Upper Bound and Lower Bound

The approach does not require apriori knowledge of the sign of the control gain and the upper bound and lower bound of dead zone model parameter to be known apriori.

该方法不要求的先验知识的控制增益的符号和的上界和下界的先验已知的死区模型参数。

The upper bound and lower bound theorem of classical plasticity theory and corresponding FEM is applied to analyze the bearing capacity of gravity dam for judging the stability of the dam.

应用结构塑性极限分析的上、下限定理及相应的有限元法分析重力坝的极限承载能力，以判断大坝的稳定性。

The optimal control design for the uncertain piecewise linear system has been converted to the problem of optimizing upper bound and seeking lower bound of the optimal control performance.

针对不确定分段线性系统，将最优控制设计问题转化成最优控制性能上界的优化问题及性能下界的求取问题。