First, a mathematical model for the optimal design is set up, then a computer programme executing this model is compiled.

首先，建立了优化设计的数学模型，然后编制了实施这个数学模型的计算机程序。

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This paper discussed the designing method of damage tolerance, gave calculation formulas of reliability in crackle, and finally, for an example, optimal design of the pressure vessel has been set up.

论述了损伤容限设计的方法，给出了压力容器含裂纹的可靠度计算公式，并举例确定了某压力容器的最佳设计。

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The latter builds parameter analysis file for optimal circulation based on APDL and ANSYS commands, then executes the analysis processing in opt and checks up the serials of optimal design.

后者利用APDL参数技术和ANSYS命令创建参数分析文件，用于优化循环分析文件，再进入优化设计器opt执行分析过程，最后检验优化设计序列。

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