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Tutorial A3: Set Up the Model

  1. Start Autodesk Inventor Nastran.
  2. From Open, navigate to the C:\Users\Public\Public Documents\Autodesk\Inventor Nastran 2025\Tutorial\en-us\Inventor 2025 folder and open bracket.ipt.
  3. Click File, Save As and save the model as Modal Frequency Bracket.ipt. This allows you to reuse the original part.
  4. Click Environments > Autodesk Inventor Nastran.
  5. Go to Tools > Document Settings > Units. Set the units to inch and lbmass (pound). They will become the Default units. Or, double-click Units in the tree and select a Unit System with units set to inches and pounds.
  6. Click OK.
Parent topic: Tutorial A3: Modal Frequency Response of a Bracket

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