Indentification of the generation of track-bogie-induced structure-borne sound in trains

초록

Structure-borne sound in train interiors is a nuisance to passengers and drivers, and it appears mostly at low frequencies. This type of noise source is constituted by wheel/rail contact, with vibrations transmitted through the bogie, through connection points to the carbody, and subsequently radiated as interior noise by floors, walls, and windows. This study presents a calculation model which describes and enables predictions generated vertical wheel and bogie vibrations which cause interior structure-borne sound in trains. The measured vibration level is compared to calculated values. The interior noise of a train on a slab track line is analyzed.