開領域を含む構造体内の音響特性の数値解析 : 自動車車室モデルへの適用

概要

論文の詳細を見る
For the purpose of niose reduction in the passenger compartment of a vehicle, it is important to grasp its acoustic characteristics in the design stage. In the present paper, the acoustic Finite Element Method and the Boundary Element Method are used to analyze the acoustic characteristics of the passenger compartment, and they are compared with the experimental results. For analysis by the FEM, hexahedral elements are used ; and by the BEM, two different methods where the sound pressure within the element is assumed to be constant or to be represented by linear function are attempted. The problem with open boundaries is dealt with also, as an example of the passenger compartment of a car in the case where the window is opened. It is concluded that both the analytical methods are effective for such problems, and they show good agreements with the experimental results.
社団法人日本機械学会の論文
1985-12-25