In the preceding Product Enhancements Release (June 2014), a Nastran solver option was added for four analysis types. Click here to review the enhancements introduced at that time. The current release, Simulation Mechanical 2015 R1 (August 2014), adds a Nastran solver option to three more analysis types. The revised list of analyses that you can solve using an Autodesk Nastran processor is as follows:
- Static Stress with Linear Material Models 1
- Natural Frequency (Modal) 1
- Natural Frequency (Modal) with Load Stiffening 2
- Critical Buckling Load 1
- Static Stress with Nonlinear Material Models 2, 3, 4
- Steady-State Heat Transfer 1
- Dynamic Design Analysis Method (DDAM) 2, 5
Notes:
- Nastran solvers for these four analysis types were introduced in the June 2014 Product Enhancements Release.
- Nastran solvers for these three analysis types are added in the current release, Simulation Mechanical 2015 R1 (August 2014).
- While running the Nastran processor to solve a Static Stress with Nonlinear Material Models analysis, viewing of incremental results is not available. You must wait for the simulation event to be completed before reviewing the results. If you want to monitor the incremental results during the solution phase, you must use the Simulation Mechanical solver.
- Attention: The following information applies to models run using a Nastran processor or exported to the Nastran Editor. When specifying surface contact in a Static Stress with Nonlinear Material Models analysis, follow the guidelines presented below:
- Do not attempt to set the Contact method to Frictionless Slide / No Bounce or Frictional Slide / No Bounce. Only the general Frictionless Contact or Frictional Contact methods are supported by the Nastran processor. For more information, consult the Contact method topic on the Surface-to-Surface Contact
Options Help page. - When including friction, we recommend that you set up the contact using the Smooth Coulomb Friction law. This friction law considers only a single coefficient of dynamic friction (not static and dynamic coefficients). The Nastran processor supports a single coefficient of dynamic (sliding) friction and is therefore compatible with the Smooth Coulomb Friction law in Simulation Mechanical. For more information, consult the Modeling Friction section topic on the Surface-to-Surface Contact Options Help page.
- Do not attempt to set the Contact method to Frictionless Slide / No Bounce or Frictional Slide / No Bounce. Only the general Frictionless Contact or Frictional Contact methods are supported by the Nastran processor. For more information, consult the Contact method topic on the Surface-to-Surface Contact
- You must solve DDAM analyses within the Autodesk Nastran Editor or using the native SimMech processor to solve the model within Simulation Mechanical. There is no Nastran processor option for DDAM solutions within Simulation Mechanical at this time. In addition, you cannot merge DDAM results from the Nastran Editor into the associated Simulation Mechanical model, as you can for the other supported analysis types.
Default Processor
You can specify the desired default processor for the two additional analysis types solvable in Simulation Mechanical using a Nastran processor. Do this in the same manner as described in the June 2014 addendum. All six supported analysis types are listed within the Processors tab of the Options dialog box (Tools Options Application Options Processors). For more information, refer to the How to Choose which Solver to Use section of the June 2014 Autodesk Nastran Solvers and Related Options page.