某雷达薄壁升降塔抗屈曲优化设计  

Buckling-resistance Ability Optimization of Thin-wall Telescopic Tower Structure in a Radar

作　　者：牟淑志[1] 杜春江[2] 

机构地区：[1]金陵科技学院机电学院,南京211169 [2]南京电子技术研究所,南京210039

出　　处：《机械工程师》2015年第3期66-67,共2页Mechanical Engineer

摘　　要：采用有限元法对某雷达薄壁升降塔系统的屈曲问题进行了分析,针对底部塔架抗屈曲能力弱的问题,基于多学科优化软件Isight和有限元分析工具ANSYS建立了优化模型,采用多岛遗传算法对其进行了优化,并对比分析了优化前后塔架结构的抗屈曲能力和刚强度变化,结果表明,在保证结构刚强度基本不变的前提下,优化后底部塔架的抗屈曲能力提高了26%。In order to improve the buckling-resistance ability of some radar thin-wall telescopic tower structure,finite element model was built and analyzed. In view of the weak portion at bottom of the tower structure,the FEA software ANSYS and the multi-discipline optimization software Isight are used to optimize the tower structure. Result shows that the buckling-resistance ability increases by 26% with the structure stiffness and strength unchanged.

关 键 词：升降杆 屈曲 优化 多岛遗传算法 

分 类 号：TH122[机械工程—机械设计及理论]