CAJ | 학술논문

动力传动系统弯振与扭振是引起诸多后驱汽车车内轰鸣声的共性问题。某前置后驱柴油机汽车在全油门加速工况时，动力传动系统的多个耦合弯振频率及其3阶扭振造成车内多个转速下的噪声峰值。通过进行动力传动系统扭振计算分析与弯扭振试验研究，采用减小动力传动系统激励源与改变该系统弯扭刚度的方法，解决了由于动力传动系统弯扭振动特性引发的NVH问题。
동력전동계통만진여뉴진시인기제다후구기차차내굉명성적공성문제。모전치후구시유궤기차재전유문가속공황시，동력전동계통적다개우합만진빈솔급기3계뉴진조성차내다개전속하적조성봉치。통과진행동력전동계통뉴진계산분석여만뉴진시험연구，채용감소동력전동계통격려원여개변해계통만뉴강도적방법，해결료유우동력전동계통만뉴진동특성인발적NVH문제。
Flexural vibration and torisional vibration of driveline have been found the common source of booming noise in rear wheel drive vehicles. On a front-engine and rear-wheel drive diesel vehicle, multiple coupling flexural vibration frequency and its 3-order torisional vibration of driveline cause many noise peak values at different speed in WOT operational condition. By bending and torsion modal analysis and testing of driveline, we use a method to reduce driveline excitation source and change flexural vibration stiffness, the NVH problem which is caused by flexural vibration characteristic of the driveline is resolved.