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research-article

A Gear Load Distribution Model for a Planetary Gear Set with a Flexible Ring Gear Having External Splines

[+] Author and Article Information
Yong Hu

Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH 43210
hu.816@osu.edu

David Talbot

Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH 43210
talbot.11@osu.edu

Ahmet Kahraman

Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH 43210
kahraman.1@osu.edu

1Corresponding author.

ASME doi:10.1115/1.4041583 History: Received July 30, 2018; Revised September 17, 2018

Abstract

In order to accurately predict ring gear deformations and to investigate the effects of ring gear flexibility on quasi-static behaviors of planetary gear sets, a complete load distribution model of planetary gear sets having flexible ring gears will be formulated here based on the baseline model proposed by the same authors [1]. Direct comparisons to published experiments are provided to assess the accuracy of the proposed load distribution methodology. Example analyses with flexible ring gear rims are performed indicating that ring gear flexibility could influence gear mesh-level and planetary gear set system-level behaviors. Influence of spline supporting a ring gear is also investigated revealing that positions of planet branches with respect to external splines could influence ring deflections and resultant gear mesh load distributions.

Copyright (c) 2018 by ASME
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