[キーノート講演4]音響透過損失評価における総合損失係数の影響(音のダンピング設計2)

概要

論文の詳細を見る
The damping provided by energy dissipation in a glass pane or by energy transfer to surrounding structures appreciably affects the measured sound transmission loss. Therefore, the test installations of glass panes or windows on sound transmission measurements are strictly prescribed in ISO 140-1,3 for reproducible data acquisitions. For a laminated glass, sound transmission loss in the vicinity of the coincidence frequency is influenced by the internal loss factor exhibiting temperature characteristics that is estimated by damping test with a small sample. On the other hand, sound transmission loss of a solid glass depends strongly on boundary condition due to less internal damping. This paper describes that experimental results of the sound transmission loss of glass can be estimated from damping characteristics of the specimen using Cremer's theory.
一般社団法人日本機械学会の論文
2002-01-11