端板に加振力を受ける円筒構造の内部音響特性 : 音響特性に及ぼす筒長の影響(OS.11 板・シェルの構造解析)

概要

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This paper describes a coupling between a sound field in cylindrical enclosure and a vibration of circular end plates which are put on one side or both sides. Theoretical analysis is carried out for cylindrical length shift, whose influence for the coupling are expressed as distribution of the sound pressure level in a cylindrical cavity. In particular, with respect to natural frequencies and modes, the relations between the plate vibration and the sound field are studied in order to clarify the coupling behavior. The results show that the dominant mode shift in sound field is explained by distribution of the sound pressure level in the cylindrical cavity and the ratio of contribution of acoustic mode which forms the sound field.
一般社団法人日本機械学会の論文
2004-03-03