桑塔纳轿车等速万向传动中间轴典型机械特性研究  

STUDY ON MECHANICAL CHARACTERISTICS OF RECYCLED CONSTANT VELOCITY DRIVESHAFT FOR SANTNA AUTOMOBILE

作　　者：左力[1] 卢曦[1] 

机构地区：[1]上海理工大学机械工程学院,上海200093

出　　处：《机械强度》2015年第4期613-617,共5页Journal of Mechanical Strength

基　　金：国家自然科学基金资助项目(51175346);上海市科委基础研究重点基金资助项目(12JC1407000);上海市科技攻关基金资助项目(14521100500);上海汽车工业科技发展基金会资助项目(1210)资助~~

摘　　要：以不同出厂年限的桑塔纳轿车等速万向传动中间轴为试验对象,试验研究了中间轴前四阶固有频率、不同截面处的表面硬度等典型机械特性随出厂年限的变化情况。研究结果表明:随着中间轴出厂年限的增加,其固有频率有所下降,且下降幅度较小;中间轴固有频率最高下降1.2%,前4阶固有频率下降幅度中高阶大于低阶,但下降率的变化没有规律;不同截面处的表面硬度略微变化,存在先上升后下降的趋势;根据中间轴固有频率和硬度的变化,可以初步推断出中间轴还有60%以上的剩余寿命,具有回收利用价值。Using constant velocity universal drive shaft of Santana Automobile with different service lives,mechanical characteristics such as natural frequency and hardness were investigated. The results show that natural frequency of drive shaft decreases slightly with the increase of service life. The maximum of reduction for natural frequency is1. 2%. The high-rank natural frequency decreases more obviously than the low-rank,but no regulation was found. Surface hardness of different cross-sections changes slightly,which shows a trend from rise to decline. According to the changes of natural frequency and hardness,it predicts that drive shafts have over 60% service life.

关 键 词：等速万向传动中间轴 固有频率 表面硬度 剩余强度 剩余寿命 

分 类 号：U467.3[机械工程—车辆工程]