高速动车组制动闸片温度与应力分布规律研究

夏毅敏; 吴元; 顾健健; 卞章括; 张振华

高速动车组制动闸片温度与应力分布规律研究

1.
中南大学高性能复杂制造国家重点实验室, 长沙 410083

基金项目:

国家高技术研究发展计划项目(863计划,2006AA03Z508)

中南大学研究生教育创新工程选题项目(1343-77302)资助

详细信息

作者简介:
夏毅敏(1967-)，教授，博士，研究方向为机械设计及理论和液压，xiaymj@mail.csu.edu.cn

计量
- 文章访问数: 256
- HTML全文浏览量: 17
- PDF下载量: 5
- 被引次数: 0
出版历程
- 收稿日期: 2011-07-22
- 刊出日期: 2015-06-10

Temperature and Stress Distribution for the High-speed Multiple Units Brake Pad

1.
State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083

摘要

摘要: 高速动车组制动闸片的温度和应力分布,是影响动车安全运行的关键。基于传热学相关知识和有限元数值模拟技术,考虑了弹性模量、泊松比、导热系数和比热容等材料参数随温度变化的影响,确定了制动过程中闸片热载荷和换热系数的计算方法,建立了闸片制动过程中的热传导模型,并利用ANSYS软件建立了闸片热-力耦合三维仿真模型。通过仿真得到了制动过程中闸片的温度场和应力场分布规律。仿真结果表明:制动62 s后,闸片温度达到最大值535℃;制动75 s后,闸片应力达到最大值333 MPa。所研制的某型闸片符合工程要求。
- 制动闸片 /
- 温度场 /
- 热力耦合分析 /
- 有限元
Abstract: The temperature and stress distribution in brake pads is a key factor for the high-speed multiple units safe operation. According to the heat transfer theory and using the finite element simulation technology, a heat con-duction model of brake pad was established in this paper. The impact due to the elastic modulus, poisson ratio, thermal conduction and specific heat was considered and the calculation method of thermal load and heat transfer coefficient was also presented. A 3 D thermal-stress coupling simulation model for the braking of brake pad was built by software ANSYS. Then the dynamic temperature and stress distribution in the braking of brake pad were ob-tained and verified by experiemnts. The simulation result shows that the brake pad would reach the max temperature 535 ℃at 62 s and the max stress 333 MPa at 75 s. Owing to the temperature simulation results in accordance with the expermental results basically, it could demonstrate that the simulation method was effective and this type of brake pads studied in the paper met the practice requirements.
- brake pad /
- temperature field /
- thermal stress coupling analysis /
- finite element

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参考文献(16)

[1]	Yang X J X,Wang J C.Fan.Simulation study of temperaturefield and stress field of disc brake based on direct coupling meth-od[J].Materials Science Forum,2009,628:287～292
[2]	Jeongguk K,et al.Analysis of hot spots evolution on brake discusing high-speed infrared camera[J].Key Engineering Materi-als,2010,417:317～320
[3]	Kasem H,Brunel J F,Dufrenoy P,Siroux M,Desmet B.Ther-mal levels and subsurface damage induced by the occurrence ofhot spots during high-energy braking[J].Wear,2011,270(10):355～364
[4]	Ji-Hoon Choi,Lee I.Finite element analysis of transient ther-moelastic behaviors in disk brakes[J].Wear,2004,257:47～58
[5]	杨莺,王刚.机车制动盘三维瞬态温度场与应力场仿真[J].机械科学与技术,2005,24(10):1257～1260
[6]	王广达,方玉诚,罗锡裕.粉末冶金摩擦材料在高速列车制动中的应用[J].粉末冶金业,2007,17(4):38～42
[7]	韩凤麟.铜基粉末冶金的过去、现状及前景[J].粉末冶金工业,2009,19(1):38～48
[8]	Anoop S,Natarajan S,Kumaresh Babu S P.Analysis of factorsinfluencing dry sliding wear behaviour of Al/SiCp-brake pad ttri-bosystem[J].Materials&Design,2009,30(9):3831～3838
[9]	Abdel-Rahim,Y M,et al.Generalized braking characteristics offriction pad synthetic graphite composites[J].Tribology Inter-national,2010,43(4):838～843
[10]	Park Jung Hwan,Chung Jin Oh,Kim Hyang Rae.Friction char-acteristics of brake pads with aramid fiber and acrylic fiber[J].Industrial Lubrication and Tribology,2010,62(2):91～98
[11]	李继山,胡万华,焦标强.动车组粉末冶金闸片研制[J].中国铁道科学,2009,30(3):141～144
[12]	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):29～32
[13]	Zhang Y B,Zhang Y Y.Coupling analysis of frictional heat un-der control of disc brake anti-skid brake system[J].AdvancedMaterials Research,2011,199:721～728
[14]	杨智勇,韩建民,李卫京等.制动盘制动过程的热—机耦合仿真[J].机械工程学报,2010,46(2):88～92
[15]	杨强.列车制动盘温度场和应力场仿真与分析[D].北京:北京交通大学,2009
[16]	张仁俭,孙启新.基于ANSYS的冷罩外壳有限元热应力分析[J].机械科学与技术,2009,28(12):1600～1603