摘 要 本文结合上界限法(Upper Bound Method)、有限差分法(Finite Difference Method)及 变分法 ( Variational )，来作为分析圆盘热锻粗问题的工具。
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limit analysis upper bound method 极限分析上限方法
the upper-bound method of limit 极限分析上界法
The unit pressure in backward extruding hollow billet has been calculated by the slip line method and the upper bound method.
本文对空心件反挤的单位挤压力，采用滑移线法和上限法进行了计算。
The three-dimensional limit method for slope stability analysis includes the upper bound method and the 3d limit equilibrium method.
边坡稳定三维极限分析方法有上限解和极限平衡两种方法。
A set of equations determining the neutral Angle, rolling torque and the slip condition in asynchronous rolling are derived by upper bound method.
应用上界法推导了一组可确定异步轧制时的中性角、轧制力矩和打滑条件的方程。
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