Results 191 to 200 of about 1,223 (241)

Planetary gear train for robotics

IEEE International Conference on Mechatronics, 2005. ICM '05., 2005
A recursive matrix model concerning the geometric analysis, kinematics and dynamics of a Bendix wrist planetary bevel-gear train for robotics is established in this paper. The prototype of this mechanism is a three-degree-of-freedom system with seven links and four bevel gear pairs. Controlled by electric motors, three active elements of the robot have
openaire   +1 more source

Analysis of Dynamical Behavior of a Planetary Gear Train

2008
A lumped-parameter model of a single-stage planetary gear train, which included the factors of the floating motion of the centroid of the sun gear, time-varying mesh stiffness, gear meshing transmission errors and gear backlashes, was established. The non-dimensional motion equations of system were solved by the method of numerical integration.
Yanfeng Chen, Jing Jin, Xinyue Wu
openaire   +1 more source

Multi Objective Optimization of Planetary Gear Train

2010
In present work, multi-objective optimization of multi-stage planetary gear train is done. Optimization of multi-stage speed reducer is difficult due to involvement of integer variables. Minimizing surface fatigue life factor and minimization of volume of gear box are two conflicting objective functions under consideration.
Vipin K. Tripathi, Hiten M. Chauhan
openaire   +1 more source

the design of Planetary Gear Trains

SAE Technical Paper Series, 1959
<div class="section abstract"><div class="htmlview paragraph">THE usefulness of planetary gear trains and the engineering techniques necessary for optimum design are discussed in this paper. A simple method for calculating planetary gear ratios is described which can be used to determine quickly the potential usefulness of any planetary ...
openaire   +1 more source

Classification and Synthesis of Planetary Gear Trains

Volume 5b: Power Transmission and Gearing Conference, 2005
Application of topological graphs to analyze and synthesize planetary gear trains (PGTs) is an effective approach in searching for innovative planetary trains. A new graph representation and stratification standard are introduced firstly. Then three topological graphs of basic structure and four fundamental units (FUs) of PGTs are established as the ...
Long Quan Xue, You Ming Wang, Hui Wu Wang, Rong Chang Liu   +3 more
openaire   +1 more source

Displacement isomorphism of planetary gear trains

Mechanism and Machine Theory, 1994
Abstract This paper presents an efficient method for the identification of the displacement isomorphism of planetary gear trains with any number of gear pairs. For every plantary gear train, the corresponding displacement graph and rotation graph are used to characterize its kinematic structure.
openaire   +1 more source

Topological Synthesis of Planetary Gear Trains

Applied Mechanics and Materials, 2010
Application of topological graphs to analyze and synthesize planetary gear trains (PGTs) is an effective approach in searching for innovative planetary trains. Two topological graphs of basic structure and three fundamental units of PGTs are established as the basis of topological synthesis.
Ya Feng He, Qing Yu, You Ming Wang
openaire   +1 more source

The Homotopy Analysis for the Nonlinear Dynamics of Planetary Gear Trains

Volume 6: 14th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, 2018
In this paper, the homotopy analysis method (HAM) is proposed to study the nonlinear oscillators of planetary gear trains, in which the periodically time-varying mesh stiffness and gear backlash are included through a nonlinear displacement function. In contrast to the traditional perturbation methods, the HAM does not require a small parameter in the ...
Chao Xun, Sujuan Jiao, He Dai, Xinhua Long   +3 more
openaire   +1 more source

Modelling and control of cam-controlled planetary gear trains

International Journal of Modelling, Identification and Control, 2011
This work aims to perform the modelling and the motion control of cam-controlled planetary gear trains, such that their output motions can be fairly agreed with the required. First, the semi-closed-loop control is employed as the system architecture. Then the transfer functions of the motor with and without loading are established.
Wen-Hsiang Hsieh, I-Chih Li
openaire   +1 more source

Influence of the Sun Gear on the Dynamical Behavior of Planetary Gear Train

2009 International Conference on Intelligent Human-Machine Systems and Cybernetics, 2009
A lumped-parameter model of a single-stage planetary gear train was established. The influence of the rotary inertia of the sun gear on the dynamical behavior of planetary gear train was investigated. The steady responses were obtained by using numerical method.
Yan-feng Chen, Xin-yue Wu, Jing Jin
openaire   +1 more source