---
_id: '34434'
abstract:
- lang: eng
  text: In timing chain drives, the chain is the critical component regarding the
    wear. Relative movements take place at the chain joint between pin and bush, which
    lead to wear of the chain joint due to friction and so to chain elongation. The
    chain joint is generally lubricated with oils, through which elastohydrodynamic
    processes can occur in the gap between the pin and the bush of the chain joint.
    A simulation model is developed here to examine these elastohydrodynamic processes
    considering a mass conserving cavitation model, the Newtonian flow behaviour of
    the lubricant and the structuring of the bush surface, whereby the real form of
    the bush is considered. MBS simulations are used to obtain realistic loads on
    the chain joint.
author:
- first_name: Lionel
  full_name: Simo Kamga, Lionel
  last_name: Simo Kamga
- first_name: Dominik
  full_name: Meffert, Dominik
  last_name: Meffert
- first_name: Balázs
  full_name: Magyar, Balázs
  id: '97759'
  last_name: Magyar
- first_name: Manuel
  full_name: Oehler, Manuel
  last_name: Oehler
- first_name: Bernd
  full_name: Sauer, Bernd
  last_name: Sauer
citation:
  ama: Simo Kamga L, Meffert D, Magyar B, Oehler M, Sauer B. Simulative investigation
    of the influence of surface texturing on the elastohydrodynamic lubrication in
    chain joints. <i>Tribology International</i>. 2022;171:107564. doi:<a href="https://doi.org/10.1016/j.triboint.2022.107564">https://doi.org/10.1016/j.triboint.2022.107564</a>
  apa: Simo Kamga, L., Meffert, D., Magyar, B., Oehler, M., &#38; Sauer, B. (2022).
    Simulative investigation of the influence of surface texturing on the elastohydrodynamic
    lubrication in chain joints. <i>Tribology International</i>, <i>171</i>, 107564.
    <a href="https://doi.org/10.1016/j.triboint.2022.107564">https://doi.org/10.1016/j.triboint.2022.107564</a>
  bibtex: '@article{Simo Kamga_Meffert_Magyar_Oehler_Sauer_2022, title={Simulative
    investigation of the influence of surface texturing on the elastohydrodynamic
    lubrication in chain joints}, volume={171}, DOI={<a href="https://doi.org/10.1016/j.triboint.2022.107564">https://doi.org/10.1016/j.triboint.2022.107564</a>},
    journal={Tribology International}, author={Simo Kamga, Lionel and Meffert, Dominik
    and Magyar, Balázs and Oehler, Manuel and Sauer, Bernd}, year={2022}, pages={107564}
    }'
  chicago: 'Simo Kamga, Lionel, Dominik Meffert, Balázs Magyar, Manuel Oehler, and
    Bernd Sauer. “Simulative Investigation of the Influence of Surface Texturing on
    the Elastohydrodynamic Lubrication in Chain Joints.” <i>Tribology International</i>
    171 (2022): 107564. <a href="https://doi.org/10.1016/j.triboint.2022.107564">https://doi.org/10.1016/j.triboint.2022.107564</a>.'
  ieee: 'L. Simo Kamga, D. Meffert, B. Magyar, M. Oehler, and B. Sauer, “Simulative
    investigation of the influence of surface texturing on the elastohydrodynamic
    lubrication in chain joints,” <i>Tribology International</i>, vol. 171, p. 107564,
    2022, doi: <a href="https://doi.org/10.1016/j.triboint.2022.107564">https://doi.org/10.1016/j.triboint.2022.107564</a>.'
  mla: Simo Kamga, Lionel, et al. “Simulative Investigation of the Influence of Surface
    Texturing on the Elastohydrodynamic Lubrication in Chain Joints.” <i>Tribology
    International</i>, vol. 171, 2022, p. 107564, doi:<a href="https://doi.org/10.1016/j.triboint.2022.107564">https://doi.org/10.1016/j.triboint.2022.107564</a>.
  short: L. Simo Kamga, D. Meffert, B. Magyar, M. Oehler, B. Sauer, Tribology International
    171 (2022) 107564.
date_created: 2022-12-15T09:28:48Z
date_updated: 2023-04-27T12:10:34Z
department:
- _id: '146'
doi: https://doi.org/10.1016/j.triboint.2022.107564
extern: '1'
intvolume: '       171'
keyword:
- EHL-simulation
- Cavitation
- Chain drives
- Chain joint
- Micro-structuring
language:
- iso: eng
page: '107564'
publication: Tribology International
publication_identifier:
  issn:
  - 0301-679X
quality_controlled: '1'
status: public
title: Simulative investigation of the influence of surface texturing on the elastohydrodynamic
  lubrication in chain joints
type: journal_article
user_id: '38077'
volume: 171
year: '2022'
...
