647 音響系における動吸振器の設計
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概要
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Dynamic dampers are often used for suppressing vibrations of machines and structures. In this research, application of dynamic dampers to suppress sounds in a closed space such as cars and rooms is considered. For this purpose, effects of a dynamic damper composed of mass, spring and damping elements attached to a uniform sound tube is discussed. It is found that dynamic dampers can be used for suppressing sounds when the value of mass can be chosen small enough, contrary to the usual use of dynamic dampers. An iteration method for determining the optimal values of spring stiffness and damping coefficient is proposed.
- 一般社団法人日本機械学会の論文
- 2011-09-05
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関連論文
- 854 音振動連成系における動吸振器の設計(OS5-3 減衰・動吸振器・動的挙動,OS5 振動解析と制振)
- 647 音響系における動吸振器の設計
- 647 音響系における動吸振器の設計(吸音・防音と音響計測,OS-5 サイレント工学,総合テーマ:「部門創設25周年、新たなる躍動」)