相反定理および伝達関数補間を用いた移動音源からの騒音予測法(機械力学,計測,自動制御)

概要

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In this paper, noise from a moving source on the road with sound insulation wall is studied. The noise diffracts on the upper edge of the wall and arrives at the evaluation point Q. Firstly, the noise source is placed at point Q, and the sound pressures are measured at point A and B on a line L which is regarded as the moving track on road. From the measured sound pressures, the transfer functions between the noise source at point Q and the point A and B are determined. The method to interpolate the transfer function at an arbitrary point on the line L between A and B is proposed in this study. Using the reciprocity theorem and the interpolated transfer function, it is able to predict the noise arrived at the evaluation point S from the moving source on the line L.
一般社団法人日本機械学会の論文
2007-04-25