| 牵引力对机车横向运动稳定性的影响 |
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| 引用本文： | 司道林,王开云,翟婉明,刘建新.牵引力对机车横向运动稳定性的影响[J].交通运输工程学报,2009,9(1). |
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| 作者姓名： | 司道林 王开云 翟婉明 刘建新 |
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| 作者单位： | 西南交通大学,牵引动力国家重点实验室,四川,成都,610031
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| 基金项目： | 四川省杰出青年学科带头人培养计划项目，教育部新世纪优秀人才支持计划，国家自然科学基金 |
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| 摘 要： | 为了探明机车牵引状态下的横向稳定性,采用多体动力学软件SIMPACK建立了某型提速机车动力学模型,以非线性临界速度作为机车横向稳定性的评判指标,并采用数值积分方法计算了机车临界速度,研究了牵引系数对机车直线和曲线临界速度的影响规律.研究结果表明:机车牵引力的存在改变了轮轨切向蠕滑力的大小和作用方向;随着牵引系数的增大,机车在直线和曲线上的临界速度均先增大后减小;机车曲线上的临界速度低于直线上的,同一牵引系数下,曲线半径越小,临界速度越低;在牵引工况下,轮对横移量不宜再作为机车曲线稳定性的判定指标,采用轮轨纵向蠕滑力对稳定性进行评判更为合理.
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| 关 键 词： | 机车稳定性 牵引力 临界速度 蠕滑力 |
Effect of traction force on lateral stability of locomotive |
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| SI Dao-lin,WANG Kai-yun,ZHAI Wan-ming,LIU Jian-xin.Effect of traction force on lateral stability of locomotive[J].Journal of Traffic and Transportation Engineering,2009,9(1). |
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| Authors: | SI Dao-lin WANG Kai-yun ZHAI Wan-ming LIU Jian-xin |
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| Institution: | Traction Power State Key Laboratory;Southwest Jiaotong University;Chengdu 610031;Sichuan;China |
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| Abstract: | In order to investigate the lateral stability of locomotive under traction condition,a dynamics model of a speed-raising locomotive was put forward by using MBS software SIMPACK. The nonlinear critical speed of locomotive was regarded as the judging index of the lateral stability. The numerical integration method was adopted to calculate the critical speed. The effect of the traction coefficient on the critical speeds was studied,including the speeds on tangent and curved tracks. The result indicates that t... |
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| Keywords: | locomotive stability traction force critical speed creep force |
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