Tutorial: How to optimize design using SW Simulation?

Dmitriy Babych

18 Jun, 2015 02:28 PM

optimize design

1. Step 1:

   Create model by this drawing in SW
   

   

2. Step 2:

   Launch SW simulation module
   

   

3. Step 3:

   Create new static study
   

   

4. Step 4:

   Add material to detail
   

   

5. Step 5:

   fix detail as shown in the drawing
   Add fixed hinge in 4 holes

   

6. Step 6:

   fix detail as shown in the drawing
   Add roller/slider

   

7. Step 7:

   Add force 8000 N
   

   

8. Step 8:

   Create mesh
   

   

9. Step 9:

   Start calculations
   

   

10. Step 10:

    We get results
    Maximum stress is 96.056 MPa
    On the back wall there is almost no load. Material used there in vain. So we remove the part of material. In this case stress will not change much. But we will save material.

    

11. Step 11:

    Create sketch and cup some material from back wall.
    

    

12. Step 12:

    recalculate detail
    It became better resist stress
    Weight decreased by 200 grams

    

13. Step 13:

    Now optimize the dimensions B1 and B2
    Crete new design study

    

14. Step 14:

    Add new variable in design study. select dimension B2 like on snapshot, input name of variable and click apply & OK. New variable appears in the table.
    

    

15. Step 15:

    In such way add variable B1. All you steps on snapshot
    

    

16. Step 16:

    Now set parameters of those variable.
    I want that they are have changed from 4mm to 10mm in steps of 0.5mm
    We get 169 combinations.

    

17. Step 17:

    No we must add constrain
    Click on appropriate field and add new sensor. We need to control simulation data – Max stress by VON in MPa for all model.

    

18. Step 18:

    Set parameters of this sensor. We need to value is in the range from 110 to 120 MPa.
    

    

19. Step 19:

    Add goal of this study
    We need to minimize weight of detail.

    

20. Step 20:

    After adding this parameter on screen we will see something like this.
    All parameter of study is set.
    Start it!
    ATTENTION: This study takes a lot of time and disk space on your PC. I have spent 16 GB of space

    

21. Step 21:

    In this attention window click “YES”
    

    

22. Step 22:

    After calculation you get table with results.
    Optimal parameters is: B1=4.5mm B2=9mm.
    Stress 115.467 MPa
    Weight 1.829 kg

    

23. Step 23:

    Optimized detail looks like this
    It took off weight by 20 percent
    It’s good result.