CAJ | 학술논문

某型号发动机在加速过程中噪声大并伴随明显异响，经过测试分析。异响主要是由于发动机箱体在转速5000r／min左右时产生强烈共振引起。通过添加合箱螺钉的办法提高箱体模态，并调整平衡轴平衡率来降低离心力激励，从而降低了发动机的振劝和噪声，消除了异响。
모형호발동궤재가속과정중조성대병반수명현이향，경과측시분석。이향주요시유우발동궤상체재전속5000r／min좌우시산생강렬공진인기。통과첨가합상라정적판법제고상체모태，병조정평형축평형솔래강저리심력격려，종이강저료발동궤적진권화조성，소제료이향。
This paper introduces the analysis on the vibrations and abnormal sounds generated by the resonance of motorcycle engine during the acceleration at 5 000 r/min. The solution is to decrease the centrifugal force via adjusting the balance level of balance shaft and improve the modal of cylinder block by increasing the screws.