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What happens if one BC is applied on several Non-Design Spaces?

Boundary conditions can be applied separately on cells or on several cells simultaneously. The selection causes different behaviours in the optimisation algorithm.

Multiselection of a boundary condition on several cells inside MSC Apex Generative Design - deactivate the flash:

Examples Single Selection

A boundary condition placed on one cell, effects this cell as defined in the set up. This implies that every cell has to be part of the new design and applies to all boundary conditions as single selection. If one cell which experiences a load loses the connection to the Design Space, an error will occur.

Examples Multiselection

If a boundary condition is applied on multiple cells the amount and impact is evenly divided between the selected cells/Non-Design Spaces. The optimisation starts with this set up. However, if one of the Non-Design Spaces loses the connection to the overall structure, the applied boundary condition will transfer fully to the remaining Non-Design cell(s). If this behaviour is desired to reduce e.g. fixation points, the Keep Non-Design function has to be deactivated.

This way the reduction of connection points to other assembly parts can be realized.

 

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