起重运输机械Issue(24)：47-54,8.
基于改进响应面法的桁架结构的可靠性分析
摘要
Abstract
Based on the in-depth study of the existing structural reliability calculation methods,in this paper,a structural reliability calculation method is proposed to improve the reliability analysis efficiency of truss structures.This analysis method works relying on the improved response surface method and aims to reduce the calculation workload of truss structure reliability,and uses APDL command flow to model the truss structure.In the complex structure where it is impossible or difficult to obtain the explicit expression between the function and its variables,an appropriate explicit function formula(RSF)which can be approximately equal to the original function is found by Matlab-Ansys data interaction,and the explicit function formula(RSF)was obtained,and then the Monte Carlo method-response surface analysis(MCS-RSM)hybrid simulation method and genetic algorithm(GA)of PDS module in Ansys were used respectively.The results show that it is easy to get explicit function formula(RSF)through Matlab-Ansys data interaction,and genetic algorithm(GA)can improve the calculation efficiency by more than 95%.关键词
塔式起重机/桁架结构/结构可靠度分析/Matlab-Ansys数据交互/改进的响应面法/MCS-RSM混合模拟法Key words
tower crane/truss structure/Structural reliability analysis/Matlab-Ansys data interaction/improved response surface method/MCS-RSM hybrid simulation method分类
机械制造引用本文复制引用
樊大宝,秦义校..基于改进响应面法的桁架结构的可靠性分析[J].起重运输机械,2023,(24):47-54,8.基金项目
山西省重点研发项目(201903D121067)、山西省"1331"工程重点学科建设基金(1331KSC) （201903D121067）
