有限元法在结构件强度分析中的应用

介绍了有限元法的基本原理和分析步骤,并结合实际,利用IDEAS软件的有限元分析模块对某定型模盖板的结构进行了强度校核。在工况分析的基础上,适当简化了盖板的几何模型,建立了有限元模型;通过边界条件处理、网格划分及单元解算,得到了盖板在工作状态下的应力和位移分布规律,为盖板的设计提供了力学依据。同时,为舰载电子设备机箱、机柜的壳体这类复杂结构件的强度分析提供了一个有效的方法。

Application of Finite Element Method in Strength Analysis for Structural Parts

In this paper, the principle and steps of finite element method is described. Making use of simulation module of IDEAS of finite element, the strength analysis to cover plate has been done. Based on working condition of cover plate,whose geometric model is simplified properly and the finite element model is established. Through such operation as setting up boundary conditions, meshing and solving, the principle stress and displacement distribution is obtained. This method provides mechanics evidence on structure design of cover plate. At the same time, an effective method is also presented to strength analysis of complicated structural parts such as shell of console and cabinet on ship-borne electric equipment.