阶比分析技术在变速箱下线诊断中的应用  

Application of Order Analysis Technology in Transmission off-line Fault Diagnosis

作　　者：任永强[1] 卫耿源[1] 苏鹏 

机构地区：[1]合肥工业大学机械与汽车工程学院,合肥230009 [2]东风柳州汽车有限公司技术中心,广西柳州545000

出　　处：《机械工程师》2013年第3期6-8,共3页Mechanical Engineer

摘　　要：文中对下线变速箱在升、降速模式下的故障诊断进行了研究,使用基于瞬时频率估计的阶比跟踪算法,实现对非平稳信号的等角度采样,然后分析下线变速箱诊断的故障类型,计算某型号变速箱齿轮和轴的特征阶,最后通过实际应用表明,阶比分析技术可准确诊断出变速箱中定比传动零件的故障。An method for the fault diagnosis of transmission speeding up or down is researched . The Constant Angular Sampling of non-stationary signals is achieved by using Order Tracking based on the Instantaneous Frequen~：y Theory. The fault types in an off-line transmitssion is studied. Then the characteristic orders of shafts and gears in a transmission are calculated.At last, the practice shows that the failure parts holding invariable drive ratios can be well diagnosed by Order Analysis technology.

关 键 词：变速箱 阶比跟踪 阶比计算 故障诊断 

分 类 号：TP206[自动化与计算机技术—检测技术与自动化装置]