Learning Forum

[mjmiddle]

Internal IDs are assigned to vertices, edges, faces, bodies and these need to stay the same for scopings to be kept in Mechanical. Making topological changes to any body will cause these IDs to change and likely all scopings to that particular body will need to be reselected in Mechanical. Additionally, it uses the hierarchy of component names and placement of the body in the ID naming convention, so moving bodies to different components will also require a rescoping to geometry on those bodies in Mechanical. So to be safe, at least do not drag bodies to different components. However, shared topology changes everything since it imprints edges and faces to adjacent bodies. So topological changes to a body can expect to also change IDs to any connected bodies by shared topology. In summary, it is hard to make topological changes to bodies and not expect to rescope geometry in Mechanical. This is typically what must be done. In Mechanical, there is a scoping wizard in the selection ribbon that remembers the previous entity for scopings and will alert you to changes when geometry is refreshed. This helps you locate the problems and guides in what needs to be reselected.