压力容器2024年2月58第41卷第2期收稿日期:2023-10-30修稿日期:2024-01-29基金项目:国家自然科学基金(12172296)doi:10.3969/j.issn.1001-4837.2024.02.008设计计算基于遗传算法的大型矩形压力容器刚强度优化设计张龙,尉成果,刘秉斌(中国空气动力研究与发展中心,四川绵阳621000)摘要:为了解决矩形压力容器承压能力较差、应力状态较复杂、结构优化设计难度高的难题,利用遗传算法可自适应调整搜索方向这一特性,开展了某矩形特征水洞试验段的刚强度优化设计。厘清了该工程问题的约束条件,开展了结构初步设计,采用手动迭代开展了结构优化设计;并在完成参数化建模与仿真、构建代理模型、建立优化设计流程的基础上,基于遗传算法开展了该水洞试验段的结构优化设计。该方法与初步设计结果相比,减重34.98%;与手动迭代优化设计结果相比,减重10.49%。关键词:矩形压力容器;优化设计;遗传算法;刚度;强度中图分类号:TH49;V259;O242.21文献标志码:AStiffnessandstrengthoptimizationdesignoflargerectangularpressurevesselsbasedongeneticalgorithmZHANGLong,YUChengguo,LIUBingbin(ChinaAerodynamicsResearchandDevelopmentCenter,Mianyang621000,China)Abstract:Inordertoresolutetheproblemsofpoorpressure-bearingcapacity,complexstressstateanddifficultiesinthestructuraloptimizationdesignofrectangularpressurevessels,usingthefeaturethatthegeneticalgorithmcanadjustsearchdirectionadaptively,thestiffnessandstrengthoptimizationdesignofarectangular-typewatertunneltestsectionwascarriedout.Firstly,theengineeringconstraintswereclarifiedandstructurepreliminarydesignwascompleted.Then,structureoptimizationdesignwascarriedoutthroughmanualiteration.Finally,aftercompletingtheparametricmodelingandsimulation,constructingsurrogatemodelandestablishingoptimizationdesignprocess,thestructureoptimizationdesignofthiswatertunneltestusinggeneticalgorithmwascarriedout.Thismethodreducesweightby34.98%comparedwiththepreliminarydesign,andby10.49%comparedwiththeoptimizationdesignthroughmanualiteration.Keywords:rectangularpressurevessel;optimizationdesign;geneticalgorithms;stiffness;strength0引言压力容器广泛应用于化工、航空航天、海洋工程、...