The Characteristic Analysis Of Rail Vehicle AIR Spring System Based On The Software Of AMESim

The imperative of speeding up help railway transportation remain a big player in diversity society. However, speeding up in railway transportation will likely come in trickles as opposed to waves and it can exist quite a lot of problems and cause technical difficulties. When the vehicle runs on the track, it will cause the complicated vibration phenomenon and with speed boost, the vibration which can damage the running steadiness and reduce the passenger comfort and securitywill increase.In the last few years, promoting the railway speed is the6th, under the guarantee of these comfortable premise, promoting the railway speed ask for the excellent stability. The reasonable design of suspension system is an important method.It is certificate in the theory and fact that vehicle first suspension ensures the stability and the second suspension ensures thesatisfaction. Accompany with the higher speed, traditional steel spring as a important component of the second suspension system has dropped behind. The air spring has a low self-vibration frequency, an adjusted stiffness, a controlled damping, agoodability to reduce vibration and noiseand along service life. So it iswidely use on the rail bound vehiclebut air spring possess some complicated property on the other hand. As the key component of the second suspension system, building a appropriate simulation model is important to improve dynamics performance of bogie.LMS Imagine. Lab AMESim is a kind of complicated system simulation software. Established the air spring model by using the AMESim software is convenient, accuracy and highly modularization. It is standard wareroom provide component physical model all based on mathematics model, Made use of these based model can describe all the function of system.Fast simulate is the target.It is practical use of this simulations model.Studying the influence of air spring parameter is the section of use,on the other hand it can be used for unit-simulation with other software.This paper presents a method, that is establish the air spring model by using the AMESim software including diaphragm, top plate, orifice, auxiliary spring, differential pressure valve and height control valve. Besides, this simulation model take air press, carbody and bogie displacement into considerate.Based on this model, this paper describe the way to set parameter in detail. Impress on this way, different type of air spring can be created. Then testing the dynamic stiffness, static stiffness, differential pressure valve behavior and height control valve behavior referenced on standards straight. Compared with the real date produce a conclusion that simulation date in complete accord with real when simulate model possess right parameter.Next, analysis orifice area, auxiliary spring volume, initial press’s effect on dynamic stiffness, static stiffness. In the end, Made use of the AMESim simulation mode, draught air spring press-load curve, static stiffness-load curve and air spring volume-load curvein a wide load limit. This three curve certificate the AMESim model is a accurate reliability simulation model.