The Research On Technical Operation Time Simulation Of Large Marshalling Station

The simulation research of large marshalling station technical operation time is mainly served for the large-scale scientific research project 985 of "marshalling yard operation simulation platform". It is one part of it.Based on the analysis of large marshalling yards mobile equipment (including trains, vehicles, leading locomotive, shunting locomotive) operation process, I analyzed and summarized the traction calculation problems of each mobile equipment operation time. Built simulation model of large marshalling yards technical operation time, and used computer programming to develop large marshalling yards technical operation time simulation software. Finally. I designed the data base API between the large marshalling station operation time simulation software and "the large marshalling yards operation simulation platform".My research content mainly includes the following aspects:1. Analysised the large marshalling station technical operation, including passenger train and freight train's arriving and departure operation; and the leading locomotive in-out locomotive depot operation, turn back operation. Shunting locomotive push vehicles to hump disintegration assignments, editing and marshalling operations and so on. Summarized the speed-distance curve graph of train operation route, and described the simulation problems of technical operation time on the marshalling station.2. Establised the simulation modle of large marshalling station technical operation. Analysised characteristics of large marshalling station's train traction calculation, and pointed out the traction calculation difference between station and section. Based on the train model and technical operation process simulation calculation research, I designed the train traction calculation model of large marshalling station technical operation time.3. Using C++ programming to develop a software of the large marshalling station technical operation time simulation. I expounded the structure design and the system implementation of the simulation system in detail; and did several test of operation condition on the simulation system. Compared to other reference software, it proved that the simulation system is feasible.4. For designing the database API between the large marshalling station operation time simulation software and the "large marshalling yards operation simulation platform'" system, it makes the technical operation chart system in large marshalling yard operation simulation platform can invoke the result at any time.The software of large marshalling station technical operation simulation is not only can accurate calculation all kinds of technical operation time, still can simulate the process of technical operation, for the "large marshalling yard operation simulation platform" provides operation time standards. Compared to the domestic and foreign existing simulation software, it is the more suitable for China's large marshalling yards to the actual situation of transport organization.