感度解析を用いた構造物の振動放射音低減手法の開発 : 第2報観測点騒音及び音響出力の定量的低減手法の開発

概要

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Noise generated by engine block vibration has a great influence on engine noise. Therefore, in our first report we investigated the basis of BEM and presented the sensitivity coefficients of the generated noise at measurement points in relation to design variables. In addition, we developed techniques for qualitatively reducing generated noise using this sensitivity analysis. In this report, the sensitivity coefficients of acoustic power in relation to design variables is presented. We further developed techniques for quantitatively reducing generated noise at the measurement points using a combination of sensitivity and optimum analyses. In addition, we also developed techniques for reducing acoustic power quantitativly using this combined analysis.
一般社団法人日本機械学会の論文
1988-04-25