The Advanced User Settings give the possibility to (re-)start an optimisation with a Start Space. With this option already optimised results can be modified, e.g. struts can be added or removed, and this new geometry can be used as the starting point of the optimisation. With this Two-Stage-Optimisation already optimised geometries can be highly influenced and steered in the desired direction.
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For the copied Scenario the Advanced User Settings have to be set-up. The path to the modified Start Space has to be selected. Furthermore, the Advanced User Settings are used to adjust the number of iterations for each Resolution Level. In most of the cases a Two-Stage-Optimisation should start directly on the highest Resolution Level or at least on the last two Resolution Levels.
In this case four two iterations on the last Resolution Level are entered. How to adjust the number of iterations for each Resolution Level is explained here.
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The optimisation starts with the modified geometry as the first iteration. At the end of the optimisation the strut is integrated completely into the design. Because the new strut is now loaded with stresses other areas of the geometry are less loaded. The optimisation reduces the material accordingly at these areas, thus in most cases the new, modified design is as lightweight as the previous one.
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The complete MSC Apex GD project with all results can be downloaded here:
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