On the optimization of the asymmetric spur gears fillet geometry using Bézier curves

4th ModTech International Conference - Modern Technologies in Industrial Engineering

Plesu, Gh.^1 ; Cazan, S.^2

Faculty of Machines Construction and Industrial Management, Technical University, Iasi

700050, Romania^1

Faculty of Mechanical Engineering, Technical University, Iasi

700050, Romania^2

关键词: Bending stress;    Fillet curves;    Recent researches;    Regular curve;    Technical requirement;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/145/2/022013/pdf
DOI  :  10.1088/1757-899X/145/2/022013

来源: IOP

【 摘 要 】

Recent research on asymmetric spur gears are focused on the geometry of the gear fillet. This happens because it is very important to avoid the high level of bending stress of the teeth. There are some authors that show how bending stress level can get lower using a proper geometry of the fillet curve. In this paper, there is presented a new concept to optimizing the geometry of the fillet curve. There is used the reasoning of finding a regular curve with minimum length that doesn't affect the functionality of the gear. Because the procedure of finding this curve is a difficult one, there is presented a special kind of curves that can accomplish all the technical requirements. The procedure is based on the considerations that are illustrated bellow.