- Volume 8 Issue 5
The powertrain is an important factor for the interior and exterior noise behavior of the vehicle Thus, the noise vibration and harshness(NVH) behavior of an engine is becoming a major target of the powertrain development. This paper describes the analyses with the aim to reduce the vibration and noise of an advanced inline 4-cylinder diesel engine block by use of CAE methods. The characteristics of an engine block as a main excitation source of car interior noise is studied. Particularly, The effect of balance shaft to reduce the 2nd order engine excitation force is calculated by forced vibration and radiated noise analysis. The engine exitation forces are obtained under real operating conditions. It is shown that the reduction of vibration and noise level by adapting blancing shaft is well predicted and rediated noise is directly related to the surface velocity of engine block.
- SAE951294 NVH Optimization of an In-Line 4-Cylinder Powertrain J. Querengasser, J. Meyer, J. Wolschendorf,;J. Nethl
- SAE 951283. Development of Vehicle Sound Quality - Targets and Methods Matthlass Schnelder, Michaei Wihelm;Norbert Alt
- SAE 870978 Engine Noise Practicalities and Prediction, Part 2- Finite Element Analysis R. J. Tyrrell;D. M. Croker
- SAE 911073 Noise and Vibration Refinement of the Ford 3.8 Liter Powertrain Michael F. Albright;Douglas F. Staffeld
- SAE 972039 Development of an Engine System Model For Predicting Structural Vibration and Radiated Noise of the Running Engine Shung H. Sung, Donald J. Nefske, (etc)
- SAE International Advanced Engine Technology Heinz Heisler
- KSAE 학술강연 초록집 Balance Shaft적용에 따른 엔진블럭의 강제진동 해석 박주상, 손교은
- Technical Review '97 of DMC Intake Orifice Noise Reduction for an Inline 6-Cylinder Engine With Variable Intake System Ernst Linder
- MSC/NASTRAN User's Manual Version 68
- COMET/Acoustic User's Manual Version 3.1.
- 사단법인 한국자동차공학회 자동차 기술핸드북 - 기초 김웅서
- 사단법인 한국자동차공학회 자동차 기술핸드북 - 설계 김웅서