Week 2 Bevel Gear Challenge

Report Week 2 Bevel Gear

Aim:Perform a grid dependency test for the Bevel gear simulation for the following mesh sizes

case 1: 6 mm

case 2: 5mm

case 3: 4 mm

Solve for Von-Mises stress, Equivalent elastic strain and Total Deformation using the previously mentioned mesh sizes.

Grid dependency test is and its use:

Grid dependency test is to investigate how the solution depends on the grid size by running the simulation with refined mesh that is finer the mesh, higher is the accuracy of the result but with additional cost on computation time and computational power. Since, solutions are interpolated at the nodes to get an approximate result, higher the number of nodes and elements higher is the computational time and power required to complete the simulation.So, the grid dependency test helps in determining optimal mesh size where the accurate result could be obtained keeping in the mind the cost of time and power.

Procudure:

Import geometry:

Cut material:

Contact:

Joint:

Mesh: Size 6mm but in contact area 1.75mm

Analysis setting

Joint Moment:

Joint Rotation:

Result:

Total deformation:

Equivalent Stress:

Equivalent Strain:

Case 2:

Mesh:

Size 5mm but in contact area 1.75mm

Result:

Total deformation:

Equivalent Stress:

Equivalent Strain:

case 3:

Mesh:

Size 4mm but in contact area 1.75mm

Result:

Total deformation:

Equivalent Stress:

Equivalent Strain:

Conclusion:

Mesh size Total Deformation Equivalent Stress Equivalent Elastic Strain

6mm 47.843 4.7282 2.6395e-5

5mm 47.843 4.0058 2.1706e-5

4mm 47.843 3.5226 1.8877e-5

Total deformation are the same in all 3 cases. However, equivalent stress and equivalent elastic strain is decreasing. More finer mesh can be developed to get a more accurate result.