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Summary & Details

Report on research: Research on mechanism of exterior-to-interior transmission of low-frequency wind noise

低周波空力騒音の車内への伝達メカニズムに関する研究

Delivery: Available on this site

Format: PDF

Price: Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880

Publication code: 20224201

Paper/Info type: Symposium Text

No.23-21

Pages: 1-12(Total 12 p)

Date of publication: Mar 2022

Publisher: JSAE

Language: Japanese

Event: JSAE Symposium 2021

Detailed Information

Category(J)	PPT資料 Translation
Category(E)	PPT slides
Author(J)	1) 宮澤真史
Author(E)	1) Masashi Miyazawa
Affiliation(J)	1) 株式会社　本田技術研究所
Affiliation(E)	1) Honda R&D Co. Ltd.
Abstract(J)	自動車の500Hz以下の低周波空力騒音の車内への伝達メカニズムを解析するために，基礎実験モデルを対象としてCFDと振動音響FEM解析による車内音解析を実施し，パネル共振周波数未満では強制加振，共振周波数以上ではパネル共振による車外から車内への伝達メカニズムを定性的に把握することができた． Translation
Abstract(E)	Transmission mechanism of vehicle wind noise is investigated by a combined simulation of a CFD and vibro-acoustics FEM analysis on a simple box model. Exterior wind noise is observed to be transmitted to interior by resonant vibrations above the natural frequency of boundary panel and by forced vibrations below the natural frequency.

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