【摘要】 建立了导管架海洋平台结构的抗震模糊优化设计模型,对模型中的设计变量、目标函数和约束条件进行了模糊处理。用模糊优选法确定了约束边界的容差系数,并由改进的界限搜索方法求得了抗震模糊优化问题的最优解。以渤海油田BZ28-1储油平台为例进行了抗震模糊优化设计,计算结果显示,考虑模糊因素进行结构优化设计更具科学性和合理性。更多还原

【Abstract】 The model of structural fuzzy optimum design of earthquake-resistant for offshore jacket platforms was established.Design variables,object function and constrained conditions in the fuzzy optimum mode were considˉered with fuzzy method.The tolerance coefficient of the constrained condition boundary was determined with fuzzy optimization method.The fuzzy optimum solutions of fuzzy optimization problem of earthquake-resistant were obˉtained with bound search method.Structure fuzzy optimum design of earthquake-resistant was performed for Platform BZ28-1of Bohai Oil Field in China.The results show that the optimum design for jacket platforms considering fuzzy factors is more scientific and feasible.更多还原