Newton Raphson method was introduced into the FEM analysis model in order to ensure that the solution of each iterativestep would converge by means of satisfying some restrictive condition.
在有限元分析模型中引入了牛顿迭代法，以使每一时间步长的末端温度满足某一限制条件而平衡收敛。
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In this paper, facing the convergent problem of plastic forming using large incremental step, we deduced the iterative formula used in analysis of elastic-plastic plate forming finite element method.
Using a moving time window in the MOT method, to eliminate the iterative calculation which has no contribution to the present time step, in this way, accelerate effect was obtained.