【作者】 唐丽；

【导师】 巩云鹏；

【作者基本信息】 东北大学 ， 机械设计及理论， 2011， 硕士

【摘要】 风电产业的迅速发展对风力发电机组运转的稳定性和可靠性提出了很高的要求,风电齿轮箱作为风电机组的核心部件,倍受国内外风电相关行业和研究机构的关注。但由于国内风电齿轮箱的研究起步较晚,技术薄弱,特别是兆瓦级风电齿轮箱,主要依靠引进国外技术。因此,急需对兆瓦级风电齿轮箱进行自主开发研究,真正掌握风电齿轮箱设计制造技术,以实现风机国产化目标。本文以一对风电增速齿轮箱齿轮传动系统为研究对象,通过接触有限元分析深入研究了齿轮的接触应力,并为齿轮有误差装配条件下接触应力的求解提供了依据。首先,通过Automation Gateway插件实现了Visual Basic6.0对Pro/ENGINEER的二次开发,从而实现了齿轮类,轴类零件的参数化建模,可以快速得到所设计的零件。其次,利用Pro/ENGINEER的二次开发功能实现了二级平行轴齿轮传动系统的参数化装配技术,通过Visual Basic6.0的多窗口操作,对每个元件进行参数化,进入装配窗口进行装配,可以快速得到齿轮系统的装配图。然后,为了确定利用ANSYS进行有限元接触分析的合理参数设置及单元划分尺度,进行两个圆柱的Hertz接触分析,同时完成了对应状态的有限元接触分析,通过调整有限元相关设置参数,得到的接触分析结果与经典Hertz理论计算的结果基本一致,为利用有限元进行齿轮的接触应力分析奠定了基础。最后,将从Pro/ENGINEER得到的参数化无误差条件下装配齿轮,导入ANSYS中进行接触分析,得到接触应力的结果与两圆柱有限元分析的结果基本一致。为进一步分析齿轮存在制造装配误差啮合时的接触应力奠定了基础。更多还原

【Abstract】 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.更多还原