Week 8 - Universal Joint

Objective:

To perform a transient structural analysis on a double universal joint with a spring using three different materials: Structural Steel, Stainless Steel and Titanium alloy(They can all be found in the General Materials section) The three materials must be used on the joint with the springs alone. Use a refined mesh if possible for the academic license. You need to obtain the Equivalent stress and total deformation for all the three cases and compare them. Submit a report regarding the same.

Case setup and execution:

1. open transient structural.

2. import the geometry.

3. open mechanical module. Assign material as structural steel for case 1,stainless steel for case 2 and titanium alloy for case 3 on joints with spring.

4. Delete all default contacts and insert joints as below.

5. Set analysis setting as shown

6. apply joint load:

7. set mesh size as 4 mm. set adaptive meshing to no and smoothing to medium. then mesh the model.

8. run the solution.

Result:

1. Case 1:

Equivalent stress;

Total deformation:

Case 2:

Equivalent stress

Total deformation

Case 3:

Equivalent stress

Total Deformation:

Conclusion:

	Case 1	Case 2	Case 3
Equivalent stress max (Mpa)	1460.8	1413.4	715.8
Max total deformation (mm)	38.63	38.63	38.63

From table it can conclude that resistance offered by titanium alloy is lesser compared to structural steel and stainless steel.

Link: https://drive.google.com/file/d/1bIErSpv-IUf-aZ1eaci4Hs0cHW1iyAmj/view?usp=sharing