| 重载列车纵向冲动机理及参数影响 |
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| 引用本文： | 魏伟,张东芹,张军.重载列车纵向冲动机理及参数影响[J].大连铁道学院学报,2011(1):1-6. |
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| 作者姓名： | 魏伟 张东芹 张军 |
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| 作者单位： | 大连交通大学载运工具先进技术重点实验室; |
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| 基金项目： | 牵引动力国家重点实验室自主研究课题(2009TPL-T02); 辽宁省教育厅高等学校科研计划资助项目(2008S036); 辽宁省自然科学基金资助项目(20102016) |
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| 摘 要： | 利用重载列车空气制动与纵向动力学联合仿真系统,仿真计算列车制动过程中的冲动过程,发现纵向冲动是由冲击作用和挤压作用共同形成,最大车钩力就是这两者中力较大的一个.如果最大车钩力是由冲击力产生,则最大车钩力发生在列车尾部,反之最大车钩力是挤压力时,最大车钩力发生在列车中部.车钩间隙对列车纵向冲击力和挤压力都有影响,车钩间隙对冲击力的影响比对挤压力影响更大,对后部车辆的影响更显著;车钩间隙越大,最大车钩力越大.闸瓦摩擦系数对挤压力影响较大,对冲击力影响较小;摩擦系数越大,挤压力越大,发生车位越向前移.
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| 关 键 词： | 重载列车 纵向冲动 动力学 制动 |
Study of Longitudinal Impulse Mechanism and Parameters' Impact of Heavy Haul Train |
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| WEI Wei,ZHANG Dong-qin,ZHANG Jun.Study of Longitudinal Impulse Mechanism and Parameters' Impact of Heavy Haul Train[J].Journal of Dalian Railway Institute,2011(1):1-6. |
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| Authors: | WEI Wei ZHANG Dong-qin ZHANG Jun |
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| Institution: | WEI Wei,ZHANG Dong-qin,ZHANG Jun(School of Traffic and Transportation Engineering,Dalian Jiaotong University,Dalian 116028,China) |
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| Abstract: | Using air brake and longitudinal dynamics combined simulation system,heavy haul train impulse process during train braking is simulated,It is found that the longitudinal impulse is formed together by the impact action and the squeezing action,and the maximum coupler force is the greater one of the two actions.If the maximum coupler force is generated by the impact force,the maximum coupler force occurs in the rear of the train.When the maximum coupler force is the squeeze force,it occurs near the middle of ... |
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| Keywords: | heavy haul train longitudinal impulse dynamic braking |
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