Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Simulation-based Optimum Allocation of a Resonator for Reducing the Blow Noise of a Turbocharger in a Diesel Engine

디젤 엔진에서의 터보 차저 Blow 소음 저감 위한 시뮬레이션 기반 공명기 위치 최적화

  • Kang, Yong-Hun (Department of Mechanical Engineering, Graduate School of Hanyang University) ;
  • Choi, Dong-Hoon (The Center of Innovative Design Optimization Technology, Hanyang University)
  • 강용헌 (한양대학교 기계공학과 대학원) ;
  • 최동훈 (한양대학교 최적설계신기술연구센터)
  • Received : 2009.08.04
  • Accepted : 2009.09.11
  • Published : 2010.03.01
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Abstract

A diesel engine is equipped with a turbocharger for providing more power at a low engine speed region by supplying charge air to combustion chambers. The turbocharger makes it possible to satisfy stringent emission regulations and customers' demand of enjoying the fun to drive by increasing engine performance. However, the turbocharger has the disadvantage of making BPF(Blade Passing Frequency), hissing, surge, whistle, and blow noises. Among them, reducing the blow noise, a narrow-band noise(a general range : 1800~2000Hz), is possible by using a resonator that controls the narrow frequency band governing the resonance in the intake system. In this study, the optimum location of the resonator is found by employing Boost as a CAE(Computer Aided Engineering) tool and is confirmed by experiments of an engine dynamo test and a real vehicle test.

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References

  1. J. S. Choi and D. K. Koh, "An Investigation of Flow Characteristics of Radial Gas Turbine for Turbocharger under Unsteady Flow," Transactions of KSAE, Vol.2, No.2, pp.42-48, 1994.
  2. Y. B. LEE, D. J. Park and C. H. Kim, "A Study on the Characteristics of the Oil-free Turbocharger Supported by Air Foil Bearing," Spring Conference Proceedings, KSAE, pp.321-329, 2006.
  3. J. A. Calvo, V. Diaz and J. L. San Roman, "Controlling the Turbocharger Whistling Noise in Diesel Engines," International Journal Vehicle Noise and Vibration, Vol.2, No.1, pp.17-28, 2006. https://doi.org/10.1504/IJVNV.2006.008524
  4. E. P. Trochon, "A New Type of Silencers for Turbocharger Noise Control," SAE 2001-01- 1436, 2001.
  5. J. E. Oh, K. H. Hann and Y. Y. Lee, "Optimum Specification and Location of the Helmholtz Resonator for the Intake System in a Vehicle," Transactions of KSAE, Vol.7, No.2, pp.210- 216, 1999.