듀얼 배기시스템의 합류형상 변화에 따른 고유진동 특성에 관한 연구
A Study on the Natural Vibration Characteristics According to the Change of Confluence Geometry of the Dual Exhaust System
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초록
High-performance vehicles with V6 or higher are designed with a dual exhaust system to satisfy both performance and quietness at the same time, and have a confluence geometry for the purpose of stably maintaining the back pressure inside the pipe. The exhaust system generates noise and vibration under the influence of the rotating engine. In particular, in a state such as idling, vibration occurs in a certain frequency range, which may affect the natural vibration of the exhaust system. Therefore, in this study, the optimal shape is proposed by comparing the ignition frequency calculated based on the vibration measurement result in the idle state and the numerical analysis result.
Abstract
High-performance vehicles with V6 or higher are designed with a dual exhaust system to satisfy both performance and quietness at the same time, and have a confluence geometry for the purpose of stably maintaining the back pressure inside the pipe. The exhaust system generates noise and vibration under the influence of the rotating engine. In particular, in a state such as idling, vibration occurs in a certain frequency range, which may affect the natural vibration of the exhaust system. Therefore, in this study, the optimal shape is proposed by comparing the ignition frequency calculated based on the vibration measurement result in the idle state and the numerical analysis result.
참고문헌 (7)
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- W. B. Shangguan, "Design Method of Automotive Powertrain Mounting System based on Vibration and Noise Limitations of Vehicle Level", Mechanical Systems and Signal Processing, 76–77(8), pp.692~694 (2016)
- 민세훈, "슬라이딩 케이지 형상에 따른 상용 A-IMS 모듈의 응력분포 특성", 한국기계기술학회지, 19(1), pp.141~147 (2017), 한국기계기술학회[DOI]