As the study of cutting edge trimmer on the mechanism and shear principle, the cutting-edge steel plate shear finite element model has established by the finite element analysis software ANSYS/ LS-DYNA, and using explicit dynamic finite element algorithm to simulate the process of shearing. 通过对切边圆盘剪的工作原理和剪切机理的研究,用有限元分析软件ANSYS/LS-DYNA建立了切边圆盘剪剪切钢板的有限元模型,并采用显式动力学有限元算法对剪切过程进行了模拟分析。