3Wu B,Saxena A,Khawaja T S. An approach to fault diagnosis of helicopter planetary gears[A].San Antonio,Texas,USA,2004.475-481.
4Dong M,He D,Banerjee P. Equipment health diagnosis and prognosis using hidden semi-Markov models[J].International Journal of Advanced Manufacturing Technology,2006,(30):738-749.
5Chaari F,Fakhfakh T,Haddar M. Dynamic Analysis of a Planetary Gear Failure Caused by Tooth Pitting and Cracking[J].Journal of Failure Analysis and Prevention,2006,(02):73-78.doi:10.1361/154770206X99343.
6Blunta D M,Kellerb J A. Detection of a fatigue crack in a UH-60A planet gear cartier using vibration analysis[J].Mechanical Systems and Signal Processing,2006,(20):2095-2111.
7Samuel P D,Conroy K,Pines D J. Planetary Transmission Diagnostics[ NASA Glenn Research,NASA/CR-2004-213068][R].