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
Damping – Rayleigh 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 1’ as an example. The program will ignore the second amplitude if it is not used.