矩形大开孔外压薄壁圆柱壳结构稳定性研究  

Study on the Stability of Thin-walled Cylindrical Shell Structure with Large Rectangular Openings under External Pressure

作　　者：段成红[1] 王志高 罗翔鹏[1] DUAN Cheng-hong;WANG Zhi-gao;LUO Xiang-peng(College of Mechanical and Electrical Engineering,Beijing University of Chemical Technology)

机构地区：[1]北京化工大学机电工程学院

出　　处：《化工机械》2024年第2期207-213,236,共8页Chemical Engineering & Machinery

摘　　要：以含矩形大开孔的薄壁圆柱壳结构为研究对象,利用ANSYS Workbench软件对其进行了屈曲分析,研究了不同的几何影响因素和材料参数与其临界失稳载荷和屈曲行为的关系。结果表明:结构的临界失稳载荷主要影响因素为壳体的径厚比;在弹性模量不变的情况下,临界失稳载荷与材料的屈服强度近似为线性关系;径厚比和材料参数的改变并不会改变结构的屈曲行为和趋势。In this paper,though taking thin-walled cylindrical shell with large rectangular openings as the object of research,the buckling analysis of the structure was carried out by using ANSYS Workbench software,including the relationship between critical instability load and buckling behavior and the various geometric influencing factors and material parameters.The results show that,the shell’s diameter to thickness ratio mainly influence the structure’s critical instability load.When the modulus of elasticity keeps constant,the relationship between the critical instability load and the yield strength of the material tends to the linearity.The variation in the diameter to thickness ratio and material parameters doesn’t change the structure’s buckling behavior and tendency.

关 键 词：薄壁圆柱壳 矩形大开孔 结构稳定性 屈曲分析 影响因素 

分 类 号：TQ050.3[化学工程]