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。
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。
The upper bound method of limit analysis can be used for the stability analysis of reinforced earth; the internal works on the slip plane is the crux of the stability analysis.
将极限分析上限法用于加筋土结构物稳定性分析的关键是滑动面上内力功如何计算的问题。
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