CAJ | 학술논문

防爆发动机剧烈的振动对车辆使用寿命影响较大，针对上述问题，以WC5 E型防爆胶轮车发动机为研究对象，建立其六自由度力学模型，研究发动机各阶振动频率分布及振动耦合情况，利用Matlab优化工具箱对阻尼元件刚度参数进行优化，实现系统固有频率的合理配置和振动解耦程度的提高，最后对原车及解耦优化后车辆进行动态测试试验，结果显示优化后的阻尼系统大大的衰减了发动机振动向车架的传递，起到了良好的缓冲效果。
방폭발동궤극렬적진동대차량사용수명영향교대，침대상술문제，이WC5 E형방폭효륜차발동궤위연구대상，건립기륙자유도역학모형，연구발동궤각계진동빈솔분포급진동우합정황，이용Matlab우화공구상대조니원건강도삼수진행우화，실현계통고유빈솔적합리배치화진동해우정도적제고，최후대원차급해우우화후차량진행동태측시시험，결과현시우화후적조니계통대대적쇠감료발동궤진동향차가적전체，기도료량호적완충효과。
Severe engine vibration is proved to have larger impact on the life of vehicle. According to this problem, using the WC5E type explosion-proof-vehicle engine as the research object,the six degrees of freedom mechanical model was set up,and the engine's vibration frequency distribution and vibration coupling case were analyzed. Mat-lab optimization toolbox was applied to optimize damping element stiffness parameters so as to realize reasonable al-location of system natural frequency and improve the vibration decoupling rate. At last,dynamic testing experiment was made on both the original car and decoupling-optimized vehicle,the results show that the optimized damping system greatly reduce the vibration transmission from the engine to the frame and play a good vibration buffer effect.