薄壁箱型升降塔的稳定性分析  

Stability Analysis of Thin-walled Box Lifting Tower

作　　者：陈玉振[1] 岳振兴[1] 李顺芬[1] 

机构地区：[1]南京电子技术研究所,南京210013

出　　处：《机械工程师》2008年第8期71-72,共2页Mechanical Engineer

摘　　要：利用计算机进行有限元法求解稳定性问题是现代稳定计算的发展趋势。文中利用ANSYS软件对升降塔的塔身进行了特征值屈曲分析,通过加筋前后载荷因子的对比,发现加筋可以显著提高薄壁构件的局部稳定性,加筋后结构满足给定载荷的稳定性要求。It＇s the developing trend to solve stability problem using computer and finite element. This text does the eigenvalue buckling analysis to a litting tower with ANSYS. Comparing the load factor of the tower with ribs and without ribs, we can find that ribs can improve the stability of the thin-walled metal observably, and the stability of the lifting tower is sufficient with ribs.

关 键 词：特征值屈曲分析 稳定性 有限元 升降塔 薄壁构件 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]