In topology optimization, the design area denotes the set of elements that might be removed during the optimization, in contrast to the frozen areas that remain unchanged. The model for the topology optimization is modified in such a way that the inner areas of the component are filled with elements to create a design area where the optimization system can remove or rearrange elements for better structural performance. ExampleThe following start model for topology optimization represents a design of a control arm for a car. The component must be manufactured by forging and consists of aluminum. The red areas of the component are not free for the optimization because they are used for the fixtures and for the load application. One red area is used for the mounting of a sensor for the headlight range adjustment.
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