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Study on the Tooth Micro-Geometry Optimization of Planetary Gear for Drive Reducer
노승윤(Seung Yoon Noh),김래성(Lae Sung Kim),조성현(Sung Hyun Cho),류성기(Sung Ki Lyu) Korean Society for Precision Engineering 2017 한국정밀공학회지 Vol.34 No.6
A popular approach to optimize the performance of a gear transmission system is the modification of the gear tooth microgeometry, which includes the intentional removal of material from the gear teeth flanks, so that the shape is no longer a perfect involute. Such modifications compensate teeth deflections under load, and the resulting transmission error is minimized under a specific torque. Therefore, micro-geometry modifications can be applied on the involute (or profile) and lead of the gear teeth. In order to study the tooth micro-geometry optimization, this research selected a mass produced planetary gear type drive reducer as a prototype. The original design was modeled by a commercial software named Romax Designer, which analyzes and optimizes different types of gear power transmission systems. The series analysis results obtained reveal some anomalies that require modification. Based on the result, optimization and gear tooth modification were done to deal with the load distributions on gear tooth, gear durability problem, safety factor and bearing life problem. This thesis presents the outstanding performance improvement obtained after such optimization.
Study on Tooth Micro-geometry Optimization of Rear Gear Set in 2 Speed Planetary Gear Reducer
전민형,김래성,노승윤,진진,최창,류성기,Jeon, Min-Hyung,Kim, Lae-Sung,Noh, Seung-Yoon,Zhen, Qin,Choi, Chang,Lyu, Sung-Ki The Korean Society of Manufacturing Process Engine 2017 한국기계가공학회지 Vol.16 No.5
Gear tooth micro-geometry modifications include the intentional removal of material from the gear teeth flanks, so that the shape is no longer a perfect involute. If the gear shapes are perfect, then the gear tooth meshing is better, therefore the gears will transmit input torque in a more efficient manner without the generation of high frequency engine fluctuation noise. In this paper, we study tooth micro-geometry optimization of rear gear set in 2 speed planetary gear reducers. Analysis revealed problems which are need of modification. Based on the results, tooth micro-geometry was used to deal with load distributions on the rear gear set.
Study on Tooth Micro-geometry Optimization of Rear Gear Set in 2 Speed Planetary Gear Reducer
Min-Hyung Jeon(전민형),Lae-Sung Kim(김래성),Seung-Yoon Noh(노승윤),Qin Zhen(진진),Chang Choi(최창),Sung-Ki Lyu(류성기) 한국기계가공학회 2017 한국기계가공학회지 Vol.16 No.5
Gear tooth micro-geometry modifications include the intentional removal of material from the gear teeth flanks, so that the shape is no longer a perfect involute. If the gear shapes are perfect, then the gear tooth meshing is better, therefore the gears will transmit input torque in a more efficient manner without the generation of high frequency engine fluctuation noise. In this paper, we study tooth micro-geometry optimization of rear gear set in 2 speed planetary gear reducers. Analysis revealed problems which are need of modification. Based on the results, tooth micro-geometry was used to deal with load distributions on the rear gear set.