This tutorial shows how to perform a Restart of a stopped optimizationoptimisation. Therefore, the Advanced User Settings are needed. More information regarding the background of a Restart here.
With this option a terminated optimization optimisation can be continued. To realize a Restart instead of the Design spaceanother geometry can be chosen as the Start space. In this case the optimization optimisation starts with the specified geometry although the whole Design space is still the geometry limitation for the optimization.the optimisation.
The Start space STL-file needs to be entered into the optimisation in S.I. units!
Start Space STL-file
The Start space for a Restart must be a STL-file. Therefore, a already optimized optimised geometry can be exported in the Post Processing. In this case iteration 22 from the Bookshelf Tutorial will be used.
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Attention: The STL-file for the Restart must be exported in SI-Units (Meters).
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optimisation Setup
In the next step a new Scenario should be created for the Restart optimizationoptimisation. With the Advanced User Settings - availble available through a right click on the Scenario - the Start space STL-file can be selected. In this case the exported iteration 22 is selected.
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In this example the Bookshelf should be restarted as if the optimization optimisation never stopped, so with the same optimization optimisation parameters as the first optimization optimisation excluding the already done iterations. Therefore, the settings for the parameters Strut Density: Medium and Shape Quality: Balanced are added to the Advanced User Settings and adjusted according to the number of iterations already calculated. Which number of iterations and which stress percent goal should be input for each resolution level can be found here.
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After adding these commands to the Advanced User Settings the optimization optimisation can be started. The first iteration of the restarted optimization optimisation will be the imported Start space.