---
_id: '34438'
abstract:
- lang: eng
  text: The sealing capabilities of RSS do not only depend on the seal itself but
    also on the lubricant and the shaft surface. A twist structure on the surface
    can cause pumping of the fluid during shaft rotation which can result in leakage.
    In this paper a special, new turning method, which consists of at least two turning
    steps with feed in reciprocal direction, is presented as an alternative to the
    conventional manufacturing process. The goal is to create a surface structure
    with a net pumping rate of zero. Shafts turned with the new proposed method are
    compared to turned shafts from previous investigations [1]. Criteria for the comparison
    are the surface pumping rate, leakage and wear behavior of the surface.
author:
- first_name: Stefan
  full_name: Thielen, Stefan
  last_name: Thielen
- first_name: Balázs
  full_name: Magyar, Balázs
  id: '97759'
  last_name: Magyar
- first_name: Bernd
  full_name: Sauer, Bernd
  last_name: Sauer
- first_name: Frank
  full_name: Schneider, Frank
  last_name: Schneider
- first_name: Patrick
  full_name: Mayer, Patrick
  last_name: Mayer
- first_name: Benjamin
  full_name: Kirsch, Benjamin
  last_name: Kirsch
- first_name: Ralf
  full_name: Müller, Ralf
  last_name: Müller
- first_name: Erik
  full_name: v. Harbou, Erik
  last_name: v. Harbou
- first_name: Jan C.
  full_name: Aurich, Jan C.
  last_name: Aurich
citation:
  ama: Thielen S, Magyar B, Sauer B, et al. Functional investigation of zero lead
    radial shaft seal counter-surfaces turned with a special method. <i>Tribology
    International</i>. 2018;118:442-450. doi:<a href="https://doi.org/10.1016/j.triboint.2017.02.002">https://doi.org/10.1016/j.triboint.2017.02.002</a>
  apa: Thielen, S., Magyar, B., Sauer, B., Schneider, F., Mayer, P., Kirsch, B., Müller,
    R., v. Harbou, E., &#38; Aurich, J. C. (2018). Functional investigation of zero
    lead radial shaft seal counter-surfaces turned with a special method. <i>Tribology
    International</i>, <i>118</i>, 442–450. <a href="https://doi.org/10.1016/j.triboint.2017.02.002">https://doi.org/10.1016/j.triboint.2017.02.002</a>
  bibtex: '@article{Thielen_Magyar_Sauer_Schneider_Mayer_Kirsch_Müller_v. Harbou_Aurich_2018,
    title={Functional investigation of zero lead radial shaft seal counter-surfaces
    turned with a special method}, volume={118}, DOI={<a href="https://doi.org/10.1016/j.triboint.2017.02.002">https://doi.org/10.1016/j.triboint.2017.02.002</a>},
    journal={Tribology International}, author={Thielen, Stefan and Magyar, Balázs
    and Sauer, Bernd and Schneider, Frank and Mayer, Patrick and Kirsch, Benjamin
    and Müller, Ralf and v. Harbou, Erik and Aurich, Jan C.}, year={2018}, pages={442–450}
    }'
  chicago: 'Thielen, Stefan, Balázs Magyar, Bernd Sauer, Frank Schneider, Patrick
    Mayer, Benjamin Kirsch, Ralf Müller, Erik v. Harbou, and Jan C. Aurich. “Functional
    Investigation of Zero Lead Radial Shaft Seal Counter-Surfaces Turned with a Special
    Method.” <i>Tribology International</i> 118 (2018): 442–50. <a href="https://doi.org/10.1016/j.triboint.2017.02.002">https://doi.org/10.1016/j.triboint.2017.02.002</a>.'
  ieee: 'S. Thielen <i>et al.</i>, “Functional investigation of zero lead radial shaft
    seal counter-surfaces turned with a special method,” <i>Tribology International</i>,
    vol. 118, pp. 442–450, 2018, doi: <a href="https://doi.org/10.1016/j.triboint.2017.02.002">https://doi.org/10.1016/j.triboint.2017.02.002</a>.'
  mla: Thielen, Stefan, et al. “Functional Investigation of Zero Lead Radial Shaft
    Seal Counter-Surfaces Turned with a Special Method.” <i>Tribology International</i>,
    vol. 118, 2018, pp. 442–50, doi:<a href="https://doi.org/10.1016/j.triboint.2017.02.002">https://doi.org/10.1016/j.triboint.2017.02.002</a>.
  short: S. Thielen, B. Magyar, B. Sauer, F. Schneider, P. Mayer, B. Kirsch, R. Müller,
    E. v. Harbou, J.C. Aurich, Tribology International 118 (2018) 442–450.
date_created: 2022-12-15T09:55:29Z
date_updated: 2022-12-15T09:55:54Z
department:
- _id: '146'
doi: https://doi.org/10.1016/j.triboint.2017.02.002
extern: '1'
intvolume: '       118'
keyword:
- Radial shaft seals
- Turned surfaces
- Microstructure
language:
- iso: eng
page: 442-450
publication: Tribology International
publication_identifier:
  issn:
  - 0301-679X
status: public
title: Functional investigation of zero lead radial shaft seal counter-surfaces turned
  with a special method
type: journal_article
user_id: '38077'
volume: 118
year: '2018'
...
