実験および数値計算を用いた高速回転体の騒音解析および低騒音化

概要

論文の詳細を見る
The flow-induced noise generated by high-speed rotating machine components, such as a polygon mirror of a laser printer, is analysed both in experiments using sound intensity measurement with two microphones and in finite-element flow analyses. The results of sound intensity measurement reveal the effect of beveling on the edge of the mirror in order to reduce the noise. The numerical prediction of the sound field around the mirror has been carried out. The fluid flow around the mirror is modeled mathematically and analysed using the two-dimensional Navier-Stokes equations and the finite-element method. The predictions based on the finite-element analysis show good agreement with experimental results, promising an effective tool in designing the shape of high-speed rotating machine components for noise reduction.
一般社団法人日本機械学会の論文
1992-05-25