动,2009,(5):7-9Gu L L,Zuo J Y,Zhu J Y,et al. Research of EMUs disc braking ability based on finite element method[J].Electric Drive for Locomotives,2009,(5):7-9(in Chinese)
[5]蒋志飞.高速动车组制动过程建模及控制器设计[D].南昌:华东交通大学,2016Jiang Z F. Emu braking process modeling and controller design[D]. Nanchang:East China Jiaotong University,2016(in Chinese)
[6]仲野政志,陈海.提高盘形制动性能的研究[J].国外铁道车辆,2002,(1):33-36Zhong Y Z Z,Chen H. Research on improvement of disc braking performance[J]. Foreign Rolling Stock,2002,(1):33-36(in Chinese)
[7]姚远,张红军,刘进华.高速机车轴盘制动装置温度场分析[J].机车电传动,2008,(1):24-27Yao Y,Zhang H J,Liu J H. Analysis of temperature field of axle disc brake equipment for high-speed locomotive[J]. Electric Drive for Locomotives,2008,(1):24-27(in Chinese)
[8]李冠军,陈喜红,钟源,等.米轨动车组动力转向架基础制动装置型式选择[J].铁道机车车辆,2013,33(S1):74-77Li G J,Chen X H,Zhong Y,et al. Fundamental brake device type selection of malaysia meter gauge motor bogie[J]. Railway Locomotive&Car,2013,33(S1):74-77(in Chinese)
[9]王磊,钱坤才,姚屏萍.CRH2型动车组用制动闸片瞬态温度场仿真分析[J].林业机械与木工设备,2016,44(3):25-28Wang L,Qian K C,Yao P P. Simulation analysis of transient temperature field of brake pads for CRH2 EMU[J].Forestry Machinery&Woodworking Equipment,2016,44(3):25-28(in Chinese)
[10]王皓,高飞,农万华,等.闸片结构对制动盘温度场及热应力场的影响[J].铁道机车车辆,2010,30(4):29-32Wang H,Gao F,Nong W H,et al. Effect of pad structure on temperature field and thermal stress field of brake disc[J]. Railway Locomotive&Car,2010,30(4):29-32(in Chinese)
[11]刘莹,宋涛,曾志勇,等.矿车盘形制动器热-结构耦合场的数值模拟[C]//第十一届全国摩擦学大会论文集.兰州:中国机械工程学会分,2013:1-5Liu Y,Song T,Zeng Z Y,et al. Numerical simulation of thermal-structural coupling field of mine car disc brake[C]//Proceedings of the 11th National Tribology Conference. Lanzhou:State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Tribological Branch of China Mechanical Engineering Society,2013:1-5(in Chinese)
[12]张乐乐,杨强,谭南林,等.基于摩擦功率法的列车制动盘瞬态温度场分析[J].中国铁道科学,2010,31(1):99-104Zhang L L,Yang Q,Tan N L,et al. Analysis of the transient temperature field of train brake discs based on friction power method[J]. China Railway Science,2010,31(1):99-104(in Chinese)
[13]邵林,张犀,杨欣.更高速动车组非黏着制动应用研究[J].铁道机车车辆,2016,36(3):37-42,87Shao L,Zhang X,Yang X. Research of non-adhesion braking application on high-speed EMU[J]. Railway Locomotive&Car, 2016,36(3):37-42,87(in Chinese)
[14]于大海.制动盘材料摩擦热斑的试验研究与数值模拟[D].北京:北京交通大学,2011Yu D H. Experimental research and simulation analysis on hot spot of brake disk material[D]. Beijing:Beijing Jiaotong University,2011(in Chinese)
[15]韩建辉,聂宏,魏小辉.飞机刹车副的三维瞬态温度场和热应力仿真分析[J].现代制造工程,2012,(10):110-115Han J H, Nie H, Wei X H. Simulation of threedimensional transient temperature field and thermal stress of airplane braking disc[J]. Modern Manufacturing Engineering,2012,(10):110-115(in Chinese)
[16]陈德玲,张建武,周平.高速轮轨列车制动盘热应力有限元研究[J].铁道学报,2006,28(2):39-43Chen D L,Zhang J W,Zhou P. FEM thermal stress analysis of high-speed locomotive braking discs[J].Journal of the China Railway Society,2006,28(2):39-43(in Chinese)