某柴油机平衡轴系统噪音问题分析
Analysis of Noise Issues in Balance Shaft System of a Certain Diesel Engine
卢艳坤 1张思君 2张良超 1雷芝 1朱嘉懿 1杨小欢1
作者信息
- 1. 上汽集团商用车技术中心,上海 200438
- 2. 华人运通控股(上海)有限公司,上海 200438
- 折叠
摘要
本文通过对异响发动机零件的交叉验证,最先锁定导致发动机平衡轴异响的相关零件平衡轴和滚针轴承.146/160 阶次啸叫跟随滚针轴承,212 阶次啸叫跟随平衡轴平衡轴.然后通过鱼骨图分析方法和异响发动机、非异响发动机零件的差异对比找出平衡轴系统鬼阶啸叫的根本原因,平衡轴滚针轴颈波纹度差是引起 174/212 阶次啸叫的主要原因;滚针波纹度差引起 146/160 阶次啸叫的主要原因.最后提出解决措施即优化零件波纹度,优化后零件通过试验验证,平衡轴系统鬼阶啸叫消失,问题解决.
Abstract
Through cross validation of engine components with abnormal noise,this article first identifies the relevant components that cause the engine balance shaft abnormal noise,including the balance shaft and needle roller bearings.The 146/160 order howling follows the needle roller bearing,and the 212 order howling follows the balance shaft balance shaft.Then,by using the fishbone diagram analysis method and comparing the differences between noisy and non noisy engine parts,the fundamental reason for the ghostly howling of the balance shaft system was identified.The difference in the waviness of the balance shaft needle roller neck was the main cause of the 174/212 order howling;The main reason for the 146/160 order whistling caused by the difference in needle roller ripple.Finally,a solution was proposed,which is to optimize the waviness of the parts.After optimization,the parts were verified through experiments,and the ghostly howling of the balance shaft system disappeared.The problem was solved.
关键词
平衡轴/鬼阶啸叫/滚针轴承/波纹度Key words
Balance axis/Ghost steps howl/Needle roller bearings/Waviness引用本文复制引用
出版年
2024
NETL
NSTL
万方数据