多功能结构设计及谱分析  

Design and Spectrum Analysis of the Multi-Functional Structure

作　　者：武宇[1] 颜肖龙[1] 戴载星[1] 

机构地区：[1]东南大学机械工程学院,江苏南京210096

出　　处：《电子机械工程》2007年第3期14-15,23,共3页Electro-Mechanical Engineering

摘　　要：提出了一种应用于航天器上的多功能结构设计方案,选取材料特性并注重结构部件之间的连接和装配方式。利用ANSYS有限元软件建立了以壳单元和体单元为主的MFS有限元模型,对结构进行了理论模态分析。参照环境试验要求,对结构受随机振动激励进行了动态仿真,确认结构的薄弱环节,为结构的进一步改进提供充分的依据。It was introduced a new Multi - Functional structure model that paid great attention to slectiong material property, connection and assemble method between parts, therefore can be applied on spacecraft. MFS FEA model was built mainly with shell unit and solid unit with ANSYS software, and the structure dynamic under random vibration was simulated. The weak points that affected the structure seriously were found, and this data could provide the theoretical reference for the further analysis and design.

关 键 词：多功能结构 有限元模型 模态分析 动态仿真 

分 类 号：O35[理学—流体力学] O242.21[理学—力学]