200 km/h客货共线线路动货交会集装箱装载稳定性研究OA

To verify the safety of meeting operations between electric multiple units(EMUs)and container trains on 200 km/h mixed passenger-freight railways,this paper investigated container loading stability based on real train tests on the Kunming-Chuxiong-Dali Line,focusing on straight tunnel scenarios.Aerodynamic pressure and acceleration data were monitored to analyze the variations in aerodynamic lateral force,lift force,and acceleration of containers during meeting operations.The overturning stability and horizontal movement stability were verified with reference to the Railway Freight Loading Reinforcement Rules.The results show that the transverse overturning stability of 20 ft containers is generally better than that of 40 ft containers.Under the maximum meeting speeds of 200 km/h and 120 km/h,the transverse overturning stability of containers under different loading conditions meets safety requirements.The structural strength of FT-R locks is verified by calculation,and the results satisfy the requirements for horizontal movement stability.The main factors affecting the aerodynamic load on containers are the meeting speed and the EMU type,while the variation in the container train's running speed has little influence on the aerodynamic lateral force.Compared with distributed power EMUs,the aerodynamic lateral force on containers is greater when meeting concentrated power EMUs.The research results can provide empirical support for meeting operations between EMUs and freight trains on 200 km/h mixed passenger-freight railways and offer a reference for the safety and operational optimization of high speed rail freight.