基于有限元风机轮毂结构形状优化与模态分析  

Structural shape optimization and modal analysis for axial fan hub by finite element method

作　　者：许岚[1] 龚曙光[1] 陈艳萍 谢桂兰[1] 贺秋冬 曹蔚南 

机构地区：[1]湘潭大学机械工程学院CAE研究所,湘潭411105 [2]湘潭平安电气集团有限公司,湘潭411105

出　　处：《现代制造工程》2005年第12期3-6,共4页Modern Manufacturing Engineering

基　　金：国家自然科学基金资助(50475143);湖南省自然科学基金资助(03JJY3082)

摘　　要：利用有限元分析方法,针对风机轮毂结构,建立形状优化分析计算的数学模型,在满足给定条件下,将使轮毂结构的质量降低到最小和结构应力分布得到改善。在此基础上,对轮毂优化前、后的结构进行了模态分析比较,得到的结果显示,结构形状优化设计不仅使轮毂的质量降低和应力分布更加合理,而且轮毂结构的抗振性也得到了改善,该优化结果现已被工程生产所采用。The Model of shape optimizition analysis for fan hub structure was achieved by finite element method, and the weight of hub is minimized and the stress distributing in structure is improved while condition of specified intensity and rigidity was satisfied. The result of modal analysis for hub structure before optimal analysis was compared with ones after optimal analysis. The resuits obtained show that the weight of hub was not only reduced,and stress in hub structure has a reasonable distributing, but also the vibrating characteristic of hub was improved. These optimal results have been introduced into actual engineering application.

关 键 词：风机轮毂有限元形状优化设计模态分析 

分 类 号：TH430.23[机械工程—机械制造及自动化]