| 铁道货车非线性稳定性 |
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| 引用本文： | 王勇,曾京,张卫华.铁道货车非线性稳定性[J].交通运输工程学报,2002,2(2):36-40. |
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| 作者姓名： | 王勇 曾京 张卫华 |
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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： | 教育部跨世纪优秀人才培养基金资助项目 (教技函 [2 0 0 0 ] 1号 ) |
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| 摘 要： | 建立了具有 35个自由度的三大件转向架货车系统通用非线性数学模型 ,可用于分析普通三大件转向架、侧架交叉支撑转向架、自导向和迫导向径向转向架货车的非线性动力学特性。模型充分考虑了轮轨相互作用关系及悬挂系统的非线性因素 ,运用数值分叉理论分析车辆系统的非线性运动稳定性 ,对各导向机构和交叉支撑机构对三大件转向架货车运动稳定性的影响分别进行了研究 ,同时对货车系统有可能出现的准周期解及混沌运动也进行了探讨
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| 关 键 词： | 货车通用计算模型 稳定性 分叉 混沌 |
| 文章编号： | 1671-1637(2002)02-0036-05 |
| 修稿时间： | 2001年12月5日 |
Nonlinear stability of railway freight cars |
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| WANG Yong,ZENG Jing,ZHANG Wei hua.Nonlinear stability of railway freight cars[J].Journal of Traffic and Transportation Engineering,2002,2(2):36-40. |
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| Authors: | WANG Yong ZENG Jing ZHANG Wei hua |
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| Abstract: | A nonlinear genetic mathematical model for three piece bogie freight car with 35 degrees of freedom is set up,which can be utilized to analyze the nonlinear dynamic behavior of conventional,cross bracing,self steering and forced steering bogies respectively.The nonlinearities arising due to the wheel/rail interactions and suspension parameters of vehicle system are considered.Numerical bifurcation theory is used for analyzing the nonlinear stability behavior of the freight car.Then the influences of steering and cross bracing mechanisms on the stability of the three piece bogie freight car are studied,and the quasi periodic solutions,chaos in the system are discussed as well. 11 figs,9 refs. |
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| Keywords: | generic model of freight cars stability bifurcation chaos |
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