Applies To Product(s): PULS Version(s): XM Environment: N/A Area: Error Subarea: Original Author: Bentley Technical Support Group The following is a list of typical errors and solution to resolve. Item #1: INPUT ERROR Message INPUT ERROR - Nodes have different fluid IDs for element XX Fluid IDs can change at two or three ports or at centrifugal compressors. Try updating element information using ALT-M. Answer: Reviewing the definitions listed (two or three ports) changes to the Fluid ID can only occur at one of the 3 following locations without incurring this error message seen above. 2-port element (e.g., reducer, expander, elbows) 3-port element (tee or source node) centrifugal compressors Example: for a given model the fluid ID is changed between a volume element #28 and pipe run element #29. Because of the Volume element element #28 is not one of the 3 items listed above; changing the temp in element #29 affects the shared node point between element #28 and element #29. Thus causing the error message to be displayed. However, the program only looks at changing the temperature between 2 pipe runs as a warning instead of an error as shown above. The user can decide to accept this as Ok modeling technique by ignoring the warning, or do something about the warning and change the model in some form. See online help Contents Tab Bentley Puls Comparison To experiments NACA Test modeling the mufflers for different modeling techniques. To convert the error message to a warning, model coul insert a new short pipe element and change the fluid ID between the pipe elements instead at the Pipe / volume node point . Again, this would produce a warning instead of an error. However, to fix the model correctly so no warnings are displayed, need to change the modeling technique for applying Fluid ID's to not cause such warnings/errors or different pipe routing/elements to get rid of the volume element completely. The choice is up to the user. Item #2: Error Message - INCORRECT NUMBER OF NODES SPECIFIED : INPUT ERROR - Piping may be disconnected. Incorrect number of loops or nodes. Number of loops entered = 0 Number of nodes entered = 54 INCORRECT NUMBER OF NODES SPECIFIED NNOD SHOULD BE = 55. Answer: Analysis nodes as per SOL file are different from actual model. S uspect that the issue is that the number of loops are not set properly. This may be found under Analyze Number of loops after running this command the number of loops will be updated as required (in this case, updated from 0 to 1 loop). Now run an analysis, the error should be removed. See online help for more details on this feature. Item #3: The following is displayed when exporting shaking forces: --------------------------- Error --------------------------- Failed to export the shaking force file: Overflow --------------------------- OK --------------------------- Answer: During the creation of the HMF file using File Export Shaking Forces, for some models the program may crash if the Analyze Force direction command shows the AutoPIPE axes to be zero vectors. A new enhancement (CAE-CR-7856) has been added to a check for zero cosines when using File Export forces. It is unknown what causes 0 direction cosines in some models. Workaround, if direction cosines are zeroes, set them to unit vectors by using "Edit Shaking Forces". See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!
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