Research Article Open Access

Comparison Between Niemann’s and Finite Element Method for the Estimation of Maximum Allowable Stress of Meshing Spur Gear Teeth at Highest Point of Single Tooth Contact

Konstandinos G. Raptis1, Theodore N. Costopoulos1 and Andonios D. Tsolakis1
  • 1 National Techical University of Athens, Greece
American Journal of Engineering and Applied Sciences
Volume 5 No. 2, 2012, 205-216

DOI: https://doi.org/10.3844/ajeassp.2012.205.216

Submitted On: 7 June 2012 Published On: 27 August 2012

How to Cite: Raptis, K. G., Costopoulos, T. N. & Tsolakis, A. D. (2012). Comparison Between Niemann’s and Finite Element Method for the Estimation of Maximum Allowable Stress of Meshing Spur Gear Teeth at Highest Point of Single Tooth Contact. American Journal of Engineering and Applied Sciences, 5(2), 205-216. https://doi.org/10.3844/ajeassp.2012.205.216

Abstract

Purpose of this study is the consideration of loading and contact problems encountered at rotating machine elements and especially at toothed gears. The later are some of the most commonly used mechanical components for rotary motion and power transmission. This fact proves the necessity for improved reliability and enhanced service life, which require precise and clear knowledge of the stress field at gear tooth. This study investigates the maximum allowable stresses occurring during spur gear tooth meshing computed using Niemann’s formulas at Highest Point of Single Tooth Contact (HPSTC). Gear material, module, power rating and number of teeth are considered as variable parameters. Furthermore, the maximum allowable stresses for maximum power transmission conditions are considered keeping the other parameters constant. After the application of Niemann’s formulas to both loading cases, the derived results are compared to the respective estimations of Finite Element Method (FEM) using ANSYS software. Comparison of the results derived from Niemann’s formulas and FEM show that deviations between the two methods are kept at low level for both loading cases independently of the applied power (either random or maximum) and the respective tangential load.

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Keywords

  • Highest Point of Single Tooth Contact (HPSTC)
  • Finite Element Method (FEM)