中国机械工程2017，Vol.28Issue(17)：2024-2028,5.DOI:10.3969/j.issn.1004-132X.2017.17.002
考虑牙间均载的拉杆螺纹连接多目标优化
Multi-objective Optimization of Threaded Connection on Tension Rods for a Uniform Load Distribution between Teeth
摘要
Abstract
For improving the serving life of the threaded connection,an elastic-plastic contact finite element method was used for analyzing the stress distribution of the connecting threads.After that, the parametric modeling technique was used for establishing the multi-objective optimization model where the load distribution uniform and the stress peak values were considered.This model was then solved by the radial basis function (RBF)neural network method and the elitist non-dominated sorting GA (NSGA-Ⅱ).The numerical results indicate that compare with the original design,the non-uni-form rates of load distribution between the teeth in the optimized design are reduced by 13.6%,and the maximum of equivalent stresses is dropped by 6.9%,and the peak values of the first principal stress are cut down by 11 .5%.关键词
螺纹连接/多目标优化/有限元分析/遗传算法Key words
threaded connection/multi-objective optimization/finite element analysis(FEA)/ge-netic algorithm(GA)分类
机械制造引用本文复制引用
林谢昭,王福振..考虑牙间均载的拉杆螺纹连接多目标优化[J].中国机械工程,2017,28(17):2024-2028,5.基金项目
福建省高端装备数字化设计与制造创新项目(036681 ) （036681 ）
福建省自然科学基金资助项目 (2016J01227, 2017J01692) （2016J01227, 2017J01692）
