折紙構造を用いた遮音シェードの検討

抄録

The purpose of this research is to develop a sound-reducing shade that is lightweight, foldable, and reduces the transmission of sound to the outside with relatively cheap materials. Sound pressure reduction in the high frequency range can be achieved by using sound-absorbing material in some areas, and tubular structures are used for the shade's walls, with the aim of using an origami structure to deal mainly with the frequency range below around 500 Hz. The effect of reducing sound pressure was confirmed by FEM simulation, and the reasons for this were considered by analyzing the sound pressure levels in fine details.