scholarly journals Finite Element Analysis and Tooth Profile Modification Study on Traction Gear of High Speed and Heavy Load Locomotive

2015 ◽  
Vol 9 (1) ◽  
pp. 900-909
Author(s):  
Xiaochun Shi ◽  
Weidong He
Keyword(s):  
Finite Element ◽  
High Speed ◽  
Tooth Profile ◽  
Element Analysis ◽  
Heavy Load ◽  
Profile Modification ◽  
Tooth Profile Modification ◽  
Parameterized Model ◽  
Design Requirements ◽  
Transmission Gear

Base on the characteristics of high-speed and heavy-load locomotive traction gear, a pre-grinding hob was designed which increased the thickness of the dangerous tooth root section as much as possible. The deformation and stress of the traction gears were calculated through the parameterized model established by finite element method. The tooth profile modification was implemented considering three locomotive working conditions including starting, sustain, and rapid operation. Finally, the related tests verified that the optimized transmission gear was in accordance the design requirements, the effect was good.

Static/Dynamic Contact Finite Element Analysis for Tooth Profile Modification of Helical Gears

2011 ◽  
Vol 86 ◽  
pp. 384-388
Author(s):  
Yong Jun Wu ◽  
Jian Jun Wang ◽  
Qin Kai Han
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Vibration Reduction ◽  
Dynamic Contact ◽  
Tooth Profile ◽  
Element Analysis ◽  
Helical Gears ◽  
Profile Modification ◽  
Tooth Profile Modification ◽  
Static Contact

A precise approach for the tooth profile modification (TPM) of helical gear is presented in the paper based on the static contact finite element analysis (FEA). The high-precision finite element model of helical meshing gear pairs is established. The type and amount of TPM are accurately determined by the static contact FEA results. The dynamic contact simulations of helical gears with and without tooth modification are investigated to estimate the vibration reduction effect of the TPM. Moreover the numerical simulations are compared with the experimental results. Both results show that the proposed precise TPM of helical gears is effective on vibration reduction around the working load, and the dynamic contact simulation is effective on estimating the vibration reduction influence of the TPM.

Finite Element Analysis for Tooth Profile Modification of Gear-Box of Tracklayer

2010 ◽  
Vol 156-157 ◽  
pp. 621-624
Author(s):  
Yan Wang ◽  
Ji Sheng Ma ◽  
Hui Yong Deng ◽  
Hai Ping Liu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Contact Stress ◽  
Transmission Error ◽  
Tooth Profile ◽  
Element Analysis ◽  
Profile Modification ◽  
Tooth Profile Modification ◽  
Static Contact ◽  
Gear Box

The quasi-static contact finite element analysis of meshing gear of gear-box is computed by using MSC.Marc software, then transmission error and surface contact stress of meshing gear are computed in different tooth profile modification methods. Due to the large load fluctuation of tracklayer, the target of tooth profile modification is suggested, which is to minimize the peak value of tooth contact stress to the full, and not to increase the transmission error fluctuation of gear system.

scholarly journals The Optimal Design Method and Standardized Mathematical Model of Tooth Profile Modification of Spur Gear

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Wenjie Mei ◽  
Jingzhou Na ◽  
Fan Yang ◽  
Guike Shen ◽  
Jiawei Chen
Keyword(s):  
Mathematical Model ◽  
Spur Gear ◽  
Tooth Profile ◽  
Element Analysis ◽  
Profile Modification ◽  
Transmission Errors ◽  
Gear Drive ◽  
Tooth Profile Modification ◽  
Modification Method ◽  
Meshing Process

The paper reports a tooth profile modification method of spur gear. After establishing a standardized mathematical model for optimized tooth profile and simulating meshing process with ANSYS finite element analysis, we obtained 625 groups of gear models with different modification parameters. The group with minimum transmission errors owns the optimal parameters. Genetic algorithm was adopted in the entire process for the purpose of reducing the variation of transmission errors in meshing process. The arc and parabolic modification were doing the same processing. After comparing the transmission errors fluctuation produced by the meshing process of gear of nonmodification with arc modification and parabolic modification, we found that the best modification effects of arc modification and parabolic modification were both reduced by 90%. The modification method makes the gear drive process more stable and efficient, and it is also promising in general application for gear drive.

Design Principle’s Research of Traction Gear’s Modification Slotting Cutter of High-Speed Locomotive

2010 ◽  
Vol 139-141 ◽  
pp. 813-818
Author(s):  
Cong Gui Chen ◽  
Liang Bin Hu ◽  
Bi Wen Li ◽  
Sheng Li
Keyword(s):  
High Speed ◽  
Tooth Profile ◽  
Angle Error ◽  
Profile Angle ◽  
Profile Modification ◽  
Technical Requirements ◽  
Modification Process ◽  
Tooth Profile Modification ◽  
Curve Fit ◽  
Analysis Theory

According to the traditional tooth profile, modification process cannot meet the traction gear’s technical requirements of the high-speed locomotive. A new way for the tooth profile modification technology was provided in the paper. The slotting profile modification process was proposed, the formulating methods of the tooth profile modification K diagram was introduced, modification curve fit as the sections of involutes, the modification profile angles of slotting cutter corresponding sections of involutes was deduced using the profile angle error analysis theory and the tooth profile of modification slotting cutter precision was designed. The feasibility and advantages of modification slotting cutter were validated by examples, which indicates the widely use of this technology in high-speed locomotive traction gear.

Dynamic Modeling and Analysis of Tooth Profile Modification for Multimesh Gear Vibration

2008 ◽  
Vol 130 (12) ◽  
Author(s):  
Gang Liu ◽  
Robert G. Parker
Keyword(s):  
Finite Element ◽  
Closed Form Solution ◽  
Form Solution ◽  
Tooth Profile ◽  
Modeling And Analysis ◽  
Profile Modification ◽  
Tooth Profile Modification ◽  
Proposed Model ◽  
Nonlinear Analytical Model ◽  
The Individual

This work studies the effects of tooth profile modification on multimesh gearset vibration. The nonlinear analytical model considers the dynamic load distribution between the individual gear teeth and the influence of variable mesh stiffnesses, profile modifications, and contact loss. The proposed model yields better agreement than two existing models when compared against nonlinear gear dynamics from a finite element/contact mechanics benchmark. These comparisons are made for different loads, profile modifications, and bearing stiffness conditions. This model captures the total and partial contact losses demonstrated by finite element. Perturbation analysis based on the proposed model finds approximate frequency response solutions for the case of no total contact loss due to the optimized system parameters. The closed-form solution is compared with numerical integration and provides guidance for optimizing mesh phasing, contact ratios, and profile modification magnitude and length.

Based on ANSYS Planetary Gear Ransmission Design Analysis

2011 ◽  
Vol 314-316 ◽  
pp. 1218-1221
Author(s):  
Hao Min Huang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Contact Stress ◽  
Planetary Gear ◽  
Design Analysis ◽  
Ansys Software ◽  
Element Analysis ◽  
Planet Gear ◽  
Gear Contact ◽  
Transmission Gear

Conventional methods of design to be completed ordinary hydraulic transmission gear gearbox design, but for such a non-planet-rule entity, and the deformation of the planet-gear contact stress will have a great impact on the planet gear, it will be very difficult According to conventional design. In this paper, ANSYS software to the situation finite element analysis, the planetary gear to simulate modeling study.

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