Dynamics Analysis Of Transition Curve Parameters Of Heavy Haul Railway

With the development of economy and growing demand for cargo transport, how to develop technology of heavy railway has become an urgent need for the railway modernization. Increasing train axle load of heavy railway vehicle line system dynamics is more prominent and complex, so the line geometric condition also put forward higher requirements. Transition Curve as a special section which connects straight line with the circular curve, whose design parameters are reasonable directly affecting the overloaded train traffic safety and smoothness. Therefore, the paper which based on dynamics deeply analyze the Transition Curve of their line and length parameters, taking Transition Curve of heavy railway on as the object of the research. The main research work and reads as follows:(1) To investigate Transition Curve Theoretical analysis, design parameters of different types of rail-related literature at home and abroad, summarize the status of railway Transition Curve Parameters abroad, and put forward the main contents, methods and technical route of this paper.(2) Based on kinetic theory, a reasonable SIMPACK heavy railway vehicle-line system dynamics model by the dynamics analysis software has been established, and elaborate the principle and process modeling for heavy rail Transition Curve Parameters dynamic analysis Prerequisites.(3) To analyze the heavy train traffic speed, the length of Transition Curve and superelevation calculations and use the established vehicle-line system dynamics model to study the influence of heavy-duty vehicle speed of the vehicle-line system dynamics performance.(4) By the established vehicle-line system dynamics model, combined with heavy rail line conditions, to analyze different Transition Curves, length and other parameters on the performance of vehicle dynamics proposed 30t axle load Railway Transition Curves and select the length of the recommendation.