Open AccessAmplitude modulations in planetary gears
Author(s) -
Luo Huageng,
Hatch Charles,
Hanna Jesse,
Kalb Matt,
Weiss Adam,
Winterton John,
Inalpolat Murat,
Dannehy Christopher
Publication year - 2014
Publication title -
wind energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.743
H-Index - 92
eISSN - 1099-1824
pISSN - 1095-4244
DOI - 10.1002/we.1545
Subject(s) - vibration , amplitude , planet , trigonometric functions , gear train , acoustics , frequency modulation , engineering , set (abstract data type) , modulation (music) , physics , control theory (sociology) , computer science , mechanical engineering , optics , spiral bevel gear , mathematics , telecommunications , geometry , bandwidth (computing) , artificial intelligence , control (management) , astrophysics , programming language
ABSTRACT A planetary gear set introduces complicated gear vibration frequency structures, especially in sequentially phased planetary gear sets. Frequency components from a fixed sensor can be enhanced and/or canceled with different planets and ring gear configurations. In this study, an amplitude modulation based formula and simple trigonometric function manipulations are used to reveal the major physical phenomena in a planetary gearbox. The formulation used in this study permits unlimited modulation indices as well as unrestricted planet passing signal responses sensed at fixed transducer locations on the gearbox. Numerical simulations and field examples are given in the end of the paper to validate the analysis. Copyright © 2012 John Wiley & Sons, Ltd.