Noise Reduction of the Engine Cooling Fan Used in Large Bus

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概要

• 論文の詳細を見る

• Acoustic considerations of axial flow fans become imperative due to regulations and the ubiquitous call for environment-friendly products. This paper suggests a noise reduction method for the engine cooling fan. This engineering model has been developed for the prediction of the noise spectrum of an axial flow fan. The radiated acoustic pressure is expressed as the discrete frequency noise peaks at the BPF and its harmonics and line spectrum at the broad band by noise generation mechanisms. This paper shows a comparison of the measured and calculated noise spectra of the fan for the validation of the noise prediction program. This paper also presents the characteristics of fan noise due to modify the design parameters. Accordingly, design parameter values for noise reduction of the fan were obtained.

• 社団法人日本機械学会の論文
• 2004-03-15

著者

• LEE Chang-Hyo

  Department of Physics Hanyang University

• Oh J‐e

  Hanyang Univ. Ansan Kor

• Lee Choong-hwi

  Department Of Automotive Engineering Graduate School Hanyang University

• Lee Y‐y

  Hanyang Univ. Seoul Kor

• Oh Jae-eung

  Division Of Mechanical Engineering Hanyang University

• Oh Jae-eung

  School Of Mechanical Engineering Hanyang University

• JOE Yong-Goo

  Dept. of Automotive Engineering, Hanyang University

• LEE You-Yub

  Dept. of Automotive Engineering, Hanyang University

• LEE Choong-Hwi

  Dept. of Automotive Engineering, Hanyang University

• SIM Hyoun-Jin

  Dept. of Automotive Engineering, Hanyang University

• JOE Yong-Goo

  Department of Automotive Engineering, Graduate School, Hanyang University

• OH Jae-Eung

  Han Yang University

• Lee You

  Department Of Automotive Engineering Graduate School Hanyang University

• Oh Jae-eung

  School Of Electrical And Computer Engineering Hanyang University

• Joe Yong-goo

  Department Of Automotive Engineering Graduate School Hanyang University

• Sim Hyoun-jin

  Dept. Of Automotive Engineering Hanyang University

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