| 基于有限元分析的交通流理论与技术研究 |
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| 引用本文： | 李福祥,李文勇,李长军,甄玥然.基于有限元分析的交通流理论与技术研究[J].武汉水运工程学院学报,2012(1):124-128. |
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| 作者姓名： | 李福祥 李文勇 李长军 甄玥然 |
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| 作者单位： | [1]桂林电子科技大学机电工程学院,桂林541004 [2]潍坊市城西派出所,潍坊261100 |
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| 基金项目： | 国家自然科学基金项目资助（批准号：50808050） |
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| 摘 要： | 针对交通流模型的数值求解和大量数据处理问题,以有限元法为基础,从流体与交通流的比拟中,分析了交通流的可压缩性和粘性.将交通流参数与流体参数进行了对比.从交通流是无旋流动的机理出发,引入了交通流的势函数,建立了交通压力的数学模型.基于流体有限元的思想对交通流进行了研究.在一定速度条件下,用ANSYS-FLOTRAN仿真了车道变换时的车流变化情况.通过软件后处理模块,对结果进行了讨论,结果显示：ANSYS-FLOTRAN可以较好的模拟交通流状况.
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| 关 键 词： | 交通流 流体 有限元法 ANSYS-FLOTRAN |
Traffic Flow Theory and Technology Research Based on Finite Element Analysis |
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| Institution: | Li Fuxiang1) Li Wenyong1) Li Changjun2) Zhen Yueran1) (College of Mechanical and Electrical Engineering,Guilin Universityof Electronic Technology,Guilin 541004,China)1)(The West City Police Station of Weifang,Weifang 261100,China)2) |
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| Abstract: | According to the numerical solution and the massive data handling problem of traffic flow model,based on the finite element method,from fluid and traffic flow analogy,the traffic flow compressibility and viscosity are analyised.the traffic flow parameters and fluid parameters are compared.From the traffic flow is irrotational flow principle,the traffic flow potential function are introduced,established the mathematical model of the transportation pressure is established in order to pave the way to finite element analysis for the traffic flow.Traffic flow characteristics are deeply analyzed based on fluid finite element ideas.Under a certain speed condition of lane changing,simulation of the change of the traffic flow with ANSYS-FLOTRAN.Through post-processing module,the results are discussed.The results show： ANSYS-FLOTRAN can better simulate traffic flow situation. |
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| Keywords: | traffic flow fluid finite element method ANSYS-FLOTRAN |
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