有限要素法を用いた遮音シミュレーション

（垂直コア高さによる最適化検討）

抄録

We have proposed a simulation method for obtaining sound insulation performance with good accuracy using finite element method for elongated acoustic tubes that can be considered as one-dimensional. This is due to the separation of the sound pressures in front of the sound insulation wall between incident waves and reflected waves by Helmholtz's equation. In this study, we consider whether the "two-point microphone method", which is mainly used during experimental measurement, can be used for finite element simulation. In addition, by this method, the effect at low frequency by the core height in the vertical core which is one of the core shapes advantageous for sound insulation is confirmed and optimized.