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Hybrid Diagnostics and Prognostics of Planetary Gearboxes
2021The effective condition monitoring of planetary gearboxes is important for making informed maintenance decisions and minimizing machine downtime. Traditional physics-based and data-driven approaches for condition monitoring of planetary gearboxes have inherent shortcomings that limit their practical application for remaining useful life prediction ...
Douw G. Marx +2 more
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An Experimental Characterization of a Planetary Gearbox
2018This paper present an experimental characterization of a planetary gearbox designed at LARM. A new test bed, which consist of an AC motor coupled to the gearbox to drive a mechanical load, was worked out in order to analyze the differential operation stage of the planetary gearbox by means of setting a varying load.
Claudia Aide González-Cruz +1 more
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Impact of Shaft Misalignments in Planetary Gearboxes
Volume 11: 2023 International Power Transmission and Gearing Conference (PTG), 2023Abstract Planetary gear sets have a more complex structure than layshaft gearboxes which leads to challenges in design, analysis and operation. In this paper, design critical phenomena in planetary gear sets are addressed and latest test bench findings are presented. These focus on the impact of carrier shaft and planet pin misalignments
Marius Fuerst +2 more
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Design and Manufacture of a Planetary Gearbox Rig
Applied Mechanics and Materials, 2013Planetary gearboxes are required in many applications but have a high failure rate especially in wind turbines where rapid growth in turbine size is placing larger demands on the gearboxes. Current condition monitoring techniques are less effective at detecting faults in planetary gearboxes due to the complexity of the internal rotating components.
A.O. Bligh, Noor A. Ahmed, Y.Y. Zheng
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Optimization of planetary gearboxes
2017This study investigates the effect of tooth profile modification on the vibrations of a single stage spur planetary gearbox. A lumped mass nonlinear dynamic model of the gearbox is used [1] to study the effect of tooth profile modifications applied on the sun-planet and ring-planet meshes on vibration behavior.
Masoumi A., Barbieri M., Pellicano F.
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Health Index Development for Planetary Gearboxes
2020Planetary gearboxes are widely used in machineries such as wind turbines and helicopters. To maximize their effectiveness over their lifecycle, condition monitoring is often used, and proper health indexes can be developed utilizing condition monitoring data.
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Feature selection for fault level diagnosis of planetary gearboxes
Advances in Data Analysis and Classification, 2014zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhiliang Liu +3 more
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Gearbox power loss. Part III: Application to a parallel axis and a planetary gearbox
Tribology International, 2015Abstract In the third part of this work, the rolling bearing torque loss model, the lubricant factor extracted from the FZG tests with wind turbine gear oils and the loss factor for helical gears, developed in Part I and Part II of this work, will be applied to predict the power loss in a parallel axis and a planetary gearbox.
Carlos M.C.G. Fernandes +3 more
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Unconventional Gear Profiles in Planetary Gearboxes
2023The power loss of high ratio planetary gear trains (PGTs) is mainly constrained by the meshing efficiency of acting gears in each stage. Such gear wheels, predominantly with involute teeth profiles, work with a meshing efficiency of around 99%. When these gears are used in PGTs with reduction ratios of several hundred to one (500:1), despite their ...
Varadharajan, Anand +5 more
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Research on the Fault Diagnosis of Planetary Gearbox
2017As a main transmission composition, planetary gearbox is widely used in wind turbine generation system. Due to the complicated working environment, sun gears, planet gear, ring gear and other key components are prone to failure. Therefore, the researches on the fault features of the planetary gearbox have significance to understand the operation of ...
Tian Han, Zhen Bo Wei, Chen Li
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