Week 8 - Universal Joint
Objective: To perform transient structural analysis on a universal joint with 3 diffeerent materials and finding out Equivalent stress and total deformation.
Setting up the analysis: The geometry is imported and opened in ANSYS mechanical. A fixed joint is added to the spring side which is body to ground and twp revolute body to ground jooints and added on either joints.
Add body to body revolute joints at the pin joints where the mobile is universal joint and reference is pin joints, add 8 joints like this at 8 connections
Mesh: A 4mm mesh is used for the entire setup with medium smoothing
Analysis settings: 5 time steps are taken
Boundary conditions: Rotation with values from tabular data is given to the joint at the geared side.
Solution:
Case 1: When Structural steel is used
Total deformation
Equivalent stress
Case 2: Stainless steel
Total deformation
Equivalent stress
Case 3: Titanium alloy
Total deformation
Equivalent stress
Results:
| Material | Total deformation (mm) | Equivalent stress(Mpa) |
| Structural steel | 38.6 | 1464 |
| Stainless steel | 38.6 | 1419 |
| Titanium alloy | 38.6 | 722 |
Conclusion:
We can observe from above tabular data that Titanium alloy has least amount of stress compared to other materials