Tooth Root Stress Relief Hole Optimization on the Spur and Helical Gears


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Authors

  • Efe Savran Bursa Uludag University
  • Fatih Karpat Bursa Uludag University

Keywords:

Involute Spur Gear, Stress Relief Hole, Tooth Root Stress, Finite Element Analysis, Gear Design

Abstract

In this study, optimal design and placement of tooth root stress-relieving holes in spur and helical
gears were made. 3-dimensional models of a spur gear with a module of 3 and several teeth of 20 a helical
gear with the same dimensions and a helical gear with a helix angle of 15 degrees were created in
SolidWorks. 8 different hole combinations were added to the gear models and included in the static analysis
in ANSYS with the same boundary conditions. In the finite element analyses, general gear stress
distribution, tooth root stress distribution, and deformation results were obtained. According to the findings,
a 1.25 mm diameter hole opened on a 50 mm diameter circle gave the most successful result in reducing
spur gear tooth root stress and gear mass. However, an effective result could not be obtained in the helical
gear.

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Author Biographies

Efe Savran, Bursa Uludag University

Mechanical Engineering Department, 16059, Bursa, Turkey

Fatih Karpat, Bursa Uludag University

Mechanical Engineering Department, 16059, Bursa, Turkey

References

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O. Doğan, T. G. Yılmaz, and F. Karpat, “Stress analysis of involute spur gears with different parameters by finite element and graphical method,” J. Fac. Eng. Archit. Gazi Univ., vol. 33, no. 4, pp. 1493–1504, 2018, doi: 10.17341/gazimmfd.416445.

T. G. Yılmaz and F. Karpat, “The Effect of Tooth Thickness on Root Stress of Internal Spur Gear Mechanism,” Int. Res. J. Eng. Technol., vol. 6, no. 11, pp. 2079–2083, 2019, doi: 10.1177/0954406220982007.

V. Pham, G. Wen, and H. Yin, “Optimization Design for Spur Gear with Stress-Relieving Holes Optimization Design for Spur Gear with,” Int. J. Comput. Methods, vol. 12, no. 2, pp. 1–11, 2015, doi: 10.1142/S0219876215500061.

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A. S. Dhavale and A. Utpat, “Study of Stress Relief Features at Root of Teeth of Spur Gear,” Int. J. Eng. Res. Appl., vol. 3, no. 3, pp. 895–899, 2013.

T. G. Yılmaz, O. Doğan, and F. Karpat, “A numerical investigation on the hybrid spur gears: Stress and dynamic analysis,” J. Mech. Eng. Sci., vol. 236, no. 1, pp. 354–369, 2022, doi: 10.1177/0954406220982007.

T. G. Yılmaz, G. Karadere, and F. Karpat, “A Numerical Analysis of Hybrid Spur Gears with Asymmetric Teeth: Stress and Dynamic Behavior,” Machines, vol. 10, no. 11, pp. 1–25, 2022, doi: 10.3390/machines10111056.

F. Karpat, 2005. "Asimetrik Evolvent Dişe Sahip Düz Dişli Çarkların Analizi". Doktora Tezi, Uludağ Üniversitesi Fen Bilimleri Enstitüsü.

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Published

2024-10-27

How to Cite

Savran, E., & Karpat, F. (2024). Tooth Root Stress Relief Hole Optimization on the Spur and Helical Gears . International Journal of Advanced Natural Sciences and Engineering Researches, 8(9), 343–352. Retrieved from https://as-proceeding.com/index.php/ijanser/article/view/2157

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