Investigation of dynamic behavior of planet gears in planetary gear sets for three-axis driving

Planetary gear set is widely used in hybrid vehicle as a power distribution system or in electric vehicle as a high reduction system. Although it has many advantages, its noise and vibration problem has emerged. There have been many reports dealing with two-axis driving or displacement of planet gea...

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Autores principales:	Masao NAKAGAWA, Mohamed Ali BEN ABBES, Toshiki HIROGAKI, Eiichi AOYAMA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2016
Materias:	instantaneous center gear hybrid vehicle planetary gear set torque measurement Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/d8d67079efca42668f10e3f812f9c186
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spelling	oai:doaj.org-article:d8d67079efca42668f10e3f812f9c1862021-11-26T06:35:12ZInvestigation of dynamic behavior of planet gears in planetary gear sets for three-axis driving2187-974510.1299/mej.15-00338https://doaj.org/article/d8d67079efca42668f10e3f812f9c1862016-02-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/3/1/3_15-00338/_pdf/-char/enhttps://doaj.org/toc/2187-9745Planetary gear set is widely used in hybrid vehicle as a power distribution system or in electric vehicle as a high reduction system. Although it has many advantages, its noise and vibration problem has emerged. There have been many reports dealing with two-axis driving or displacement of planet gear under its condition, but we can see no report dealing with about three-axis driving. As first novel point in the present report, three-axis driving is tested on the original test stand. As second novel point in this report, characteristic of instantaneous center of the planet gear is investigated based on mechanism. Planet gear rotates and revolves at the same time during working in three-axis driving condition. Instantaneous center was defined according to velocity distribution of planet gear or superposition of velocity distribution of rotation and that of revolution with simple lumped model. Tangential speed is equal to zero at the instantaneous center, and planet gear rotates around it instantaneously. Instantaneous center moves according to the driving condition or input ratio between two inputs which input from ring gear and carrier. It is very important to consider generated inertia force due to rotation around instantaneous center, to design planetary gear set for three-axis driving. The meshing force between planet gear and ring gear and the meshing force between planet gear and sun gear have same trend and close value but they are not same value, and absolute values of ring-planet meshing force are larger than those of sun-planet meshing force. It is also confirmed that the torques around planet gear are balanced in steady condition, considering both transmission and rotation.Masao NAKAGAWAMohamed Ali BEN ABBESToshiki HIROGAKIEiichi AOYAMAThe Japan Society of Mechanical Engineersarticleinstantaneous centergearhybrid vehicleplanetary gear settorque measurementMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 3, Iss 1, Pp 15-00338-15-00338 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	instantaneous center gear hybrid vehicle planetary gear set torque measurement Mechanical engineering and machinery TJ1-1570
spellingShingle	instantaneous center gear hybrid vehicle planetary gear set torque measurement Mechanical engineering and machinery TJ1-1570 Masao NAKAGAWA Mohamed Ali BEN ABBES Toshiki HIROGAKI Eiichi AOYAMA Investigation of dynamic behavior of planet gears in planetary gear sets for three-axis driving
description	Planetary gear set is widely used in hybrid vehicle as a power distribution system or in electric vehicle as a high reduction system. Although it has many advantages, its noise and vibration problem has emerged. There have been many reports dealing with two-axis driving or displacement of planet gear under its condition, but we can see no report dealing with about three-axis driving. As first novel point in the present report, three-axis driving is tested on the original test stand. As second novel point in this report, characteristic of instantaneous center of the planet gear is investigated based on mechanism. Planet gear rotates and revolves at the same time during working in three-axis driving condition. Instantaneous center was defined according to velocity distribution of planet gear or superposition of velocity distribution of rotation and that of revolution with simple lumped model. Tangential speed is equal to zero at the instantaneous center, and planet gear rotates around it instantaneously. Instantaneous center moves according to the driving condition or input ratio between two inputs which input from ring gear and carrier. It is very important to consider generated inertia force due to rotation around instantaneous center, to design planetary gear set for three-axis driving. The meshing force between planet gear and ring gear and the meshing force between planet gear and sun gear have same trend and close value but they are not same value, and absolute values of ring-planet meshing force are larger than those of sun-planet meshing force. It is also confirmed that the torques around planet gear are balanced in steady condition, considering both transmission and rotation.
format	article
author	Masao NAKAGAWA Mohamed Ali BEN ABBES Toshiki HIROGAKI Eiichi AOYAMA
author_facet	Masao NAKAGAWA Mohamed Ali BEN ABBES Toshiki HIROGAKI Eiichi AOYAMA
author_sort	Masao NAKAGAWA
title	Investigation of dynamic behavior of planet gears in planetary gear sets for three-axis driving
title_short	Investigation of dynamic behavior of planet gears in planetary gear sets for three-axis driving
title_full	Investigation of dynamic behavior of planet gears in planetary gear sets for three-axis driving
title_fullStr	Investigation of dynamic behavior of planet gears in planetary gear sets for three-axis driving
title_full_unstemmed	Investigation of dynamic behavior of planet gears in planetary gear sets for three-axis driving
title_sort	investigation of dynamic behavior of planet gears in planetary gear sets for three-axis driving
publisher	The Japan Society of Mechanical Engineers
publishDate	2016
url	https://doaj.org/article/d8d67079efca42668f10e3f812f9c186
work_keys_str_mv	AT masaonakagawa investigationofdynamicbehaviorofplanetgearsinplanetarygearsetsforthreeaxisdriving AT mohamedalibenabbes investigationofdynamicbehaviorofplanetgearsinplanetarygearsetsforthreeaxisdriving AT toshikihirogaki investigationofdynamicbehaviorofplanetgearsinplanetarygearsetsforthreeaxisdriving AT eiichiaoyama investigationofdynamicbehaviorofplanetgearsinplanetarygearsetsforthreeaxisdriving
_version_	1718409811409764352

Investigation of dynamic behavior of planet gears in planetary gear sets for three-axis driving

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