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Finite Element Analysis of Accelerating Gear of Wind-Power-Generating Under the EHL

Author: ZhangYanHua
Tutor: WangYouQiang
School: Qingdao Technological University
Course: Mechanical Design and Theory
Keywords: Wind turbines Gear EHL Finite Element Analysis ANSYS
CLC: TH132.41
Type: Master's thesis
Year: 2009
Downloads: 89
Quote: 0
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Abstract


The gear most important parts of the transmission of the growth of wind turbines box , so its structure to optimize the design and performance analysis is very necessary . In this paper, the growth rate of wind turbine gear parameter design and load analysis , multigrid method for solving the spur gear EHL problem in working condition , and the stress analysis of spur gear teeth in EHL state contact stress analysis and helical gears . 1 ) analysis, structural design and the actual conditions of the growth of wind turbine gears under load analysis , its EHL EHL problem engagement point at steady state numerical solution using the multi-grid method , and analysis of the impact of the oil film pressure and film thickness of the gear . 2 ) using Pro / E software gear shape and assembled model into ANSYS finite element analysis software , data interface , and the oil film pressure as load , establish the finite element model of gear Oil Whip pressure conditions , taking into account different engagement position loaded by gnawing on a tooth into the whole process of the rodents out tooth stress finite element analysis . Stress analysis to identify the dangerous parts of the introduction of the spur gear SN fatigue curve of the material , its fatigue life analysis . By taking into account the impact of the lubricant film pressure , so the results closer to the value of gear under real working conditions of stress . 3 ) three-dimensional model through the establishment of a helical gear contact , select different meshing position in ANSYS them contact stress , stress and compare different meshing point size , to find out when the tooth contact stress distribution law . Results overdrive gear design , improvement and optimization of a certain reference value .

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CLC: > Industrial Technology > Machinery and Instrument Industry > Mechanical parts and gear > The transmission mechanism > Meshing > Gears and gearing
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