大型覆盖件有限元分析及结构优化设计研究  

Finite Element Analysis & Structural Optimization Design of Large Cover Piece

作　　者：洪承志 谢质彬[1] 韩改田 

机构地区：[1]宁波大学机械工程与力学学院,浙江宁波315000

出　　处：《机械制造》2017年第9期48-52,共5页Machinery

摘　　要：为了提高大型覆盖件的抗弯强度,以计算机断层成像机覆盖件为研究对象,提出一种加强筋结构优化及分布优化设计方法。结合板壳理论和有限元方法,建立、对比并选出最佳设计模型。结果表明,所提出的设计方法不但能提高覆盖件的强度,而且能减轻自身的质量。In order to improve the bending strength of large cover piece, a design method for structural optimization and optimum distribution of strengthening rib was proposed by taking the computer aided tomography imaging machine as the object for study. Combined with the shell theory and finite element method, the best design model was established, compared and selected. The results show that the proposed design method not only can improve the strength of the cover piece, but also can reduce their own material mass.

关 键 词：覆盖件 结构 优化 有限元 

分 类 号：TH114[机械工程—机械设计及理论]