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首先,对旋转对称支承板机座进行了参数化建模与有限元分析,得到了相关参考观测点的变形量,从而得到了机座的径向刚度和扭转刚度。其次,通过循环变换支承板4个主要参数(长度、宽度、厚度、角度),得到了4个主要参数与机座径向刚度和扭转刚度之间的变化关系,并且分析了4个主要参数对刚度的重要性。随着支承板倾角、宽度、厚度的增加机座的径向刚度和扭转刚度而增大,随着支承板长度的增加而减小,并且从各自的变换趋势来看,长度和宽度方向接近线性关系,角度和厚度方向接近非线性关系。对机座刚度影响最大的是支承板的宽度,其次是角度、厚度,而影响最小的是支承板的长度。
Firstly, parametric modeling and finite element analysis are carried out on the base of rotating symmetrical bearing plate. The deformation of the reference point is obtained, and the radial stiffness and torsional stiffness of the base are obtained. Secondly, four major parameters (length, width, thickness and angle) of the support plate are obtained by cyclic transformation. The relationship between the four main parameters and the radial rigidity and torsional stiffness of the machine frame is obtained. And four main parameter pairs The importance of stiffness. With the increase of bearing plate inclination, width and thickness, the radial rigidity and torsional stiffness of the machine base increase, and decrease with the increase of the length of the bearing plate, and the length and width direction are close to linear Relationship, angle and thickness direction close to non-linear relationship. The greatest impact on the stiffness of the support plate is the width of the support plate, followed by the angle, thickness, and the least affected is the length of the support plate.