Simulation And Calculation Of Traction Ventilation System Of Plateau Dual-power Locomotive

At present,with the rapid development of China’s economy and technology,the railway and rail transit industry has gradually entered people’s field of vision,while the rapid development of China’s rail transit industry,the vigorous construction of high-speed rail and the continuous opening of the subway have also brought people a lot of convenience in life,and the research and application of rail vehicles are constantly becoming challenges.With the continuous improvement of vehicle design speed and the continuous change of working environment,the study of vehicle traction ventilation system has become a key aspect to ensure the safety,stability and normal operation of vehicles.In the operation of the plateau dual-power locomotive vehicle,the traction motor as one of the power sources,the area where the traction motor is located will generate a lot of heat,if the heat generated can not be reasonably released or converted,then the accumulation of heat has a great impact on the life of the parts and structure,and even produces a sudden failure,affecting the normal operation of the vehicle.The traction ventilation system is to ventilate and dissipate heat for a series of parts of the vehicle that generate heat such as the traction motor,so considering the important role of the traction ventilation system,it is particularly important for the relevant research on the structural design and improvement of the traction ventilation system.In this paper,taking the traction ventilation system of the plateau dual-power locomotive as the research object,the two bogie traction ventilation systems of the vehicle are simulated and analyzed separately.Firstly,the traction ventilation system is modeled by using Creo software,and the CFD calculation platform is built for the traction ventilation system in ANSYS FLUENT software.Then,according to the design requirements,the traction ventilation system is simulated and analyzed,and the cloud map including speed,pressure,flow rate,etc.is output,as well as the calculation result of the air outlet.Based on the model defects,a structural improvement scheme was proposed,and finally the two bogie traction ventilation systems met the design requirements.At the end of this paper,according to the operating environment of the plateau dual-power locomotive,different altitudes of 2100 m,3300m and 4000 m are selected,and the final improvement scheme of the two traction ventilation systems is simulated and analyzed at different altitudes,and the operating conditions of the traction ventilation system in different altitude areas are verified,providing theoretical support for future related research.