MESHING – what the reasons of problems such as lack of mesh generation and

incoherent meshes on edges are and how to solve them

Set the iterative adjustment of FE Mesh in Job Preferences to have coherent meshes on edges

http://forums.autodesk.com/t5/Robot-Structural-Analysis/Structure-verification/m-p/3334637

When a panel is not meshed check if it has the correct calculation model assigned (e.g. it is

not a curtain wall)

http://forums.autodesk.com/t5/Robot-Structural-Analysis/Reinforced-concrete-building-design/td-

p/3247788

Despite having the iterative adjustment of FE Mesh switched on but still there is the

incoherent mesh error reported.

In many cases this is caused by inaccuracy in the geometry of a model.

http://forums.autodesk.com/t5/Robot-Structural-Analysis/Meshing-into-robots-2012/m-p/3310651

You can use the detailed correction tool and adjust the model selecting one of the available options. In

most cases it is suggested to start with adjustment to structural axes, planes and lines.

http://forums.autodesk.com/t5/Robot-Structural-Analysis/Meshing-problem-in-Robot-2013-after-

repeating-calculations/td-p/3794469

http://forums.autodesk.com/t5/Robot-Structural-Analysis/Detailed-Structure-Correction/td-

p/3463282

http://forums.autodesk.com/t5/Robot-Structural-Analysis/plate-shell-member-s-shape-

configuration/td-p/3542276

http://forums.autodesk.com/t5/Robot-Structural-Analysis/Slab-edge-meshing/td-p/3705280

For a single panel the correction of its contour can also be done manually either to correct the position

of its corners or remove excessive division points created along the edges as they influence generation

of meshes. You can either use the properties of the panel

http://forums.autodesk.com/t5/Robot-Structural-Analysis/editing-slab-contour-geometry/td-

p/3223160

http://forums.autodesk.com/t5/Robot-Structural-Analysis/panel-co-ordinates/m-p/3168358

or by moving characteristic point of a contour (dragging it with the mouse)

http://forums.autodesk.com/t5/Robot-Structural-Analysis/Edges-A-lot-of-small-pieces/td-p/3379267

http://forums.autodesk.com/t5/Robot-Structural-Analysis/Mesh-consetration/td-p/3763970

http://forums.autodesk.com/t5/Robot-Structural-Analysis/Incoherent-mesh-on-edges/td-p/3347885

For panels that still do not mesh correctly you can try to change the meshing parameters

that are assigned to them. It is recommended to use size of the mesh element rather than

number of divisions and have similar sizes of elements defined for neighboring panels. Try

to run regular meshing for the panels that you have problem with meshing if this option is

switched off and switch it on if it is disabled.

http://forums.autodesk.com/t5/Robot-Structural-Analysis/Panel-edge-meshing-ordeal/td-

p/3365629

http://forums.autodesk.com/t5/Robot-Structural-Analysis/Problem-with-FE-mesh/td-p/3513734

You may be able to generate mesh for a panel that has not been meshed during the

model generation of the whole structure after deleting the meshes from the panels

that have common edges first and then running the local mesh generation for the

‘problem’ panel followed by the local mesh generation for the ones you delete

meshes from.

http://forums.autodesk.com/t5/Robot-Structural-Analysis/Slab-only-meshing-around-edges/td-

p/3391107

http://forums.autodesk.com/t5/Robot-Structural-Analysis/Meshed-not-created-for-the-whole-

panel/td-p/4465653

In some cases you may just need to manually move a node after freezing the meshes to

create coherent meshes

http://forums.autodesk.com/t5/Robot-Structural-Analysis/Manual-mesh-adjustment/td-p/4366517

http://forums.autodesk.com/t5/Robot-Structural-Analysis/Incoherent-Mesh/td-p/3923599

For panel with arches you may need to match the number of divisions of arches for

neighboring panels

http://forums.autodesk.com/t5/Robot-Structural-Analysis/Mesh-Option-for-Mesh-Generation/td-

p/3283153

http://forums.autodesk.com/t5/Robot-Structural-Analysis/can-t-mesh/td-p/3807307

Remember to freeze meshes that you manually corrected so that the model generation not

generates them again as they were created before your changes.