Test Level 1Test level 1 is called using the command
For the first test level, it is required that the following files exist:
The optimization is stopped after the optimization preprocessing is finished
and the database for the optimization has been created. The directory If the test run has been finished correctly (output In shape optimization, all restrictions can be checked using the
In bead optimization, all restrictions as well as the direction of the resulting
beads can be checked using the
Test Level 2Test level 2 requires not only the files
In this test level, the first optimization step is carried out without a FE analysis. The existing result file is copied to the working directory from the start directory. The optimization is stopped after the optimization module has been called once and a modified analysis model for the relevant solver has been created. The first optimized model, derived from the optimization model and the analysis of the initial design, is generated with low CPU time. As no FE analysis is carried out at this test level, a saving of 70% to 90% in CPU time is achieved compared with the time needed for a single optimization loop including a FE analysis of large models.
In this way, several variations can be tested effectively (for example, different parameter
files such as
Test Level 3No finite element analysis must be completed previously in test level 3. After
the evaluation of the parameter file ( When a modified analysis model has been generated from one evaluation of the preprocessing results and the FE results, the optimization is stopped. The modified analysis model is not analyzed by the finite element solver at this test level.
A possible call could be as follows:
Test Level 4Test level 4 is an extension of test level 2. A result file must exist in the start directory of the optimization job. This result file must contain all results needed for the optimization. In test level 4 and during the first iteration, the present result file is copied to the working directory. The optimization continues as normal until convergence has been achieved or a stop condition has been met. Using this test level, the finite element analysis performed in the first iteration of an optimization can be reused for a completely different optimization performed on the same model. Because the results of the initial model are always the same, the same result file can always be used and does not need to be recalculated each time. A possible call could be as follows:
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