HD62812: PART : MEASURE INTERTIA : MEASURE OF 2D INERTIA IS NOT CORRECT

APAR status

• Closed as suggestion for future release.

Error description

• PART : MEASURE INTERTIA : MEASURE OF 2D
  INERTIA IS NOT CORRECT.
  .
  Scenario:
  1.Open the CATPart
  2. Perform the 2D inertia measure on the L section
  .
  OBSERVATION:
  The result of measure of moment of area about the
  centroidal axis is not correct.
  .
  EXPECTED RESULT:
  The result of moment of area about the centroidal
  axis should be correct.
  .
  .
  

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

• THIS APAR IS CONSIDERED AS A SUGGESTION
  FOR IMPROVEMENT WHICH CANNOT BE
  INCORPORATED IN VERSION V5R18
  PLEASE CONTACT YOUR SUPPORT DEPARTMENT IN
  ORDER TO OPEN A REQUIREMENT FORM.
  .
  Incident Diagnosis
  Measure inertia for 2D around the centroidal axes
  system represents the 2D inertia tensor around the
  principal axes system.
  .
  Development request justification
  For 2 D inertia measurements, the present
  algorithm returns the 2D inertia for an object
  around the principal axes system only. Hence the
  stress tensor represents the 2D moment of inertia
  around the principal axes system, which are
  represented in red and green. The calculation and
  representation of 2D inertia around the centroidal
  axes needs a total changeover of the present 2D
  inertia tensor measurement. Thus, this impacting
  correction needs to be studied deeply before
  implementing. Hence this needs to be worked on
  an enhancement basis for a future release with
  customer's participation to define clearly the scope
  of the enhancement.
  .
  Answer and By-pass
  In order to calculate the 2D inertia about the
  centroidal axes system please perform the
  following steps.
  1. Click on measure inertia and select the icon for
  surface/volumic item
  2.  Select the 2D face/surface of which the 2D
  intertia needs to be measured
  3. The result is obtained which contains the surfacic
  moment of inertia about the centroidal axes.
  4. In order to get the 2D moment of areas, divide
  the surfacic moment of inertia by the surfacic
  density.
  .
  

APAR Information

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

Fix information

Applicable component levels