CAJ | 학술논문

为诊断蜗杆减速机的蜗轮齿形变化故障，提出了一种新的振动信号特征检测方法，即将自相关分析方法与传统的齿轮故障分析方法经验模态分解及HiIbert变换相结合的方法。采用经验模态分解，将蜗杆减速机振动信号分离为各个不同频率段的本征模态函数（ IMF）分量，运用自相关分析高效选取含有蜗轮故障特征信号的IMF分量，最后应用HiIbert变换提取由自相关算法选取的IMF分量中蜗轮故障特征信息。采用JD45+齿轮测量仪分析了蜗轮齿形变化量，验证了上述方法的可行性。
위진단와간감속궤적와륜치형변화고장，제출료일충신적진동신호특정검측방법，즉장자상관분석방법여전통적치륜고장분석방법경험모태분해급HiIbert변환상결합적방법。채용경험모태분해，장와간감속궤진동신호분리위각개불동빈솔단적본정모태함수（ IMF）분량，운용자상관분석고효선취함유와륜고장특정신호적IMF분량，최후응용HiIbert변환제취유자상관산법선취적IMF분량중와륜고장특정신식。채용JD45+치륜측량의분석료와륜치형변화량，험증료상술방법적가행성。
In Order tO diagnOsis the fauIt Of wOrm reducer caused by wOrm gear tOOth prOfiIe changed,a new vibratiOn signaI detectiOn methOd is prOpOsed. The new methOd was that autOcOrreIatiOn anaIysis was referenced tO traditiOnaI gear fauIt anaIysis methOd which were empiricaI mOde decOmpOsitiOn( EMD)and HiIbert transfOrm. The wOrm reducer vibratiOn signaI were separated tO different intrinsic mOde functiOns cOmpOnent in different frequency( IMF ). The autOcOrreIatiOn anaIysis methOd is used tO seIect IMF cOmpOnent which cOntaining wOrm gear fauIt characteristic signaI efficientIy. FinaIIy, the fauIt feature Of IMF cOmpOnent is extracted by HiIbert transfOrm. The JD45 + measuring instrument measuring the changed amOunt Of wOrm gear tOOth prOfiIe is used tO verify the feasibiIity Of this methOd.