3302 サーバの低騒音化設計のための騒音予測システム(OS4-1 デジタルエンジニアリングI,OS4 デジタルエンジニアリング)

概要

論文の詳細を見る
An acoustic noise prediction system has been developed to reduce acoustic noise of electric equipment such as servers. The system can accurately predict the noise in frequency-domain without an actual prototype by coupling two acoustic simulation methods, which are: (1) a boundary elements method (BEM) for low-frequency prediction, and (2) a combined method of both statistical energy analysis (SEA) and geometrical acoustics for high-frequency prediction. The prediction accuracy in high-frequency has been improved by considering higher-order diffractions of an exterior space. We show that our system predicts acoustic pressure of the equipment precisely enough and leads to a good coincidence with actual measured values.
一般社団法人日本機械学会の論文
2010-10-27