Research On The Medium-speed Maglev Line Technical Parameters Based On Dynamics Analysis

With the determination of the urban development pattern by rail transit,urban rail transit in China has developed rapidly in the past 20 years.Nowadays,urban rail transit has been mainly built on the subway,and it has gradually shifted to a variety of coordinated development stages,such as subway,light rail,monorail,maglev and tram.Because of its fast speed,strong climbing ability,low energy consumption,small operation noise,safe and comfortable,no emission and less pollution,the magnetic floating transportation system has become a hot spot in the research and engineering practice.For several years,our country of the low-speed maglev high speed maglev were studied,and the breakthrough of research results and good engineering practice case,but the present stage our country lack of applicable to the design speed of 100 km/h to 200 km/h the medium-speed maglev line between technical standards.Aiming at the field of vacancy research in China,this article focus on the target value of speed is 160 km/h and 200 km/h new medium-speed maglev vehicle characteristics,study match the medium-speed maglev line profile parameters of new vehicles,and finally gives the recommended value.In the aspect of statics,the statics theory is calculated based on the study method of the maglev line technical parameters.In the aspect of dynamics,the vehicle-line coupling model is established based on SIMPACK multi-body dynamics simulation software,and considering the orbital irregularity,and a series of vehicle dynamic response simulation analysis is carried out.The influence of the technical parameters on the dynamic response of the vehicle was studied.In addition,the data and conclusions of the velocity target value of 100km/h and the following maglev studies are combined to further improve the conclusion of this paper.Finally obtained the target speed of 160 km/h and 200 km/h value,meet the dynamic evaluation standard of the medium-speed maglev vertical curve minimum curve radius,maximum gradient,minimum slope length and minimum clip length of slope recommended value.