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列车外形
相关语句
  train shape
     Based on the results of numerical computation, full scale tests and wind tunnel tests,the investigations have been made on the dependence of air pressure pulse from two trains passing by each other on the following influence factors: the relative speed, absolute speed, speed ratio, track interval, train shape (section figuration, length and broadness ratio of streamlined head, largest outline of head longitudinal section and largest outline of head horizontal view) and the train formation.
     根据数值模拟计算、实车和风洞试验结果 ,研究了列车交会压力波与相对速度、绝对速度、速度比、线间距、列车外形 (断面形状、流线型头部长细比、头部纵剖面最大轮廓线和俯视图最大轮廓线 )以及列车编组方式等之间的关系。
短句来源
  train contour
     Application of Industrial Visual Design and Aerodynamics in Streamlined Train Contour Design
     工业造型和空气动力学在流线型列车外形设计中的应用
短句来源
     (2) According to the above result, the difference of the distributing of flow outfield, pressure field and the aerodynamic parameters among these models are analyzed and compared. The proper parameters of contour design of streamlined train head were achieved and some results about the relations of different contours and different running states were acquired. They provide theoretical foundation for the development of metro train contour design.
     (2)根据计算结果分析比较各模型的外流场、压力场的分布以及各气动性能参数的不同,得出具有良好气动性能的车头外形设计参数,并分析出不同外形、不同工况下车头气动参数的关系,为地铁列车外形设计提供了理论基础。
短句来源
     In design of the streamlined train contour, both the aerodynamic performance and the contour pleasing to the eyes should be considered, as well as the structural and technological requirements.
     流线型列车外形设计中既要考虑气动性能 ,又要考虑外形美观 ,同时还需兼顾结构及工艺的要求。
短句来源
     In the paper, through an example of design, the application of industrial visual design and aerodynamics in the streamlined train contour design is described,
     文章通过一设计实例说明工业造型和空气动力学在流线型列车外形设计中的应用
短句来源
  “列车外形”译为未确定词的双语例句
     The shape design method of streamlined train head was realized on the ARX of AutoCAD and the Open I-deas of I-deas software flat roof on the Non Uniform Rational B Spline curve and surface mathematic model,the shape of streamlined train head was designed freely and quickly according to people's will.
     运用NURBS曲线曲面的数学模型,在AutoCAD的ARX及I-deas的Open I-deas开发平台上,开发了流线型列车头部外形设计模块,实现了按照人们的意志,自由、快速地设计复杂的空间三维曲面流线型列车外形
短句来源
     The results show that this streamline shape designed for domestic maglev train is better than Shanghai maglev train(TR08) in aerodynamic performance,and the aerodynamic drag force of domestic maglev train is 33.84KN at the speed of 4300 km/h,while TR08 is 54.07KN;
     通过比较分析,此次选用的国产磁浮列车外形,列车以430km/h运行时三节车总的空气阻力为33.84kN,而上海磁浮列车为54.07kN;
短句来源
     In view of the contour design of high speed trains,the principles,functions and actions of the specially developed design software for complex space free curved surface are discussed. The software has solved the problem of contour design of high speed trains successfully.
     针对高速列车外形设计,讨论了所开发的专用复杂空间自由曲面设计软件的原理、功能、作用,用此软件已成功地解决了高速列车外形设计的难题。
短句来源
     Through researching into lots of correlative information of domestic and abroad locomotive's streamlined surface design, we have developed a locomotive surface CAD system-LSurfCAD based on AutoCAD2000 platform, which can satisfy the insistent demands of the works for more needs of locomotive curve surface design.
     通过对国内外列车流线型外形设计相关资料广泛研究的基础上,开发出一个基于AutoCAD2000平台的列车外形CAD系统—简称LSurfCAD,它可以基本满足生产现场对列车曲面外形设计的要求。
短句来源
     At the same time, based on recent study of locomotive surface design, the development trend of curve surface design has been understood.
     同时,通过对列车外形设计的近期研究,了解了曲面外形设计的发展趋势。
短句来源
更多       
  相似匹配句对
     Shape Design Method for Streamlined Train Head
     流线型列车头部外形设计方法
短句来源
     WIND TUNNEL TEST INVESTIGATION OF AERODYNAMIC CONTOUR OF HIGH SPEED TRAIN
     高速列车气动外形风洞试验研究
短句来源
     Train in Plateau
     高原列车
短句来源
     Power supply system of passenger train
     客运列车供电系统
短句来源
     The shape of FDC body was irregular.
     FDC外形不规则;
短句来源
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  train shape
Second, the wave train shape of a tide gauge record is perhaps the single most sensitive measure of any tsunami simulation.
      
The stimulation lasts 0.5 s, train shape, and this stimulation is performed every 10 s.
      


This paper presents the numerical method of the flow field around high speed trains using Navier-stokes equations. The mixed difference scheme of the implicit and explicit al-gorithm is adapted to improve the convergence characteristic. The program system Train3D that is based on this method is developed. The aerodynamics and flow structures for high speed trains are obtained using this program system.

给出了用低速N-S方程求解高速列车绕流的数值计算方法,采用显隐式结合的方法来加快收敛速度,基于该方法编制了计算软件系统Train3D,用该软件系统对高速列车外形的外流场进行了数值模拟,获得了该外形的空气动力特性和流场结构。

In view of the contour design of high speed trains,the principles,functions and actions of the specially developed design software for complex space free curved surface are discussed.The software has solved the problem of contour design of high speed trains successfully.

针对高速列车外形设计,讨论了所开发的专用复杂空间自由曲面设计软件的原理、功能、作用,用此软件已成功地解决了高速列车外形设计的难题。

In this article, the numerical computation of using finite volume method to solve the unsteady compressible three-dimensional Navier-Stokes equations has been made on the situation of two trains passing by each other. The method can be applied to deal with the calculation of the flow field of two trains passing by each other with different shapes and operation velocity. The technique of domain decomposition has been adopted in the numerical computation of two trains passing by each other in one flow field. The...

In this article, the numerical computation of using finite volume method to solve the unsteady compressible three-dimensional Navier-Stokes equations has been made on the situation of two trains passing by each other. The method can be applied to deal with the calculation of the flow field of two trains passing by each other with different shapes and operation velocity. The technique of domain decomposition has been adopted in the numerical computation of two trains passing by each other in one flow field. The method of making data exchange step by step has been used to resolve the relative movement between train and train or train and flow field. The technique of CAD has been used for domain modeling and meshes generation. The difference is small than 10% between the results of the air pressure pulse from two trains passing by each other obtained by utilizing the techniques above mentioned and the results obtained from full-scale tests.

采用求解三维可压缩非定常 N- S方程的方法 ,对列车交会问题进行数值模拟计算 ,该方法可以用于解决两交会列车外形及运行速度完全不相同的流场数值计算情况。采用分区计算的方法解决同一流场区域内包含两相对运行列车的问题 ;用不断进行数据交换的方法解决列车与列车、列车与流场之间的相对运动问题 ;采用 CAD技术生成网格。同类情况下计算结果与试验结果比较相差小于 10 %。

 
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