[工学]NX_CAE讲座.ppt

Elements that can be used for a linear static analysis include: 3D tetrahedral or hexahedral solid elements 2D quadrilateral or triangular thin shell elements 1D bar, beam, rod, rigid link, and spring elements 0D concentrated mass elements Gap elements Natural frequencies and mode shapes are the primary results for a modal solution. The results are ordered by frequency, with the lowest natural frequency being the first mode shape, the next highest being the second mode, and so on. The normal modes represent dynamic states in which the elastic and inertial forces are balanced when no external loads are applied. The magnitude of the mode shapes is arbitrary. The amplitude of the displacement is not significant, but the relative displacement of the nodes is significant. Mode shapes help you determine what load locations and directions will excite the structure. Materials used in thermal analysis include properties such as the following: Reference Temperature — Use this to calculate the delta T used with the thermal expansion coefficient. If reference temperature is not specified, the default solution temperature is used. Thermal Expansion Coefficient — Use this if you plan to calculate thermal strain in a later linear static analysis. Thermal Conductivity — Use this to calculate energy transfer through the material. You can define these properties as tables to make them temperature-dependent. 议程 NX 高级有限元仿真流程简介 NX CAE结构分析案例 NX Nastran结构分析功能介绍 NX 高级仿真分析包功能 前处理：网格+边界条件+求解设定 NX Advanced FEM Ansys NXMSC/Nastran Abaqus LSDYNA 求解功能 （NX Nastran 无求解规模限制）： 线性静态分析（含惯性释放） 模态分析 屈曲分析 稳态热传导 瞬态热传导 点焊分析 后处理 云图 XY图线 NX CAE的价值——结构创新 NX 软件最先提出多级仿真数据结构 优点： 1 各层数据柔性映射 2 追踪简化模型与主模型的变更关系 3 柔性化数据管理和模型重用 4 为有效的CAE数据管理提供保证 NX-Advanced Simulation文件结构 分级数据结构支持有效的数据管理 NXCAE 曲柄仿真分析流程演示 NX解决方案——参数化概念从CAD延伸到CAE领域！！！ 热成像仪结构分析案例 零件级结构分析 组件结构振动分析 NX CAE分析向导动画演示 NX Response Simulation振动分析 分析类型 瞬态响应 频域响应 随机响应 冲击谱响应 DDAM响应 传递函数 独特优势 GUI驱动计算