120 3個のマイクロフォンを用いた音響特性計測法の開発 : エンジン吸気配管系への適用(環境騒音・振動の予測と制御(II))(振動・騒音制御技術)

概要

論文の詳細を見る
A measuring method for the transfer matrix parameters of acoustic systems by using 3-microphones is described in this report. The acoustic characteristics of engine intake systems are usually analyzed by the transfer matrix method. By using the 3-microphones method, the matrix parameters of unknown systems can be determined experimentally. The matrix parameters of the air cleaner were measured and used to predict the acoustic characteristics of the intake systems. The comparisons were made between predicting results using the matrix parameters and directly measuring results with mean flow. Agreement is fairly good and it suggests that this method can be used to evaluate the acoustic characteristics of intake systems with a low flow velocity.
一般社団法人日本機械学会の論文
2001-07-09