Prediction of radiation noise in the surrounding area of high-speed trains passing airport underground stations
To study the noise level and distribution around high-speed railway stations and ground transporta-tion center(GTC),a structure-cavity subsystem model was established by using statistical energy analysis to analyze the noise levels of the road area around the GTC when high-speed trains pass through the airport underground station in three forms at different speeds.The results show that when two high-speed trains meet at the end with larger speed,there is larger noise in the exit area of the air shaft of the surrounding road surface,which is due to the existence of larger noise values in the air shaft at the meeting end of the trains,and the main noise frequency bands are further analyzed.By laying different thicknesses of sound-absorbing materials at the wall surface of the underground station's air shaft,the noise value of the surrounding area is effectively reduced.In this study,reference suggestions can be provided for improving the surrounding noise environment when high-speed trains pass through airport underground stations at high speeds.
AcousticsHigh-speed trainsStatistical energy analysisNoise prediction
万方数据
维普
