Date of Award
8-7-2024
Document Type
Thesis
School
School of Mechanical Engineering
Programme
Ph.D.-Doctoral of Philosophy
First Advisor
Dr.P.Marimuthu
Second Advisor
Dr.P.Dinesh Babu
Keywords
Gear Design, Finite Element Analysis, Fatigue Life, Engineering And Technology, Engineering
Abstract
The present research work investigates the contact and bending fatigue life of asymmetric helical gear and novel helical gear based on the finite element analysis. In the first phase, the contact and bending fatigue life of the asymmetric helical gear drives is estimated based on the strain life approach.
Further, a parametric study is carried out to investigate the influence of important helical gear parameters such as module, pressure angle, helix angle, gear ratio, teeth number and face width on contact and bending fatigue life of asymmetric helical gear drives. It is noted that the asymmetric helical gear shows a significant improvement in contact and bending fatigue life compared to a symmetric helical gear.
In the second phase, an optimization of important asymmetric helical gear parameters is done to achieve an optimum contact and bending fatigue life. Also, a regression equation is formulated to determine the contact and bending fatigue life of asymmetric helical gear. In the final phase, the novel helical gear is designed by varying the rack cutter tooth thickness factor to achieve a balanced contact and bending fatigue life between the gear and pinion.
Further, the influence of important gear parameters on the contact and bending fatigue life of the novel helical gear drive is determined. It is observed that the contact and bending fatigue life is balanced between the gear and pinion by modifying the rack cutter tooth thickness factor. Finally, the comparative study on asymmetric helical gear and novel helical gear is carried out in terms of the fatigue life. This study will be useful for design and develop a non-standard helical gear drive with optimum fatigue life for customized high-power transmission.
Recommended Citation
S, Rajesh Mr, "Investigating the Fatigue Life of Asymmetric and Novel Helical Gear Drives" (2024). Theses and Dissertations. 84.
https://knowledgeconnect.sastra.edu/theses/84