scholarly journals Predictions of input pinion floating on concentric face gear transmission static load sharing

2019 ◽  
Vol 28 ◽  
pp. 236-240
Author(s):  
Zhengminqing Li ◽  
Si Li ◽  
Xin Tang ◽  
Wenlin Zhu ◽  
Meijun Liao
Keyword(s):  
Static Load ◽  
Load Sharing ◽  
Gear Transmission ◽  
Face Gear

Study of the Dynamic Behavior of Face Gear Transmission System

2012 ◽  
Vol 268-270 ◽  
pp. 1063-1066 ◽  
Author(s):  
Zhi Wang ◽  
Qing Chen ◽  
Jia Chun Lin ◽  
Li Li Yang
Keyword(s):  
Mathematical Model ◽  
Static Load ◽  
Transmission System ◽  
Gear Transmission ◽  
Tooth Surface ◽  
Cyclic Loads ◽  
Face Gear ◽  
Static Loads ◽  
Gear Transmission System ◽  
The Mathematical Model

According to the gear meshing theory, the tooth surface equation of orthogonal face gear is derived and the mathematical model is established. Also the model was provided for simulating the bevel gear transmission system concerning the time variant stiffness and face gears errors under static load and cyclic loads. Through the model the computerized analysis of speed, angle and acceleration of gear real tooth surface could be accomplished. Rattle as discussed under condition of different static loads and the constant cyclic loads.

scholarly journals Quasistatic Load Sharing Behaviours of Concentric Torque-Split Face Gear Transmission with Flexible Face Gear

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Ning Zhao ◽  
Wang Li ◽  
Tao Hu ◽  
Hui Guo ◽  
Ruchuan Zhou ◽  
...  
Keyword(s):  
Load Sharing ◽  
Spur Gear ◽  
Gear Transmission ◽  
Analysis Model ◽  
Face Gear ◽  
Speed Reduction ◽  
Hybrid Finite Element ◽  
Lumped Parameter ◽  
Large Speed ◽  
Split Face

The concentric torque-split face gear transmission is mainly developed for the rotorcraft which demands high power density and large speed reduction ratio. This paper aims at predicting the load sharing behaviours among paths. An original quasistatic load sharing analysis model, which is a hybrid finite element/lumped parameter quasistatic gear model, is presented. The connection between spur gear and face gear is also established. A number of numerical simulations of load sharing behaviour analysis are conducted. The mechanism of uneven load sharing is revealed. It is observed that the support stiffness of pinion and backlash have significant influences on the load sharing behaviours of the concentric torque-split face gear transmission.

Note

2016 ◽  
Vol 230 (7-8) ◽  
pp. 1369-1369
Keyword(s):  
Mechanical Engineering ◽  
Static Load ◽  
Load Sharing ◽  
Engineering Science ◽  
Special Issue ◽  
Part C

Vineet Sahoo and Rathindranath Maiti Static load sharing by tooth pairs in contact in internal involute spur gearing with thin rimmed pinion. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 2016, Vol 230 No 4, pp 485–499. This article was inadvertently published early. It was intended for publication in the Special Issue ‘Power Transmissions with Gears’ edited by TC Lim, S Theodossiades and P Velex, Vol 230 No 7–8, published April 2016, where it is reprinted for the convenience of print readers only. Online readers please access this article as above at DOI 10.1177/0954406215618424 .

scholarly journals Floating Shaft Load Sharing Method for Face Gear Split Torque Transmission System

2013 ◽  
Vol 5 (12) ◽  
pp. 3386-3392 ◽  
Author(s):  
Ruifeng Wang ◽  
Ning Zhao ◽  
Li Tao ◽  
Qingjian Jia ◽  
Hui Guo
Keyword(s):  
Load Sharing ◽  
Transmission System ◽  
Face Gear ◽  
Torque Transmission ◽  
Split Torque

