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http://dx.doi.org/10.5050/KSNVN.2003.13.2.126

An Experimental Analysis of the Contributions to the Radiated Noise due to Panel Vibration of a Rotational Machine  

국형석 (국민대학교 자동차전문대학원)
허승진 (국민대학교 자동차전문대학원)
고강호 (국민대학교 자동차전문대학원)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.13, no.2, 2003 , pp. 126-131 More about this Journal
Abstract
This study is concerned with the reduction of noise radiation by an industrial fan unit. First, spectral decomposition method is used to decompose the spectrogram obtained in experiments into source function and noise transfer function, and then major noise generation sources are investigated. Among the noise sources involved in the fan unit. this article is focused on the noise source due to vibration of panels of the unit housing. It is shown here that noise radiation associated with the panel vibration can be as significant in some frequency ranges as that associated with other noise sources such as aeroacoustic fan noise.
Keywords
Spectral Decomposition Method; Panel Contribution Analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 /
[ Munjal, M. L. ] / Acorstics of Ducts and Mufflers with Application to Exhaust and Ventilation System Design
2 Aeroacoustic Source Characterization Method with Applications to Flow-excited Cavity Pressure Fluctuations and Computer Cooling Fan Noise /
[ Bezemek, J. D. ] / MS Thesis, Purdue University
3 케이싱을 고려한 홴의 유동 및 소음해석 프로그램 응용 /
[ 이덕주;전완호;정기훈 ] / 한국소음진동공학회논문집   과학기술학회마을