The sectional optimization theory of membrane structure under size, stress and displacement constraints is developed. A special optimization module is developed by using PCL language of MSC.
发展了膜结构在尺寸、应力和位移约束下的截面优化理论，并利用MSC.Patran提供的PCL语言，开发了专用的优化模块。
参考来源 - 膜结构截面优化的理论及其在MSC.Nastran上的软件二次开发Plate and shell structures are broad using in engineering. Sectional optimization and program development of them are very necessary.
板壳结构是工程上应用最为广泛的结构之一,对其进行截面优化并开发相应软件具有重要意义。
参考来源 - 基于响应面法的板壳结构优化及在Strand7软件上二次开发·2,447,543篇论文数据，部分数据来源于NoteExpress
The conclusion is that, compared with the parallel-searching and the linear combination methods, the sectional optimization method is more flexible and better in convergence.
通过与并行寻优、线性组合方法的比较，得出了分级优化法具有灵活性及收敛性好等特点的结论。
Sectional optimization of reservoir: After the optimization, put into production directly without remove the pipe string;
储层分段改造：改造之后不动管柱直接投产；
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