Research On The Curve Passing Problem Of Linear Motor Light Load Wheel-rail Tram

The coal production of Inner Mongolia accounts for percent17of China’s totalcoal, but, because of the rugged terrain, there is a serious transportation problem. Atpresent, the rail capacity is a serious shortage and the motor transport costs are veryexpensive, the costs of transportation increasing significantly bring lots of trouble to thecoal companies and other. To this issue during “the11th Five-Year”, the linear motortransportation system is raised in Inner Mongolia. The tram of linear motor transportsystem run steadily, climb ability (the maximum gradient of ordinary wheel-railvehicles is about30‰, linear motor tram is about80‰), the area is small and it iseasily to automatic control, low noise, do not emit harmful gases, the environment couldbe protected with it; running, maintenance and energy consumption costs is low. Atpresent, the research consequent of the linear motor transport system has beensuccessfully applied to the650meter test line which is built in Jinshan DevelopmentZone Hohhot.In this paper, the tram of the test line system is studied about the curve passingissue. The tram model is built with Solidworks, the dynamic model is given, and thedynamic characteristics of tram is simulated in straight and curve line with SolidworksMotion. given the vehicle track curve the circumstances, of the wheel-rail forces,derailment coefficient, wheel hedge angle, wheel and rail wear rate are given at thedifferent speeds, when tram is in the curve that radius is25000mm.in the conclusion itis found that the performance of tram meet the basic requirements, but when the speedbecomes fast. The Curve Passing performance decrease significantly. To solve thisproblem, the vehicle design is improved.the possible solutions program include treadround the cone, suspension elastic connection, as well as a passive radial agencies basedon existing vehicle design and radial system program. in the last with Dynamicssimulation, it indicate that improvement measures can greatly improve the performanceof the tram curve passing, vehicle wheel-rail lateral forces, derailment coefficient, roundhedge angle, wheel and the rate of rail wear is reduced accordingly. The conclusions ofthe paper are practical significance to the design and manufacture of the tram in thefuture.