工业技术创新2023，Vol.10Issue(6)：28-35,8.DOI:10.14103/j.issn.2095-8412.2023.12.004
受内压薄壁圆筒结构非线性屈曲分析及优化设计
Nonlinear Buckle Analysis of Thin-Walled Cylinder Under Inner Pressure and Optimization Design
夏津 1许自然 1李微微 1付丽强 1周典1
作者信息
摘要
Abstract
Aimed at the fuel tank under constant inner pressure load,it is simplified as thin-walled concentric cylinder structure.In this paper,the linear buckle analysis is conducted to get the first four eigenvalue and eigenvector.Then the nonlinear buckle analysis is carried out using the Riks method and the eigenvectors gotten from the previous step are treated as initial imperfection.The result of nonlinear analysis and experiment is very close.Next,parameterized model of thin-walled concentric cylinder is built using Python language to analyze the influence of fillet location and to optimize the cross section dimension of fillet.The bearing capability of structure is maximized with limited mass increase.The research result can be used in future nonlinear buckling analysis of thin-walled structure with great reference value and guiding function.关键词
薄壁同心圆筒/非线性失稳分析/结构优化Key words
thin-walled concentric cylinder/nonlinear buckle analysis/structure optimization引用本文复制引用
夏津,许自然,李微微,付丽强,周典..受内压薄壁圆筒结构非线性屈曲分析及优化设计[J].工业技术创新,2023,10(6):28-35,8.
