The fan shaped grid with the element squarization was used to mesh the slice blade, and a dynamic equation was established for the slice blade according to Lagrange equation.

• 利用单元正方化扇形网格划分方法，对薄刀片划分单元，并应用拉格朗日方程建立了高速旋转圆盘薄片刀具薄刀片的动力学方程。