---
_id: '34439'
abstract:
- lang: eng
  text: A method for the reconstruction of turned shaft surfaces with a (fractal)
    Weierstrass–Mandelbrot-function (WMF) is presented. The WMF is modified to allow
    to freely choose a phase-shift for every frequency. The reconstruction is based
    on distinct profiles in axial and tangential direction and the statistical distribution
    of low-wavelength portions of the surface is taken into account by adding t-distributed
    random deviations to the surface. The work is validated by reconstructing measured
    shaft surfaces with different manufacturing parameters, which shows good accuracy
    for periodic surfaces. This method allows for a characterization of surfaces with
    a limited number of parameters and can be used to store the characteristics of
    measured surfaces with a reduced amount of data compared to a point-cloud surface.
author:
- first_name: Stefan
  full_name: Thielen, Stefan
  last_name: Thielen
- first_name: Balázs
  full_name: Magyar, Balázs
  id: '97759'
  last_name: Magyar
- first_name: Attila
  full_name: Piros, Attila
  last_name: Piros
citation:
  ama: Thielen S, Magyar B, Piros A. Reconstruction of three-dimensional turned shaft
    surfaces with fractal functions. <i>Tribology International</i>. 2016;95:349-357.
    doi:<a href="https://doi.org/10.1016/j.triboint.2015.11.028">https://doi.org/10.1016/j.triboint.2015.11.028</a>
  apa: Thielen, S., Magyar, B., &#38; Piros, A. (2016). Reconstruction of three-dimensional
    turned shaft surfaces with fractal functions. <i>Tribology International</i>,
    <i>95</i>, 349–357. <a href="https://doi.org/10.1016/j.triboint.2015.11.028">https://doi.org/10.1016/j.triboint.2015.11.028</a>
  bibtex: '@article{Thielen_Magyar_Piros_2016, title={Reconstruction of three-dimensional
    turned shaft surfaces with fractal functions}, volume={95}, DOI={<a href="https://doi.org/10.1016/j.triboint.2015.11.028">https://doi.org/10.1016/j.triboint.2015.11.028</a>},
    journal={Tribology International}, author={Thielen, Stefan and Magyar, Balázs
    and Piros, Attila}, year={2016}, pages={349–357} }'
  chicago: 'Thielen, Stefan, Balázs Magyar, and Attila Piros. “Reconstruction of Three-Dimensional
    Turned Shaft Surfaces with Fractal Functions.” <i>Tribology International</i>
    95 (2016): 349–57. <a href="https://doi.org/10.1016/j.triboint.2015.11.028">https://doi.org/10.1016/j.triboint.2015.11.028</a>.'
  ieee: 'S. Thielen, B. Magyar, and A. Piros, “Reconstruction of three-dimensional
    turned shaft surfaces with fractal functions,” <i>Tribology International</i>,
    vol. 95, pp. 349–357, 2016, doi: <a href="https://doi.org/10.1016/j.triboint.2015.11.028">https://doi.org/10.1016/j.triboint.2015.11.028</a>.'
  mla: Thielen, Stefan, et al. “Reconstruction of Three-Dimensional Turned Shaft Surfaces
    with Fractal Functions.” <i>Tribology International</i>, vol. 95, 2016, pp. 349–57,
    doi:<a href="https://doi.org/10.1016/j.triboint.2015.11.028">https://doi.org/10.1016/j.triboint.2015.11.028</a>.
  short: S. Thielen, B. Magyar, A. Piros, Tribology International 95 (2016) 349–357.
date_created: 2022-12-15T09:56:44Z
date_updated: 2022-12-15T09:56:59Z
department:
- _id: '146'
doi: https://doi.org/10.1016/j.triboint.2015.11.028
extern: '1'
intvolume: '        95'
keyword:
- Roughness
- Structure
- Fractal
- Machining
language:
- iso: eng
page: 349-357
publication: Tribology International
publication_identifier:
  issn:
  - 0301-679X
status: public
title: Reconstruction of three-dimensional turned shaft surfaces with fractal functions
type: journal_article
user_id: '38077'
volume: 95
year: '2016'
...