Emission of Structural Noise of Tank Wagons Due to Induced Vibrations during Wagon Operation

Railway transport is considered relatively environmentally friendly in terms of energy consumption and air pollution, but it unfriendly noise pollution. Noise vibrations propagating to railroad surrounding areas are disturbing populations. In order minimize this noise, legislation regulations such as TSI NOI have been adopted research generated by railway has carried out. Such out also our team focused on experimental investigation wagons, particular case tank wagons. We simulated the structural eigenfrequencies both bogies tanks using FEM models find corresponding levels these vibrations. Theoretical results compared with measurements impact hammer visualization fields a digital acoustic camera Soundcam. Based simulation measurements, principal frequency domains fundamental sources were determined—rolling (40–63 Hz), (200–1000 bogie (400–1600 wheel (800–10,000 Hz). Measurements line under real operational conditions at two train speeds out, too, see actual external levels.