HD79300: ANALYSIS ( GSA ) / ON SELECTING COMPUTE, SINGULARITY ERROR IS S HOWN.

APAR status

• Closed as program error.

Error description

• On selecting Compute, Singularity error is shown.
  .
  SCENARIO:
  .
  1 Open the attached CATAnalysis file in CATIA R18
  SP05.
  2 In the analysis workbench, select Compute / All.
  3 During computation, following error message is
  displayed:
  .
  ERROR MESSAGE:
  Factorized matrix computation.
  Singularity detected in rotation (pivot too small)
  Possible reasons: missing restraint or connection
  specifications.
  Display rotational vectors to diagnostic the
  problem.
  .
  4 Open the file in R18 SP04. Select compute.
  5 The file is computed in R18 SP04 without errors
  and without any modifications in the mesh.
  .
  EXPECTED RESULT:
  .
  The model should be computed in R18SP05 without
  errors.
  .
  .
  

Local fix

Problem summary

• ANALYSIS ( GSA ) / On selecting Compute, Singularity error is s
  hown.
  On selecting Compute, Singularity error is shown.
  .
  SCENARIO:
  .
  1 Open the attached CATAnalysis file in CATIA R18
  SP05.
  2 In the analysis workbench, select Compute / All.
  3 During computation, following error message is
  displayed:
  .
  ERROR MESSAGE:
  Factorized matrix computation.
  Singularity detected in rotation (pivot too small)
  Possible reasons: missing restraint or connection
  specifications.
  Display rotational vectors to diagnostic the
  problem.
  .
  4 Open the file in R18 SP04. Select compute.
  5 The file is computed in R18 SP04 without errors
  and without any modifications in the mesh.
  .
  EXPECTED RESULT:
  .
  The model should be computed in R18SP05 without
  errors.
  .
  .
  

Problem conclusion

• THIS PROBLEM WILL BE FIXED ON CATIA VERSION
  5 RELEASE 20 GA LEVEL.
  NOTE THAT THIS PROBLEM WILL ALSO BE FIXED
  ON V5R19SP03 AND ON V5R18SP08
  INCIDENT DIAGNOSIS:
  .
  While compute singularity was detected.
  Problem was related with tolerance.
  .
  .
  CORRECTION EXPLANATION:
  .
  While performing numerical tolerance test, the
  tolerance set was incorrect.
  The tolerance value has been corrected.
  The model is now computed without error.
  .
  

Temporary fix

Comments

• COMMEN518
  

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  CATIA V5 NT>XP

• Fixed component ID

  569151000

Applicable component levels

• R518 PSN SP51808

     UP09/02/24 I 1000