New Analysis

The New Analysis form is shown below.

Name: Enter a name for the new analysis.

Title: Enter additional comments about the analysis, such as a brief description.

Type: Currently, the following analysis types are supported:

Select Units: Autodesk Inventor Nastran allows you to choose the units of analysis at two different levels:

CAD Model: This setting uses whatever units you select in the CAD Model.
Other units systems available are SI, Modified SI and English.
If the units are modified inside the analysis, then this setting overrides Inventor Nastran, Format, and then Units for the analysis.
If the model has multiple analyses, a different unit system can be selected per analysis.
This only applies to the Nastran Bulk Data file that is written out. The user will not see a difference in the numbers entered in the user interface.

Nodal Output Control:

Displacement: Controls nodal displacement output.
Velocity: Controls nodal velocity output.
Acceleration: Controls nodal acceleration output.
Applied Load: Controls nodal applied load output.
Single Point Constraint (SPC): Controls nodal single point constraint output.
Multipoint Constraint Force (MPC): Controls nodal multipoint constraint output.
Grid Point Force Balance: Controls grid point force output.
Temperature: Controls temperature distribution output.
SPC Heat Flow: Controls single point heat flow output.

Elemental Output Control:

Data Type:
- Corner: Controls whether or not corner data will be generated from the Nastran solution.
- Centroidal: Controls whether or not centroidal data will be generated from the Nastran solution.
Output Sets:
- Force: Controls elemental force output.
- Stress: Controls elemental stress output.
- Strain: Controls elemental strain output.
- Strain Energy: Controls elemental strain output.
- Heat Flux: Controls elemental heat flux output.

Dynamic Options:

Phase: For Frequency Response solutions, this option will appear as a choice for Magnitude and Phase output.
Real: For Frequency Response solutions, this option will appear as a choice Real and Imaginary output.
PSD Output Control: For Random Response/Vibration Fatigue solutions, this option will appear as a nodal and elemental output.

Output Options:

Plot: Result output only to the results neutral file system.
Print: Result output to both the model results output file and the results neutral file system.
Punch: Result output additionally to the model results punch file.
Plot and Punch: Result output to both the model results output file, the results neutral file system and the model results punch file.

Contact Data: Allows you to set the default settings for generating Automatic contacts in Autodesk Inventor.

Options Tab

Fields on this tab vary somewhat, depending on the analysis type.

Contact Type: Separation, Bonded, Sliding/No Separation, Separation/No Sliding, and Offset Bonded are available to define automatic contacts using the CAD Model.
Tolerance: It allows you to generate automatic contacts using the faces which are within the specified tolerance.

Large Displacements:

On: Large displacement, follower force effects, and differential stiffness will be included for nonlinear analyses.
OFF: Large displacement, follower force effects, and differential stiffness will not be included for nonlinear analyses.

Cyclic Symmetry

When checked the solver looks for cyclic symmetry conditions based on the coordinate system and the constraint.
Coordinate System: This should be set to the same cylindrical coordinate system along which the cyclic symmetry result is expected.
Tolerance: Near tolerance is used to identify boundary grid points for the application of cyclic symmetric boundary conditions.

Spectrum Data applies only to Shock/Response Spectrum analysis.

Structural Response: Select On or Off to specify whether the analysis will include structural response.
Summation Option:Select the method to use for summing responses: Absolute (ABS), Square Root of Summation of Squares (SRSS), Naval Research Lab (NRL), or Complete Quadratic Combination (CQC).
Lower Frequency: The lowest frequency to analyse.
Weight Mass Scaling Factor: Specify this factor if material density is input in weight units and must be converted to mass units.

Choose a model Representation defined in Inventor as the basis of your analysis model.

Design View: You create a Design View in the Inventor assembly environment to preserve a designated representation view of assembly components. In these views, some assembly components are not visible, if they are not needed for a particular view and analysis.
Model State: You create a Model State in the Inventor assembly environment to simplify a model by suppressing unnecessary components. You can also use model state to combine parts of an assembly into a single part representation.

The tutorials in this guide cover the analysis types supported.