2nd tutorial on how to model a wide-chord fan for a turbofan engine in CATIA

Chris Shakal

22 Oct, 2012 07:50 AM

**** Steps 16 thru 35. *****

1. Step 1:

   16. Make 2 more intersection points.
   

   

2. Step 2:

   17. Create the shape shown, following similar procedure as the one before.
   

   

3. Step 3:

   18. Make the profile shown on the zx-axis. The left-most point should be coincident with the H-axis. The right-most point should be coincident with the V-axis.
   

   

4. Step 4:

   19. Make the line shown.
   

   

5. Step 5:

   20. Make a Revolution Surface with both the profile and line you made earlier. The command for it is underneath the Extrude command.
   

   

6. Step 6:

   21. Create a multisection surface. Make sure the closing points are correct.
   

   

7. Step 7:

   22. Create another circle on the yz-plane.
   

   

8. Step 8:

   23. Extrude the circle.
   

   

9. Step 9:

   24. Split the fan blade and extruded circle. Click Other Side if the wrong part is cut out.
   

   

10. Step 10:

    25. Fill in the tip of the blade.
    

    

11. Step 11:

    26. Make the following spiral on the yz-plane.
    

    

12. Step 12:

    27. Enter sketcher on the yz-plane and project the spiral, then offset it and close the ends.
    

    

13. Step 13:

    28. Project the spiral sketch onto the spinner cone.
    

    

14. Step 14:

    29. Extrude the projection.
    

    

15. Step 15:

    30. Split the extrusion and spinner.
    

    

16. Step 16:

    31. Fill in the empty space using the spinner as the Support.
    

    

17. Step 17:

    32. Join the fan blade and its filled-in tip.
    

    

18. Step 18:

    33. Create the rest of the blades by using Circular Pattern.
    

    

19. Step 19:

    34. You are done! Go ahead and render it and admire your work.
    35. If you have any questions, feel free to ask either on here or as a private message.