FA2023a

The following audio examples accompany the publication

J. Theyssen, A. Pieringer, “Towards auralization of pass-by noise from railway wheels: sensitivity of the lateral contact position”, presented at the 10th Convention of the European Acoustics Association.

The following examples are simulations of the sound pressure at a stationary, track-side position during the pass-by of a railway wheel. The pass-by pressure is evaluated for four different lateral contact positions between the wheel and the rail.

The following audio signals represent the sound pressure at a stationary, track-side position for different lateral contact positions of the wheel on the rail. Visit the publication for details.

The article investigates the effect of removing individual modal contributions to this sound pressure. The audio signals below contain the remaining sound pressure at a stationary, track-side after removing a number of modes. In each step, the mode with the least effect on the total sound pressure level is removed.

Finally, the pass-by signal from eight consecutive wheels is simulated by adding their pressure signals at the receiver position. For the first example, all wheels radiate identical noise signals. In the second example, the lateral contact position is varied, approximating the hunting motion of a bogie.