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http://dx.doi.org/10.5050/KSNVN.2006.16.5.485

Design Optimization by the Correlation between the Design Parameter and the Sound Quality of Small Turbo-fan  

Kim, Hooi-Joong (인하대학교 산업과학기술연구소)
Jung, Young-Gyu (인하대학교 기계공학과)
Lee, Jung-Soo (인하대학교 기계공학과)
Lee, Seung-Bae (인하대학교)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.16, no.5, 2006 , pp. 485-494 More about this Journal
Abstract
The state-of-the-art of low-noise fan design usually includes the consideration of optimal sound level and sound quality. The influential design parameters of the noise level by the centrifugal fan were selected based on the preliminary test. The centrifugal fans were designed according to the experiment plan method by specifying the selected design parameters. The experiment with these machined mock-up's of centrifugal impellers suggested the major design parameters among many, having impacts upon the indices of sound quality (e.g. loudness, sharpness, roughness and fluctuation strength) at the same operation point. With the response surface method, the major design parameters selected thereafter were analyzed to estimate each contribution upon the sound quality of the centrifugal fan, and the optimal values were drawn by the consideration of the sound quality levels and their regression equations. In addition, the validity of the regression equations was numerically verified by means of the coefficient of determination. Furthermore, the mechanism by which the centrifugal fan impeller influences the determinants of its sound quality was suggested.
Keywords
Loudness; Roughness; Sharpness; Fluctuation Strength; Sound Quality; Response Surface;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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