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Tooth bending strength of gears with a progressive curved path of contact

Zorko, Damijan ; Duhovnik, Jožef and Tavčar, Jože LU (2021) In Journal of Computational Design and Engineering 8(4). p.1037-1058
Abstract
The article presents a comprehensive study on the tooth bending strength of spur gears with a progressive curved path of contact, or so-called S-gears. Systematic gear meshing simulations were conducted to study the effects of S-gear geometry parameters on tooth bending strength. Different S-gear geometries were analysed in a systematically organized manner, and a comparison was made against a standard 20° pressure angle involute shape. Furthermore, different material combinations, e.g. polymer/polymer, steel/polymer, and steel/steel, of both drive and driven gear were analysed within a meaningful range of loads. The gear profile shape, material combination of the drive and the driven gear, and the transmitted load were found as the main... (More)
The article presents a comprehensive study on the tooth bending strength of spur gears with a progressive curved path of contact, or so-called S-gears. Systematic gear meshing simulations were conducted to study the effects of S-gear geometry parameters on tooth bending strength. Different S-gear geometries were analysed in a systematically organized manner, and a comparison was made against a standard 20° pressure angle involute shape. Furthermore, different material combinations, e.g. polymer/polymer, steel/polymer, and steel/steel, of both drive and driven gear were analysed within a meaningful range of loads. The gear profile shape, material combination of the drive and the driven gear, and the transmitted load were found as the main parameters affecting gear tooth bending stress. Complex, non-linear relations between the recognized effects and the corresponding root stress were observed. Based on the numerical results, a shape factor, which considers the above-mentioned effects, was introduced, and a model for root strength control of S-gears was proposed and verified employing the finite element method (FEM). (Less)
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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
S-gear, stress, bending strength, polymers, gears, FEM
in
Journal of Computational Design and Engineering
volume
8
issue
4
article number
qwab031
pages
22 pages
publisher
Oxford University Press
external identifiers
  • scopus:85109353557
ISSN
2288-5048
DOI
10.1093/jcde/qwab031
language
English
LU publication?
yes
id
102eaacc-5cd2-4c37-9d0d-af87391edeb6
date added to LUP
2021-06-19 09:09:12
date last changed
2023-04-02 07:53:12
@article{102eaacc-5cd2-4c37-9d0d-af87391edeb6,
  abstract     = {{The article presents a comprehensive study on the tooth bending strength of spur gears with a progressive curved path of contact, or so-called S-gears. Systematic gear meshing simulations were conducted to study the effects of S-gear geometry parameters on tooth bending strength. Different S-gear geometries were analysed in a systematically organized manner, and a comparison was made against a standard 20° pressure angle involute shape. Furthermore, different material combinations, e.g. polymer/polymer, steel/polymer, and steel/steel, of both drive and driven gear were analysed within a meaningful range of loads. The gear profile shape, material combination of the drive and the driven gear, and the transmitted load were found as the main parameters affecting gear tooth bending stress. Complex, non-linear relations between the recognized effects and the corresponding root stress were observed. Based on the numerical results, a shape factor, which considers the above-mentioned effects, was introduced, and a model for root strength control of S-gears was proposed and verified employing the finite element method (FEM).}},
  author       = {{Zorko, Damijan and Duhovnik, Jožef and Tavčar, Jože}},
  issn         = {{2288-5048}},
  keywords     = {{S-gear; stress; bending strength; polymers; gears; FEM}},
  language     = {{eng}},
  month        = {{08}},
  number       = {{4}},
  pages        = {{1037--1058}},
  publisher    = {{Oxford University Press}},
  series       = {{Journal of Computational Design and Engineering}},
  title        = {{Tooth bending strength of gears with a progressive curved path of contact}},
  url          = {{http://dx.doi.org/10.1093/jcde/qwab031}},
  doi          = {{10.1093/jcde/qwab031}},
  volume       = {{8}},
  year         = {{2021}},
}