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Study of analysis method of interior noise in railway cars by means of ray tracing method
2019
Mechanical Engineering Journal
We have studied the analysis method of interior noise in railway cars by means of a ray tracing method. Firstly, by using a point source as input, sound distribution inside a car was analysed and compared with the measurement result obtained by a loud speaker test. It was found that the analysis result of sound decay along the longitudinal direction of the car did not always match the measurement result. It is possibly because the wave character of the sound cannot be strictly simulated by the
doi:10.1299/mej.18-00449
fatcat:uqmoycig2zdrfjpq7faxzshlyi