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논문 기본 정보

자료유형
학술저널
저자정보
(Kookmin University) (Mando)
저널정보
한국소음진동공학회 한국소음진동공학회논문집 한국소음진동공학회논문집 제27권 제3호(통권 제235호)
발행연도
수록면
268 - 277 (10page)
DOI
10.5050/KSNVE.2017.27.3.268

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초록· 키워드

The paper presents the dynamic model of a balance shaft module for an in-line three cylinders engine that has each cylinder"s phase interval of 120 deg. The balance shaft module (in addition to counter weights on crank arms) plays a key role to compensate for the engine vibrations caused by the pistons, crank arms and connecting rods which rotate or reciprocate in the engine. For three cylinders engines, the vibrations are attributed to pitching and yawing moments because all lateral forces (horizontal and vertical) cancel each other out. Therefore, the balance shaft is designed to compensate for those moments in three cylinders engines. First, the paper predicts the excitation forces from each cylinder and then assembles them to predict the total excitation forces and moments. Prediction shows that the resultant forces are null and the maximum amplitude of the pitching moment is 1225 N-m at 3000 r/min. Installation of the counter weights to the crank arms and the balance shaft (with out-of-phase unbalance) to the engine removes the major vibration component arising due to the primary pitching moment. Additional two balance shafts (with lightweight unbalance) to the engine are suggested to remove the minor vibration component arising due to the secondary pitching moment. The model predictions show that the no vibration occurs due to the engine pitching moment and the pitching moment reduction per added unbalance are very high, thus implying the effectiveness of the suggested balance shaft module.
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목차

  1. ABSTRACT
  2. 1. 서론
  3. 2. 주가진원의 가진력 해석
  4. 3. 평형추 모델링 및 해석
  5. 4. 밸런스샤프트 모델링 및 해석
  6. 5. 잔류 피칭모멘트 상쇄를 위한 해석 모델
  7. 6. 결론
  8. Reference

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