Based on sealed pipe tee on-site construction mechanical properties calculation,in combination with the test pressure of the plugging process and contact problems,the calculation results of data was analyze in order to establish the optimization function,carry out multi design variables optimization to achieve optimal design of the existing structure,and thus automatically re-generate optimization model,and complete the mechanical properties calculation and the strength analysis of the optimization model.The research results show that the optimized solution not only saves raw materials,also cuts maximum stress down by 29％.At the same time,the methods and results of the study can be used for the evaluation and optimization of the safety of the pipeline construction,and have guiding significance on site production.%结合封堵过程的试验压力、接触等问题,在完成封堵三通现场施工力学性能计算的基础上,对计算结果进行数据分析,建立优化函数,进行多设计变量优化,实现现有结构的最优设计,并重新自动生成优化模型,完成优化模型力学性能计算与强度分析.研究结果表明:优化后的方案不仅节省原料,还使得最大应力下降了29％.该研究方法与结果可用于管道施工的安全评价与优化,对现场生产具有指导意义.
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