The spur planetary gear torsional stiffness and its crack sensitivity under quasi-static conditions

The sun-planet and ring-planet tooth mesh stiffness variations and the resulting transmission errors are the main internal vibration generation mechanisms for planetary gear systems. This paper presents the results of torsional stiffness analysis of involute spur planetary gear systems in mesh using...

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Main Authors: Xue, S., Entwistle, R., Mazhar, Ilyas, Howard, Ian
Format: Journal Article
Published: Elsevier 2016
Online Access:http://hdl.handle.net/20.500.11937/12124
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author Xue, S.
Entwistle, R.
Mazhar, Ilyas
Howard, Ian
author_facet Xue, S.
Entwistle, R.
Mazhar, Ilyas
Howard, Ian
author_sort Xue, S.
building Curtin Institutional Repository
collection Online Access
description The sun-planet and ring-planet tooth mesh stiffness variations and the resulting transmission errors are the main internal vibration generation mechanisms for planetary gear systems. This paper presents the results of torsional stiffness analysis of involute spur planetary gear systems in mesh using finite element methods. A planetary gear model with three planet gears and fixed ring gear and its subsystem models have been developed to study the subsystem and overall torsional stiffnesses. Based on the analysis of torsional mesh stiffness, predictive models for single branch sun-planet-ring and overall planetary gear torsional stiffnesses have been proposed. A crack coefficient was introduced to the sun-planet and ring-planet meshes to predict the effect and sensitivity of changes to the overall torsional mesh stiffness. The resulting mesh stiffness crack sensitivity of the overall gear system was analysed under quasi-static conditions. It was found that the carrier arm stiffness has great influence on the crack sensitivity while the overall stiffness was most sensitive to the crack on the sun-planet mesh.
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institution Curtin University Malaysia
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publishDate 2016
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spelling curtin-20.500.11937-121242020-07-27T02:58:36Z The spur planetary gear torsional stiffness and its crack sensitivity under quasi-static conditions Xue, S. Entwistle, R. Mazhar, Ilyas Howard, Ian The sun-planet and ring-planet tooth mesh stiffness variations and the resulting transmission errors are the main internal vibration generation mechanisms for planetary gear systems. This paper presents the results of torsional stiffness analysis of involute spur planetary gear systems in mesh using finite element methods. A planetary gear model with three planet gears and fixed ring gear and its subsystem models have been developed to study the subsystem and overall torsional stiffnesses. Based on the analysis of torsional mesh stiffness, predictive models for single branch sun-planet-ring and overall planetary gear torsional stiffnesses have been proposed. A crack coefficient was introduced to the sun-planet and ring-planet meshes to predict the effect and sensitivity of changes to the overall torsional mesh stiffness. The resulting mesh stiffness crack sensitivity of the overall gear system was analysed under quasi-static conditions. It was found that the carrier arm stiffness has great influence on the crack sensitivity while the overall stiffness was most sensitive to the crack on the sun-planet mesh. 2016 Journal Article http://hdl.handle.net/20.500.11937/12124 10.1016/j.engfailanal.2016.02.019 Elsevier fulltext
spellingShingle Xue, S.
Entwistle, R.
Mazhar, Ilyas
Howard, Ian
The spur planetary gear torsional stiffness and its crack sensitivity under quasi-static conditions
title The spur planetary gear torsional stiffness and its crack sensitivity under quasi-static conditions
title_full The spur planetary gear torsional stiffness and its crack sensitivity under quasi-static conditions
title_fullStr The spur planetary gear torsional stiffness and its crack sensitivity under quasi-static conditions
title_full_unstemmed The spur planetary gear torsional stiffness and its crack sensitivity under quasi-static conditions
title_short The spur planetary gear torsional stiffness and its crack sensitivity under quasi-static conditions
title_sort spur planetary gear torsional stiffness and its crack sensitivity under quasi-static conditions
url http://hdl.handle.net/20.500.11937/12124