Static Load Sharing in Power-Split Planetary Gear Trains

2011 ◽  
Vol 86 ◽  
pp. 725-729
Author(s):  
Yang Li ◽  
Geng Liu ◽  
Guang Lei Liu
Keyword(s):  
Static Load ◽  
Planetary Gear ◽  
Load Sharing ◽  
Power Input ◽  
Gear System ◽  
Output Stage ◽  
Planetary Gear Trains ◽  
Power Split ◽  
Gear Trains ◽  
Planetary Gear System

Based on analyzing the mechanism of load sharing of power-split planetary gear trains, equivalent mesh errors are defined and introduced in this paper to take the deformations and manufacturing and assembling errors into account. The static equilibrium equation of planetary gear trains is established. Then the load sharing coefficients of a power-split planetary gear system are calculated. The results indicate that the load sharing of power input stage is worse than that of the power output stage in the power-split planetary gear system.

Evaluation of the Effect of Misalignment and Profile Modification in Face Gear Drive by a Finite Element Meshing Simulation

2003 ◽  
Author(s):  
Sandro Barone ◽  
Leonardo Borgianni ◽  
Paola Forte
Keyword(s):  
Finite Element ◽  
High Performance ◽  
Load Sharing ◽  
3D Models ◽  
Practical Experience ◽  
Contact Length ◽  
Face Gear ◽  
Design Standards ◽  
Element Analysis ◽  
Contact Algorithm

Face gear drives have many advantages over other cross axis transmissions especially in high performance applications. The lack of published design experience and design standards make their design difficult. This is mainly due to the complex geometries and to the lack of practical experience. For these reasons face gears have not been used for long. This work is aimed at investigating the behavior of a face gear transmission considering contact path under load, load sharing and stresses, for an unmodified gear set including shaft misalignment and modification on pinion profile. The investigation is carried out by integrating a 3D CAD system and a FEA code, and by simulating the meshing of pinion and gear sectors with three teeth, using contact elements and an automated contact algorithm. The procedures followed to create the 3D models of teeth in mesh are described and finite element analysis results discussed showing the differences between unmodified, modified and misaligned teeth. Results show the influence of load on theoretically calculated contact paths, contact areas, contact length and load sharing. The differences with respect to the ideal case are sometimes remarkable. Further developments are discussed.

Analysis of tooth stiffness of nutation face gear

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Guangxin Wang ◽  
Lili Zhu ◽  
Peng Wang
Keyword(s):  
Gear Transmission ◽  
Time Varying ◽  
Mesh Stiffness ◽  
Face Gear ◽  
Content Type ◽  
Gear Teeth ◽  
Meshing Stiffness ◽  
Single Tooth ◽  
Tooth Stiffness ◽  
External Face

Purpose The purpose of this paper is to obtain the single-tooth stiffness, single-tooth time-varying meshing stiffness and comprehensive meshing stiffness of the internal and external face gears and to analyze the influence of the modulus, pressure angle and tooth width of each face gear on the single-tooth stiffness of the gear in nutation face gear transmission. Design/methodology/approach From the point of view of material mechanics, the gear teeth of nutation face gear are simplified as spacial variable cross-section beams. The shear deformation of gear teeth, the bending deformation of tooth root and the additional elastic deformation caused by the base deformation are gotten by simplified trapezoidal section method, thus the stiffness of nutation face gear teeth can be obtained. The comparison with finite element method results verifies the rationality of simplified trapezoidal section method for calculating the tooth stiffness of nutation face gear. Findings The variation of stiffness of internal and external face gears along the meshing line and tooth height in nutation face gear transmission is studied, and the variation laws of single tooth stiffness, single-tooth-pair mesh stiffness and single tooth time-varying meshing stiffness of nutation face gear teeth are obtained. Originality/value Nutation face gear transmission is a new type of transmission. The stiffness of face gear teeth is analyzed, and the variation rules of single tooth stiffness, single-tooth-pair mesh stiffness and single tooth time-varying meshing stiffness of nutation face gear teeth are obtained, which not only enriches the research of nutation face gear transmission but also has important guiding significance for the application of nutation face gear in engineering practice.

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