The validation for Compliant moves is performed during Nominal Build, and before running the Simulation or Sensitivity analysis. After 3DCS performs Pre Analysis Validation, the result is displayed in a temporary file in a Notepad window. The user has the option to save the Run Log file, for later viewing in Notepad.

Note: Status 'Error' indicates that this type of message found in the run_log causes a failed assembly condition.

List of Validation Errors Reported (Pre-Analysis)

MOVES

Load FEA Data Moves

"Non-Existing (Abs or Rel) FEA Mesh File" (error)

The Input Deck is not found. The user must load the Input Deck for the listed parts, using the Load FEA Move.

"Non-Existing (Abs or Rel) Stiffness File" (error)

The Stiffness Matrix is not found. The user must load the Stiffness Matrix(s) for the listed parts, using the Load FEA Move.

"FEA-Mesh-Import (TreeName) - Modeling PT(s) [FeatName1, Featname2] do not link to any FEA (ASET) node." (warning)

The listed points are not linked to a mesh node. The user can perform the linking manually, using the FEA Linking Wizard function.

"FEA-Mesh-Import (TreeName) - 2 Invalid Saved FEA (ASET) node(s). Saved FEA node(s) coordinates do not match any FEA node in the provided input deck." (error)

This may happen when the input deck is replaced or updated. The user can reselect the parts and their FEA information in the Load FEA move to correct this problem.

"Points [FeatName1, FeatName2] lost their link and will need to be manually re-linked to a valid FEA node(s)." (warning)

The listed points are no longer linked to a mesh node. The user can re-link them manually, using the FEA Linking Wizard function.

"FEA-Mesh-Import (TreeName) - Input deck (mesh file) contains extra FEA (ASET) node(s) beyond what was saved. Automatically creating additional FEA (ASET) node(s) from input deck for grid identifiers: ..." (warning)

This may happen when the input deck is replaced or updated. The user can reselect the parts and their FEA information in the Load FEA move to correct this problem.

"FEA-Mesh-Import (TreeName) - Reminder - Modeling PT(s) [ FeatName1, FeatName2 ] do not have a saved link to any FEA (ASET) node." (warning)

This warning reminds the user that the listed points are not linked to a mesh node.

"FEA-Stiffness-Matrix-Import (TreeName) - Inconsistency between the input deck file and stiffness matrix file. Stiffness matrix element(s) cannot be found for FEA mesh node(s) - ..." (error)

There are discrepancies between Input Deck and Stiffness Matrix. The user needs to load the correct files.

"FEA-Stiffness-Matrix-Import (TreeName) - Inconsistency between the input deck file and stiffness matrix file. FEA mesh node(s) cannot be found for stiffness matrix element(s) - ..." (error)

There are discrepancies between Input Deck and Stiffness Matrix. The user needs to load the correct files.

"FEA-MESH (Front_Xmem) Modeling PTS [48, 178] are linked with the same FEA (ASET) Node [244]" (warning)

This warning reminds the user that more than one DCS modeling point is linked to the same FEA mesh node. This warning only appears when executing the first nominal build, after loading the Input Deck information.

"Different FEA file detected. Replaced Stiffness Matrix file with ..."

The stiffness or mesh file was replaced with a different one in the Load FEA Data move.

StiffGen

"Failed to get Inverse Matrix for StiffInfo - StiffFile.stf" (error)

The stiffness matrix could not be recalculated. This occurs when the mesh surface is composed of two or more separate surfaces, or when there are not enough constraints (e.g. welding or clamping in a single line).

Nominal Build command

"Failed to get Inverse Matrix" (error)

The stiffness matrix inverse could not be calculated. This occurs when the same ASET linked modeling point, is used in multiple compliant moves.

Clamp Moves

"Cannot find stiffness information for clamping point(s)..." (error)

The listed points are not linked to a mesh node. The user can link them manually, using the FEA Linking Wizard function.

"Clamp1 Under-constrained (Inverse Matrix) for StiffInfo - C:\Temp\Part-1_MTX_STIF1.mtx" (warning)

The message appears when nominal building the parts, if the part is under-constrained. This happens when using less then three points, or using three or more points set in a single line, based on the 3 degrees of freedom restricted per each mesh node.

" tgt pts in 'Clamp' move belong to compliant part..."

The target point(s) used in the clamp move belong to a compliant part.

Unclamp Moves

"Cannot find stiffness information for unclamping point(s)..." (error)

The listed points are not linked to a mesh node. The user can link them manually, using the FEA Linking Wizard function.

Weld Moves

"Diff type-in dir (Welded Stiffness Matrices required in same coordinate!) found in WeldPair1 (ObjFeatName1, TgtFeatName1)..." (warning)

This warning reminds the user to verify the associated direction for welding points.

"Weld Pair 1 => ObjPt FeatName1 is clamped already!" (error)

The same point cannot be used in more than one compliant operation. This message tells the user which points were used more than once.

"Weld Pair 1 => TgtPt FeatName1 is clamped already!" (error)

The same point cannot be used in more than one compliant operation. This message tells the user which points were used more than once.

"Cannot find stiffness information for object welding point(s)" (error)