Dynamic Features of a Planetary Gear System With Tooth Crack Under Different Sizes and Inclination Angles
- 28 March 2013
- journal article
- Published by ASME International in Journal of Vibration and Acoustics
- Vol. 135 (3), 031004
- https://doi.org/10.1115/1.4023300
Abstract
Planetary gears are widely used in the industry due to their advantages of compactness, high power-to-weight ratios, high efficiency, and so on. However, planetary gears such as that in wind turbine transmissions always operate under dynamic conditions with internal and external load fluctuations, which accelerate the occurrence of gear failures, such as tooth crack, pitting, spalling, wear, scoring, scuffing, etc. As one of these failure modes, gear tooth crack at the tooth root due to tooth bending fatigue or excessive load is investigated; how it influences the dynamic features of planetary gear system is studied. The applied tooth root crack model can simulate the propagation process of the crack along tooth width and crack depth. With this approach, the mesh stiffness of gear pairs in mesh is obtained and incorporated into a planetary gear dynamic model to investigate the effects of the tooth root crack on the planetary gear dynamic responses. Tooth root cracks on the sun gear and on the planet gear are considered, respectively, with different crack sizes and inclination angles. Finally, analysis regarding the influence of tooth root crack on the dynamic responses of the planetary gear system is performed in time and frequency domains, respectively. Moreover, the differences in the dynamic features of the planetary gear between the cases that tooth root crack on the sun gear and on the planet gear are found.Keywords
This publication has 32 references indexed in Scilit:
- Parametric Instability of Planetary Gears Having Elastic Continuum Ring GearsJournal of Vibration and Acoustics, 2012
- Influence of Planet Pin Stiffness on Load Sharing in Planetary Gear DrivesJournal of Mechanical Design, 2010
- Modal Properties of Planetary Gears With an Elastic Continuum Ring GearJournal of Applied Mechanics, 2008
- An Experimental Study of the Influence of Manufacturing Errors on the Planetary Gear Stresses and Planet Load SharingJournal of Mechanical Design, 2008
- Nonlinear dynamics of a planetary gear system with multiple clearancesMechanism and Machine Theory, 2003
- Gear tooth stiffness reduction measurement using modal analysis and its use in wear fault severity assessment of spur gearsNDT & E International, 2003
- A PHYSICAL EXPLANATION FOR THE EFFECTIVENESS OF PLANET PHASING TO SUPPRESS PLANETARY GEAR VIBRATIONJournal of Sound and Vibration, 2000
- Analytical Characterization of the Unique Properties of Planetary Gear Free VibrationJournal of Vibration and Acoustics, 1999
- Experiments on Nonlinear Dynamic Behavior of an Oscillator With Clearance and Periodically Time-Varying ParametersJournal of Applied Mechanics, 1997
- A Rotary Model for Spur Gear DynamicsJournal of Mechanical Design, 1985