Static contact stress analysis of a spur gear tooth using the finite element method, including frictional effects

In this study that spur gears are chosen, contact stress of spur gear is presented under the effect of rotational speed. Three-dimensional simulation of dynamic analysis of gears designed and modeled using ANSYS software. The dynamic analysis included in the determination of dynamic stresses analysis. Contact stress is theoretically calculated and analyzed and numerically estimated using both Hertzian mathematical model and finite element method respectively. Different values of rotational speed used to study its effect on contact stress. Both methods compared by evaluating the percentage error of contact stress, and the modeling of the spur gear and stress analysis of spur gear carried out using SOLID WORK and ANSYS V14, respectively. The most significant note in this study concludes that increasing speed causes vibration and pitting failure due to repetitions.

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Stress Analysis of Face Gear Tooth Subject to Distributed Load Using Global Local Finite Element Method (GLFEM)

Volume 4: 9th International Power Transmission and Gearing Conference, Parts A and B ◽

10.1115/detc2003/ptg-48037 ◽

2003 ◽

Cited By ~ 4

Author(s):

Ichiro Moriwaki ◽

Syunpei Ogaya ◽

Koji Watanabe

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Stress Analysis ◽

Contact Stress ◽

Gear Tooth ◽

Local Domain ◽

Face Gear ◽

Distributed Load ◽

Tooth Flank ◽

Element Method

The present paper describes a stress analysis of a face gear tooth subject to a distributed load. The distributed load was determined from an initial mismatch between meshing tooth flanks through geometrical analysis. A new global local finite element method was used for the analysis. In the global local finite element method, an analytical domain is divided into two parts; a global domain in which fields are defined by an analytical solution derived from a classical elastic theory, and a local domain in which fields defined by a finite element solution. Furthermore, tooth flank film elements, which enable boundary conditions on tooth flanks to be easily represented, are taken as the global domain. The calculations were performed for face gear pairs with various misalignments. Crowning modifications along lead were given to pinions, and the effect of the modifications on tooth stress distribution in a face gear tooth was discussed. As a result, both contact and bending stresses were not so large. When there are some misalignments, only contact stress increased. However, the crowning on a pinion tooth was effective for the reduction of the contact stress. Furthermore, face gear with linear profiles; i.e., approximated profiles, were also discussed. Then, it was confirmed that this profile is good approximation.

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Evaluation of Gear Tooth Stresses by Finite Element Method

Journal of Engineering for Industry ◽

10.1115/1.2803299 ◽

1995 ◽

Vol 117 (2) ◽

pp. 232-239 ◽

Cited By ~ 19

Author(s):

I. Huseyin Filiz ◽

O. Eyercioglu

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Computer Program ◽

Static Load ◽

Gear Tooth ◽

Spur Gear ◽

The Finite Element Method ◽

Contact Ratio ◽

Pressure Angle ◽

Element Method

Stresses developed in the root fillet of the spur gear tooth due to static load are evaluated by using the finite element method. The method is automated with a computer program with which the effects of module, contact ratio, fillet radius, pressure angle and teeth numbers of driving and driven gears are evaluated. The results are compared with previous studies. The formula which gives the closest results to this study is presented.

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