Research on Dynamic Simulation and Analysis of NGW Planetary Gear Train Based on ANSYS

2013 ◽  
Vol 834-836 ◽  
pp. 1480-1483
Author(s):  
Yu Bin Hou ◽  
Shou Bo Jiang
Keyword(s):  
Dynamic Analysis ◽  
Dynamic Simulation ◽  
Traditional Method ◽  
Planetary Gear ◽  
Gear Train ◽  
Planetary Gear Train ◽  
Simulation Results ◽  
Assembly Models

The dynamic simulation and analysis of NGW planetary gear train was researched in this paper. The working types of NGW planetary gear train were discussed and the applying of boundaries and loads were established. Then the assembly models were established in ANSYS and a dynamic simulation was performed. Finally 5 groups of NGW parameters were taken to carry out a dynamic analysis. The results obtained by FEM were compared with those calculated by traditional method. The simulation results show that the gaps between FEM and traditional method are stable. The research provides a reference for the strength checking and design of NGW planetary gear train.

Dynamic Analysis and Simulation of a New Steering Mechanism for Point-the-Bit Rotary Steerable System

2013 ◽  
Vol 712-715 ◽  
pp. 1401-1405
Author(s):  
Yuan Zhi Li ◽  
Wen Tie Niu ◽  
Hong Tao Li ◽  
Shuai Li
Keyword(s):  
Dynamic Analysis ◽  
Dynamic Simulation ◽  
Design Procedure ◽  
Planetary Gear ◽  
Horizontal Wells ◽  
Gear Train ◽  
Force Analysis ◽  
Drilling Tools ◽  
Steering Mechanism ◽  
Extended Reach Drilling

In oilfield exploitation, automatically directional steering can only be achieved with rotary steerable system (RSS). The designed well trajectories have become more complicated e.g. horizontal wells, extended reach drilling wells and 3D multi-target wells. To drill these complicated wells, new drilling tools are urgently needed. This paper proposed a new steering mechanism for point-the-bit RSS. The new steering mechanism uses a set of universal joints to avoid the high alternative strain on drilling mandrel, and it uses a specific eccentric planetary gear train to offset the drilling mandrel to achieve directional steering. Design procedure, Solid modeling, Force analysis and dynamic simulation have been discussed for further dynamic analysis towards the confirmation of the steering performance.

scholarly journals Geometric Design and Kinematics Analysis of Non-Circular Planetary Gear Train with Cycloid Profile 

2021 ◽  
Vol 31 (3) ◽  
pp. 105-112
Keyword(s):  
Numerical Calculation ◽  
Planetary Gear ◽  
Geometric Design ◽  
Gear Train ◽  
Variable Speed ◽  
Kinematics Analysis ◽  
Planetary Gear Train ◽  
Mathematical Equations ◽  
Simulation Results ◽  
Set Up

This research presents a method to design a non-circular planetary gear. Therein the satellite gear block consists of eccentric cycloidal gear and elliptical cycloidal gear, which have been given. The mathematical equations of two ring non-circular gears are set up according to the gearing theory considering the undercutting conditions. A numerical calculation program was written in Matlab to calculate and dynamically analyze this planetary gear. The examples presented in the paper clarified the design steps of the method. The simulation results show that the non-circular cycloidal gear can overcome the irregular tooth phenomenon on the traditional non-circular involute gear, and when it is necessary to design infinitely variable speed converters with large amplitudes, the coefficient λ should be adjusted rather than the coefficient μ.

Dynamic Characteristics of Double Helical Planetary Gear Train With Tooth Friction

2015 ◽  
Author(s):  
Fengxia Lu ◽  
Rupeng Zhu ◽  
Haofei Wang ◽  
Heyun Bao ◽  
Miaomiao Li
Keyword(s):  
Degrees Of Freedom ◽  
Sliding Friction ◽  
Planetary Gear ◽  
Gear Train ◽  
Variable Step Size ◽  
Step Size ◽  
Planetary Gear Train ◽  
Gear Mesh ◽  
Meshing Stiffness ◽  
Nonlinear Dynamics Model

A new nonlinear dynamics model of the double helical planetary gear train with 44 degrees of freedom is developed, and the coupling effects of the sliding friction, time-varying meshing stiffness, gear backlashes, axial stagger as well as gear mesh errors, are taken into consideration. The solution of the differential governing equation of motion is solved by variable step-size Runge-Kutta numerical integration method. The influence of tooth friction on the periodic vibration and nonlinear vibration are investigated. The results show that tooth friction makes the system motion become stable by the effects of the periodic attractor under the specific meshing frequency and leads to the frequency delay for the bifurcation behavior and jump phenomenon in the system.

Specific Conditions of A I ¯ -Planetary Gear Train

2019 ◽  
pp. 27-30
Author(s):  
Kiril Arnaudov ◽  
Dimitar Petkov Karaivanov
Keyword(s):  
Planetary Gear ◽  
Gear Train ◽  
Planetary Gear Train

Examples for Application of A I ¯ -Planetary Gear Train

2019 ◽  
pp. 187-204
Author(s):  
Kiril Arnaudov ◽  
Dimitar Petkov Karaivanov
Keyword(s):  
Planetary Gear ◽  
Gear Train ◽  
Planetary Gear Train

Optimization of A I ¯ -Planetary Gear Train

2019 ◽  
pp. 173-180
Author(s):  
Kiril Arnaudov ◽  
Dimitar Petkov Karaivanov
Keyword(s):  
Planetary Gear ◽  
Gear Train ◽  
Planetary Gear Train
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