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详细的壳有限元分析

  1. 详细的壳有限元分析
  2. 分析和结果
  3. 分析类型

分析类型

分析类型

Linear Static – static analysis, takes into account elastic material properties

线性屈曲 - 选定数量的本征模态的线性稳定性分析.

Geometry Nonlinear Static – iterative analysis, takes into account elastic material properties and geometry nonlinearity (大位移)

几何 + 材料非线性静态 - 迭代静态分析考虑材料和几何非线性 (大位移)

几何 + 材料非线性动力学——迭代动力学分析考虑了材料和几何非线性 (大位移)

 

静态设置

全局负载因子——该因子将乘以模型中的所有负载值进行分析

时间段和时间增量——迭代分析设置. 大多数分析案例的这些设置设置正确,可以默认使用.

 

动态设置

时间段和时间增量——迭代分析设置.

结果输出步骤 – 用于分析过程中的结果记录

DampingRayleigh damping, alternatively termed proportional damping, represents a variant of viscous damping allocated throughout the elements. This approach constructs a damping matrix, 表示为 , through a linear amalgamation of the mass matrix and the stiffness matrix

负载幅度

In nonlinear finite element analysis, the load-time function is a critical feature that defines how loads are applied over time. The software provides the capability to assign varying load intensities at different instances, which is especially useful in simulating real-world conditions where loads are not constant.

To enhance this functionality, the software allows the definition of two amplitude options for the loads. These amplitude options enable users to specify a pattern or a sequence of load values that change over the course of the analysis.

The first amplitude option can define the initial ramp-up of the load, allowing for a gradual increase from zero to the maximum load value, reflecting a more realistic application of force or pressure on the structure. The second amplitude option can describe a subsequent phase, such as a holding pattern, cyclic loading, or a decrease to simulate the removal of the load.

If you only need to deal with a single load amplitude, where all applied loads follow the same function, use ‘Amplitude 1as an example. The program will ignore the second amplitude if it is not used.

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