Parametric Modeling And Finite Element Contact Analysis Of Meshing Gears

The rapid development of wind power industry lead to the prosperity of wind power equipment manufacturing industry. As the core component of wind turbine, the gaerbox is received much concern from related industries and research institution both at home and abroad. However, due to the domestic research of gearbox for wind turbine, which mainly relied on the introduction of foreign technology. Therefore,it is urgent need to carry out independent development and research on MW wind power gaerbox, and truly master the design and manufacturing technology in order to achieve the goal of localization.This article takes the gear transmission system in the gearbox of wind turbine generator as the research object, through finite element contact analysis in-depth study of contact stress.Firstly, through the Automation Gateway plug to achieve Pro/ENGINEER secondary development function, which achieve the parametric modeling of a gear and shaft parts, and could get the designed parts quickly.Secondly, through Pro/ENGINEER secondary development function which achieved by Visual Basic6.0to achieve the parametric assembly technology of a two parallel wind power transmission gearbox. Parameterizing each component and transfering them to the assembly window to assemb through the multi-window operation of VB could get gear assembly drawing quickly.Thirdly, to determine the use of ANSYS finite element contact analysis of reasonable parameters and unit scale. The analysis of two cylinders of the Hertz contact. Also completed a corresponding state of the finite element contact analysis, through adjusting the parameters related to the finite element, the results obtained with the classical Hertz contact analysis of the results of theoretical calculations are basically the same, provide the basis for the analysis of the gearcontact stress.Finally, transfer the error-free assembled gears obtained from the Pro/ENGINEER, making the contact analysis in ANSYS, the obtained results of contact stress and finite element analysis of two cylinders are basically the same. Providing foundation for further analyze the meshing gear when assembly errors exist contact stress.