Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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A Study on the Noise Property and Its Reduction of the FCEV Blower

FCEV 블로워의 소음특성과 개선방향에 관한 연구

  • Published : 2008.05.20
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Abstract

Centrifugal turbo blower is requested highly efficiency and low noise in FCEV, but the noise generated by this machine causes of the most serious problems in the NVH performance. In general, centrifugal turbo blower is dominated by mechanical noise and aerodynamic noise. Mechanical noise is generated by rotation of the bearing, misalignment and unbalance. And aerodynamic noise is generated by the strong intersection between the flow discharged from the impeller and the cut-off in the casing. The first object of this study is to comprehend a noise property of the blower through the noise test. And, second object is to bring up the method that can reduce blower noise.

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References

  1. Cho, J.-J. and Cho, Y.-S., 1997, 'Experimental Investigations on the Noise and Bibration Sources of Electrical Motor', Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 7, No. 1, pp. 37-42
  2. Jeon, W.-H., 2001, 'A Numerical Study on the Acoustic Characteristics of Centrifugal Impeller with Small Added Vane', KFMA, Vol. 4, No. 1, pp 22-29
  3. Jeon, W.-H., 2001, 'Noise Source and Noise Control of the HVAC System', KFMA, Vol. 4, No. 3, pp. 119-126
  4. Koopmann, G. H., Fox, D. J. and Neise, W., 1998, 'Active Source Cancellation of the Blade Tone Fundamental and Harmonics in Centrifugal Fans', Journal of Sound and Vibration, Vol. 126, No. 2, pp. 209-220 https://doi.org/10.1016/0022-460X(88)90236-2
  5. Jeon, W.-H. and Lee, D.-J., 1998, 'An Analysis of the Acoustic Source and Radiation Acoustic Field of Centrifugal Fans', KFMA, '98 Fluid Machinery Research and Development Conference, pp. 97-104
  6. Seo, S. H., Kwon, H. K., Lee, C. H., Park, Y. S., 2006, 'Nise Reduction of Fuel Cell Vehicle', KSAE Annual Autumn Conference, pp. 1695-1700
  7. KS B 6361, 2002, 'Method of A-weighted Sound Pressure Level Measurement for Fans, Blowers and Compressors'