1. Description
This component operates the Eigenvalue Ritz Vectors function in Civil NX.
Eigenvalue analysis provides dynamic properties of a structure by solving the characteristic equation composed of mass matrix and stiffness matrix. The dynamic properties include natural modes (or mode shapes), natural periods (or frequencies) and modal participation factors.
The EEigenvalue Ritz Vectors function can be found in the Civil NX main menu,select [Analysis] tab > [Analysis Control] Group > [Eigenvalue] Menu
2. Grasshopper Path
[Midas] > [Analysis] > [Eigenvalue Ritz Vectors]
3. Component Image
4. Input/Output Value
- Input Data
| Index | Name | Description | Type | Default |
Previous |
|---|---|---|---|---|---|
| 1 | CASE * | Load Case Name | String | - | - |
| 2 | iNOG | Number of Generations | Integer | - | - |
| 3 | Load Case Type | Load Case Type | Select | Load Case | - |
Activation Condition
* Only for if Load Case Type is Load Case
- Output Data
| Index | Command | Description | Type | Method |
Next |
|---|---|---|---|---|---|
| 1 | - | Create Eigenvalue Ritz Vectors | Object | - | Eigenvalue Analysis Control |
5. Reference API Manual Link