Tooth Root Stress Relief Hole Optimization on the Spur and Helical Gears
Abstract views: 1 / PDF downloads: 2
Keywords:
Involute Spur Gear, Stress Relief Hole, Tooth Root Stress, Finite Element Analysis, Gear DesignAbstract
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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References
T. G. Yılmaz, O. Doğan, and F. Karpat, “A comparative numerical study of forged bi-metal gears: Bending strength and dynamic response,” Mech. Mach. Theory, vol. 141, no. 1, pp. 117–135, 2019, doi: 10.1016/j.mechmachtheory.2019.07.007.
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.
R. K. Rathore and A. Tiwari, “Bending Stress Analysis & Optimization of Spur Gear,” Int. J. Eng. Res. Technol., vol. 3, no. 5, pp. 2044–2049, 2014, [Online]. Available: https://www.researchgate.net/publication/332187314
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.