| 优化结构闸片对制动盘温度及热应力的影响 |
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| 引用本文： | 农万华,符蓉,韩晓明.优化结构闸片对制动盘温度及热应力的影响[J].大连交通大学学报,2012,33(4):62-65. |
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| 作者姓名： | 农万华 符蓉 韩晓明 |
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| 作者单位： | 大连交通大学连续挤压教育部工程研究中心,辽宁大连,116028 |
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| 基金项目： | 国家973计划资助项目，教育部博士基金资助项目 |
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| 摘 要： | 为了研究列车制动产生摩擦热对制动盘的耐热疲劳性能的影响,分析了摩擦热流分布与闸片结构的关系,提出一种优化闸片摩擦块固定位置,达到改善制动盘摩擦热分布的方法,采用有限元软件ABAQUS对优化前后的闸片制动过程进行了数值模拟,结果表明:与闸片优化前相比,闸片优化后制动盘最高温度和热应力分别下降的17％和23％,沿制动盘径向分布更均匀.
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| 关 键 词： | 闸片结构 制动盘 温度场 热应力场 数值模拟 |
Influence of Optimizing Brake Pads Structure on Brake Disc Temperature and Thermal Stress |
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| NONG Wan-hua
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FU Rong
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HAN Xiao-ming.Influence of Optimizing Brake Pads Structure on Brake Disc Temperature and Thermal Stress[J].Journal of Dalian Jiaotong University,2012,33(4):62-65. |
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| Authors: | NONG Wan-hua FU Rong HAN Xiao-ming |
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| Institution: | (Engineering Research Center of Continuous Extrusion Ministry of Education,Dalian Jiaotong University,Dalian 116028,China) |
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| Abstract: | In order to study the effects of friction heat generation on thermal fatigue performance of brake disc during train braking,the relationship between friction heat flux distribution and brake pad structure was discussed,and a method of optimizing the brake pad friction blocks to improve the distribution of friction heat on brake disc was proposed.By finite element software ABAQUS,the braking process using the optimized brake pads and non-optimized brake pads was simulated respectively.The results show that the temperature of the optimized brake disc brake pads are decreased and the radial distribution of the thermal stress is more uniform along the brake disc.The results show that compared with the brake pads before optimization,the highest temperature and thermal stress of the optimized brake discs brake pads are decreased by 17% and 23% respectively. |
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| Keywords: | brake pad brake disc temperature field thermal stress field numerical simulation |
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