音圧レベル積分感度を用いた車室内騒音低減解析

概要

論文の詳細を見る
One of the authors has already, for the first time, formulated the sensitivity analysis for a coupled structural-acoustic system and applied the method in order to obtain the sensitivities at the specified frequencies, for example, peak frequency points for the sound pressure level, in a previous report. However, in reality, it is important to reduce the sound pressure level in a specified frequency range, and an efficient method for this is desired. Thus in this report we define the "sound pressure level integral" and the "sound pressure level integral sensitivity", and try to formulate them, by which the sound pressure level in the specified frequency range can be treated at the same time. Furthermore, by using these quantities and optimization analysis, we attempt to reduce the sound pressure level in a specified frequency range for vehicle interior noise, and demonstrate the validity of this method.
一般社団法人日本機械学会の論文
1993-12-25