第二，我们研究了变量有上界的退化线性规划问题。
Secondly, we consider the degenerate linear programming problem with upper bounded variable constrained.
本文以拉压应力损伤因子为内变量，采用混凝土塑性损伤模型，分析了坝体在地震荷载作用下的刚度退化以及在多维应力状态下拉应力引起的损伤破坏。
In this paper, the stiffness degradation and damage failure in concrete dams subjected to strong ground motion are simulated by plastic-damage model based on damage index variable.
当不考虑基本变量和极限状态的模糊性时，它即退化为随机有限元可靠度分析方法。
If the fuzziness of the basic variables and the limit states are not considered, the method will turn into the normally used stochastic finite element reliability analysis method of slope stability.
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