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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The first step is to transfer an already existing geometry. The result from the following optimisation was used in this case:
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The last iteration is selected and transferred to the Pre Processing with the Transfer Design Candidate Shape to pre-processing button.
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In this case ten 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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