In recent years,with the rapid development of urban rail transit in our country,Metro vehicles have become the most common travel mode for urban population.The noise inside the vehicle is one of the impor-tant factors that affect the passenger experience.Therefore,the sound insulation of the vehicle is also a key tech-nical index to be considered.Tightness is an important performance of rail transit vehicles,which directly affects the sound insulation and heat insulation of vehicles,affects the comfort of passengers,and even causes leakage of vehicles when it is serious,and then affect the safety of vehicles.Based on the consideration of vehicle noise insu-lation and safety performance,this paper probes into the sealing structure of metro vehicles,and describes vari-ous sealing methods and detailed sealing effects applicable to metro vehicles,it is instructive to improve the seal-ing performance of metro vehicles.
Metro vehiclesSealing performanceSealing schemeSoundproof