XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX''"> Selecting an Optimization Method
This section suggests the optimization type, method, and criterion to be selected for commonly used analysis codes. For analysis codes not listed below, please refer to the code vendor for a recommendation.
Note that the choice of method and criterion may depend on the structure of your model and type of analysis (static vs. dynamic). As a result, the recommendations given below are suggested only as guidelines.
Most of the commonly used analysis codes have their own built-in optimizers which internally renumber the nodes or elements. These codes are marked with an asterisk(*) in the following table. The external IDs do not change. There are a couple of advantages to using the code specific optimizers.
• They are tuned to the specific analysis code.
• They give control of the entity IDs back to the user.
However, there are cases where the Patran optimizer does a better job than the code specific optimizer.
Analysis Code | Object | Method | Minimization Criterion |
ABAQUS | Elements | BOTH | RMS WAVEFRONT |
MSC Nastran* | Nodes | BOTH | RMS WAVEFRONT |
MSC.Marc* | Nodes | BOTH | RMS WAVEFRONT |
FEA* | Nodes | BOTH | PROFILE |