A Study of the Noise Reflection Effect of an Alternator in a 13-liter Turbo-intercooler Diesel Engine

13 리터급 터보.인터쿨러 디젤 엔진의 얼터네이터 소음 반사 효과에 관한 연구

  • 최성배 (대구카톨릭대학교 기계자동차동차공학부)
  • Published : 2003.05.01


Engine noise consists of the noise radiated from an engine structure and noises from engine ancillaries such as a turbocharger fuel injection system, and alternator. The noise of these ancillaries might be incorrectly evaluated in the aspect of the noise contribution to engine noise because the noise reflection effect of their neighbor engine structure is easily ignored. Consequently, noise source identification should be misled. This study investigates the fact that the engine structure located around an alternator reflects alternator noise, and the reflected noise acts as another alternator noise source in a heavy-duty diesel engine. The result shows that the alternator noise can be correctly estimated in engine noise by properly including the noise reflection effect.


  1. 한국음향학회 학술발표대회 논문집 v.19 no.2 대형 디젤 엔진 터보 차져 고주파 소음에 관한 연구 최성배;정용진;여승동
  2. 2002 JSAE Annual Congress Proceedings no.69-02 Investigation on Whine noise induced by turbine blades for a medium-duty diesel engine J. M. Jin;S.B. Choi;C.W. Lee.;D.H. Bae
  3. Noise control engineering journal v.43 no.2 Aerodynamically-induced noise in an automotive alternator D. M. Frederik;G. C. Lauchle
  4. Transactions-Institute of Electrical Engineers of Japan v.120-D no.6 自動車用發電機における高速回轉時の電磁騷音に關する檢討 嵯峨宣彦;中村太郞;高橋義雄
  5. 한국진동소음공학회지 v.7 no.4 차량용 교류발전기의 전자기소음 특성에 관한 연구 차항병;장경환
  6. 한국진동소음공학회지 v.8 no.1 실험적 해석을 통한 차량용 교류발전기 소음 저감 특성 연구 김대원;신중호
  7. Transactions- Institute of electrical engineers of Japan v.120 no.6 Study on electromagnetic noise of alternator at high-speed rotation N.Saga;T. Nakamura;Y. Takahashi
  8. SAE 972042 Meeting future demands for quieter commercial powertrain systems C. V. Beidl;A. Rust
  9. JSAE review v.23 no.3 Noise and vibration reduction of newly developed 3.0ℓ direct injection diesel engine S. Usuda;M. Otsuka;M. Nagata
  10. KS B 6004, 내연기관의 소음 측정 방법 한국공업규격
  11. Acoustic noise measurements J.R. Russel;K. Zaveri
  12. Fundamentals of acoustics(4th Ed.) L. E. Kinsler;A. R. Frey;A. B. Coppens;J. V. Sanders
  13. Fundamentals of noise and vibration analysis for engineers M.P. Norton