Method for recognizing early liquid filling fault of aero-engine rotor

摘要: The invention provides a method for recognizing an early liquid filling fault of aero-engine rotor and can recognize the simply effectively distinguish from unbalance fault. With adoption method, difference between integral areas amplitude-frequency characteristic curves with healthy are taken as recognition features. Before peak point, amplitude is higher than that rotor, after lower rotor; while relation fixed before condition on one side other avoided. On basis area curve filled determined in obvious symbol distinguishing left right areas, unique rotor. be distinguished aero-engine. recognized effectively, has characteristics being convenient to popularize use high credibility.