Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)
- Volume 2 Issue 2
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- Pages.24-32
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- 1994
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- 1225-6382(pISSN)
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- 2234-0149(eISSN)
An Experimental Study on the Vibration Reduction of the 4WD Vehicle by the Engine Mounting Conditions
엔진장착조건에 따른 4WD 자동차의 진동저감에 대한 실험적 연구
Abstract
This paper is the experimental study on the vibration reduction of the 4WD vehicle through the change of the engine mounting conditions.(4 stroke diesel engine) The engine mounting conditions are changed to reduce the transmitted vibrations of the engine to the frame at the idle speed. Under the assumption that the Powertrain(Engine Transmission and Transfer Case) is a rigid body, the inertia properties of the powertrain are obtained by experimental modal analysis. And then the changed mounting conditions are studied by the decoupled vibration theory and analytical model of six degree of freedom. Though the mounting conditions are changed to improve the vibration isolation at idle speed, the vibration and the interior noise of the vehicle are reduced significantly at driving speed as well as idle speed. From the indirect endurance test of the front engine mounts, the changed mounting conditions are desirable to endurance as well as vibration reduction of the 4WD vehicle.
Keywords
- Experimental Modal Analysis;
- 4WD(4 Wheel Drive);
- Engine Mounting Condition;
- Vibration Reduction;
- Endurance Test
- 실험적 모우드해석;
- 전륜구동(全輪驅動);
- 엔진장착조건;
- 진동저감;
- 내구시험;