三相干系数谱的二维切片在船用齿轮故障诊断中的应用  

2- D Slice of Tri- coherency Coefficient Spectrum in the Application of Fault Diagnosis of Marine Gear

作　　者：耿文飞[1] 梅二召 吴文兵[1] 

机构地区：[1]昆明理工大学信息工程与自动化学院,云南昆明650500

出　　处：《机械传动》2016年第1期169-172,共4页Journal of Mechanical Transmission

基　　金：国家自然科学基金(65009301);昆明理工大学省级人培项目(14118829)

摘　　要：为解决船用齿轮故障诊断问题,提出一种基于不同频率下的三相干系数谱的二维切片图进行对比的方法。通过采集齿轮的振动数据,预处理后进行三相干函数处理,对振动数据在不同频率下的三相干系数谱二维切片图进行对比,其结果差异明显。试验表明,将三相干系数谱二维切片应用于故障特征的分析诊断中,在某些特定的环境下可以提高故障识别和诊断的正确率。In order to solve the problem of fault diagnosis of marine gear,a method of comparing 2- D slice of tri- coherency coefficients figure under different frequency of vibration is proposed. Through the sampling data of vibration of marine gear,the tri- coherency function deal with is carried out after preprocessing.The 2- D slice of tri- coherency coefficients figures of data of working vibration of marine gear system are compared under different frequencies,and the result is different obviously. Experiments show that the analysis and diagnosis of 2- D slice of tri- coherency coefficient spectrum are applied to the fault characteristics,which can improve the correct rate of the identification and diagnosis of different fault in some special conditions.

关 键 词：船用齿轮 三相干系数的二维切片 频率 故障诊断 

分 类 号：U672[交通运输工程—船舶及航道工程]