CYCLOSTATIONARY PROCESSES: APPLICATION IN GEAR FAULTS EARLY DIAGNOSIS

✍ Scribed by C. CAPDESSUS; M. SIDAHMED; J.L. LACOUME

• Book ID: 102617368
• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 217 KB
• Volume: 14
• Category: Article
• ISSN: 0888-3270
• DOI: 10.1006/mssp.1999.1260

✦ Synopsis

The paper introduces the theory of cyclostationary processes as a powerful tool for the diagnosis of rotating machines. It is shown that the well-known synchronised averaging method is the expression of cyclostationarity at the "rst order, and that the spectral correlation function issued from the second-order cyclostationarity is an e$cient parameter for the early diagnosis of faults in rotating machines. Moreover, it is shown that vibration signals measured on gear systems display second-order cyclostationarity. Application in early diagnosis of spalling in gear teeth demonstrates the power of this new parameter.