A deformable body dynamic analysis of planetary gears with thin rims

Kahraman, Ahmet; Kharazi, Amir A.; Umrani, M

doi:10.1016/s0022-460x(03)00122-6

Cited by 119 publications

(66 citation statements)

References 16 publications

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“…As the deformations of the gears and the carrier can change the planet load sharing drastically, use of a deformable body contact model like the ones published recently (13), (14) should be more suitable to study load sharing. Secondly, these studies investigated certain aspects of load sharing on a given planetary gear set.…”

Section: Scope and Objectivesmentioning

confidence: 99%

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Influence of Carrier and Gear Manufacturing Errors on the Static Load Sharing Behavior of Planetary Gear Sets

Bodas

Kahraman

2004

JSME Int. J., Ser. C

167

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In this paper, a state-of-the-art contact mechanics model of a planetary gear set is employed to study the effect of a number of manufacturing and assembly related carrier and gear errors on the load sharing amongst the planets. Three different groups of errors are considered: (i) time-invariant, assembly-independent errors such as carrier planet pinhole position errors, (ii) time-invariant, assembly-dependent errors such as planet tooth thickness errors, and (iii) time-varying, assembly-dependent errors such as gear run-out errors. With such errors present, planet load sharing characteristics of an n-planet system (n = 3 to 6) is investigated for different piloting configurations under quasi-static conditions. Load sharing behavior as a function of key manufacturing errors is quantified and design guidelines are proposed for better planet load sharing behavior.

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Section: Scope and Objectivesmentioning

confidence: 99%

“…Only the most critical features of this model will be summarized here as the details of this model can be found in Refs. (15), (16) and two recent applications (13), (14) . The deformation of the planetary system under load is modeled using a combination of finite element and surface integral techniques.…”

Section: Computational Modelmentioning

confidence: 99%

Influence of Carrier and Gear Manufacturing Errors on the Static Load Sharing Behavior of Planetary Gear Sets

Bodas

Kahraman

2004

JSME Int. J., Ser. C

167

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“…The mesh stiffness of the gearing is usually varying with time and frequency. The dynamic mesh stiffness is represented as Equation (5) [7] :…”

Section: Analysis On Tementioning

confidence: 99%

The Study on Excitation Responses of a Multi-stage Planetary Gearing

Tan¹

2017

dtcse

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“…Such misalignment can be due to the position error of a gear's pinhole, the pinhole diameter, 5 or the elastic deformation of pins under loading. If the gear's geometrical axis is offset from the reference axis, but both are still parallel, the problem is often called eccentricity, which can be measured by a runout test as roughly half of the runout value [22].…”

Section: -1-2 Misalignment Load Sharing and Edge Contactmentioning

confidence: 99%

Effects of floating sun gear in a wind turbine's planetary gearbox with geometrical imperfections

et al. 2014

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This paper addresses the effect of gear geometrical errors in wind turbine planetary gearboxes with a floating sun gear. Numerical simulations and experiments are employed throughout the study. A National Renewable Energy Laboratory 750-kW gearbox is modelled in a multibody environment and verified using the experimental data obtained from a dynamometer test. The gear geometrical errors, which are both assembly-dependent and assembly-independent, are described, and planet-pin misalignment and eccentricity are selected as the two most influential and key errors for case studies. Various load cases involving errors in the floating and nonfloating sun gear designs are simulated, and the planet-bearing reactions, gear vibrations, gear mesh loads and bearing fatigue lives are compared. All tests and simulations are performed at the rated wind speed.

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A deformable body dynamic analysis of planetary gears with thin rims

Cited by 119 publications

References 16 publications

Influence of Carrier and Gear Manufacturing Errors on the Static Load Sharing Behavior of Planetary Gear Sets

Influence of Carrier and Gear Manufacturing Errors on the Static Load Sharing Behavior of Planetary Gear Sets

The Study on Excitation Responses of a Multi-stage Planetary Gearing

Effects of floating sun gear in a wind turbine's planetary gearbox with geometrical imperfections

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