We developed an SEA (Statistical Energy Analysis) model of a whole railway carbody shell by using CLFs (Coupling Loss Factors) calculated from partial FEM model of it. By comparing with the hammering test results of the actual carbody shell, it was revealed that under 160Hz band all the CLFs between each subsystem should be incorporated in the SEA model, and the modified analysis results matched the experimental ones by less than 5 dB difference. Then, in order to simulate the vibration distribution of the rolling stock with an engine under the floor body, input power of the operational engine was calculated from measured acceleration data of both sides of the engine rubber mount. Calculated input power was applied to the SEA model of the carbody shell to which upper floor subsystems were added, and it was confirmed that the analysis results matched the experimental ones within 5 to 10dB difference.
