基于ANSYS的桁架悬臂梁结构优化设计.doc

文档介绍：
基于 ANSYS 的桁架悬臂梁结构优化设计
宋小艳,范勤**
(武汉科技大学冶金装备及控制教育部重点实验室,武汉 430081)
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摘要:本文采用 ANSYS 有限元分析软件参数化设计语言建立了桁架悬臂梁的有限元模型,
然后将桁架悬臂梁主梁和辅助梁的截面形状和尺寸作为设计变量,以悬臂梁的总体积为目标
函数,同时考虑桁架悬臂梁的强度、刚度以及截面尺寸等约束条件,采用零阶优化方法,对
桁架悬臂梁结构进行了优化。通过优化分析,得到了构件最合理的结构形状和尺寸。研究结
果表明,通过优化分析可以使桁架悬臂梁在满足工程要求的情况下,节省大量的工程材料。
关键词:ANSYS;悬臂梁;优化设计
中图分类号:TH213
The optimization design of trusses cantilever structure based
on ANSYS
SONG Xiaoyan, FAN Qin
(Key laboratory of metallurgical Equipment & Control Technology, Ministry of Education ,
Wuhan University of Science and Technology, WuHan 430081)
Abstract: This article uses the ANSYS finite element analysis software parametric design
language to establish truss finite element model of cantilever beam, then making the truss girder of
the cantilever beam and secondary beam cross section shapes and sizes as design variables, and
using the volume of the cantilever beam as target function, considering the strength, stiffness of
the beam truss and section size constraints, with zero order optimization method, to optimize the
girder cantilever beam structure. Through the optimization analysis, it obtained the reasonable
structure shape and size. The research results show that through the optimization analysis, the
truss cantilever beam can save a lot of engineering materials under the satisfying engineering
demand.
Keywords: ANSYS; can