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圆柱齿轮运转时,单齿对啮合和双齿对啮合交替进行,由于受载弹性变形及热变形的存在,交替点处将产生干涉现象。为了进行轮齿运转过程中不同啮合位置的耦合热弹接触有限元分析,在计算程序中引入了前处理和后处理程序,诸如实现网格自动划分、自动绘制变形前后的网格图以及局部座标系的旋转变换等。此外,还分析了不同啮合位置的真实热弹变形及其变化规律,以便确定理想修形曲线。
During the operation of the spur gear, the meshing of single teeth and the meshing of double teeth alternately take place. Due to the elastic deformation and thermal deformation of the bearing, the interference occurs at alternate points. In order to carry out the finite element analysis of the coupled thermo-elastic contact in different meshing positions during the gear tooth operation, the preprocessing and postprocessing programs were introduced into the calculation program, such as automatic meshing, automatic meshing before and after deformation, Standard rotation conversion. In addition, the actual deformation of the thermo-elastic deformation and its variation at different meshing positions are also analyzed in order to determine the ideal shape curve.