The deformation of rolled piece in conjugate deep cut pass is simulated by finite element method. The error of simulated result is less than 1%.
用有限元法对共轭切深孔中轧件的变形进行了计算机模拟，模拟计算结果误差小于1%。
The discontinuous finite element method is extended to solve the direct problem, and then the conjugate gradient method is used to solve the inverse problem by optimizing the objective function.
正问题采用间断有限元法求解，反问题的解则在正问题的基础上通过共轭梯度法得到。
The discontinuous finite element method is extended to solve the direct problem, and then the conjugate gradient method is used to solve the inverse problem by optimizing the objective function.
正问题采用间断有限元法求解，反问题的解则在正问题的基础上通过共轭梯度法得到。
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