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The application of a fuzzy algorithm for the determination of the shortest chain to correct disorganized train traffic
traffic control railway mathematical model shortest chain uncertainty algorithm
2010/11/2
The problem of the correction of the disorganized train traffic schedule is analyzed (aiming to minimize general costs related to the expenditure of energy and time wasted by people and equipment). Di...
空调列车车厢内CO2浓度的模糊控制
空调列车 CO2浓度 模糊控制
2011/1/18
以列车车厢内CO2浓度为控制对象,实现对新风量的控制.在车内CO2浓度控制系统中,应用模糊控制理论,将车内CO2浓度与设定浓度之间的误差以及误差变化率作为控制系统的输入量,新风阀门开度的变化作为输出量,并建立各输入、输出量的模糊集、论域、隶属函数以及模糊控制规则;确定列车硬座车厢内CO2浓度与时间、新风量之间的函数关系式,并应用所建立的模糊控制系统对列车硬座车厢内的CO2浓度进行模糊控制仿真实验,...
新建铁路基本走向决策支持系统
铁路选线 基本走向 消去与选择转换法 决策支持系统
2011/1/14
为了研究铁路绿色设计,必须选择合理的新建铁路基本走向方案决策方法·为此,在应用再改进的ELECTRE于新建铁路基本走向决策支持系统中,建立新建铁路基本走向决策支持系统,编制该模型的应用软件,并将其应用到某新建铁路基本走向选择中,给出了相应的方法和步骤,确定了新建铁路基本走向方案的优先顺序,结果证明此方法和模型是有效的.
Making up and renovation of trains
traction rolling stocks train optimization economic effect
2010/11/3
Major constituent parts of the railway system are rolling stock and various objects making its infrastructure. Their maintenance is rather expensive, while renovation requires large investments. The r...
The evaluation of implementation impact of centralized traffic control systems in railways
centralized traffic control expert ranking fuzzy integral trapezoid membership
2010/11/3
In this article we propose to evaluate the utility of implementation of Centralized Traffic Control System EbiScreen using expert evaluations in indistinct numbers, in the form of trapezoid membership...
The principles of competitiveness in the reformed system of the Lithuanian railways
competitiveness the reformed system the Lithuanian railways
2010/11/3
The principles of competitiveness in the reformed system of the Lithuanian railways.
Analysis of Lithuanian railway network
Lithuanian railway network the economical operation indexes
2010/11/4
Analysis of Lithuanian railway network.
The problems of railway track side automatic systems in Lithuania
railway track side automatic systems Lithuania
2010/11/4
In Lithuania automatic railway block systems are being installed further and they are based on permanent blocking sections. There are some doubts about the purposefulness of installing such systems: f...
基于二维不可压缩流假设,采用k-ε湍流模型,对横向风中不同来流攻角作用下的YZ22型车辆单体和双层客车车辆单体,以及前者在16 m,后者在24 m预应力混凝土“T”形简支梁桥上的多种工况模型绕流进行了数值模拟,分别得到YZ22型车辆和双层客车车辆在16 m和24 m预应力混凝土“T”形简支梁桥上气动三分力系数.研究结果表明:在横向风作用下,YZ22型车辆和双层客车车辆的气动三分力系数与各自单独存在...
Problems and perspectives of traffic of high speed passenger trains
Problems and perspectives of traffic high speed passenger trains
2010/11/4
The article reviews transport policy in foreign countries in realization of the traffic of high speed passenger trains. The main European Crete multimodal transport corridors having branches in Lithua...
On the terminal of a railway with freights the following operations are executed: the outswapping from coaches, warehousing, grouping, distribution to the directions of transportation, straight line o...
Technical and economical criteria to estimate suspension (liquidation) of dividing points on railway lines
Technical and economical criteria suspension (liquidation) of dividing points railway lines
2010/11/4
Changing conveyance dimensions require to change railway line parameters too. If these dimensions increase, the development of railway lines needs increasing. The expenses of a railway line are saved ...
The significance of train traffic graphs and the principles of their formation are discussed. The motion of every train is described by its schedule. Elements of traffic graphs are analysed thoroughly...
