Week 8 - Universal Joint

Aim: To perform a transient structural analysis on a double universal joint with a spring

Software: Ansys 2021 R1

Summary

Objective

Procedure for setup

Results

Conclusion

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.

To find out the total deformation and equivalent stress for each case.

Introduction:

This project is about performing transient structural analysis on a double universal joint. Double Universal Joints can be created from two single joints by pinning or butting the hubs together, or specially designing the double joints with a single center section, to eliminate additional machining and assembling.

Procedure for setup

Open ANSYS>>Drag and drop transient structural model in the project schematic window.

Go to the engineering data to choose the materials: Structural Steel, Stainless Steel and Titanium alloy.

Go to the model tab

Rename the different as required

Go to Geometry tab to assign masterial

Go to connection >> contacts

Remove all the cantacts

Add all the joints of the assembly

Go to tab for the meshing:

For the meshing choose the values as follows:

The following analysis settings are defined for the simulation.

Set the joint load as follows:

Go to solution tab and insert Total Deformation and Equivalent Stress

Results

Case 1: Using Structural steel

Total Deformation

Equivalent Stress

Case 2: Using Stainless steel

Total Deformation

Equivalent Stress

Case 3: Using Titanium alloy

Total Deformation

Equivalent Stress

Summary table

Case using	Total Deformation (mm)	Equivalent Stress (MPa)
Structural steel	38.637	1676.1
Stainless steel	38.637	1621.4
Titanium alloy	38.637	817.35

Conclusion

Through this simulation, we notice that the total deformation remain the same regardless the three materials used but stress is high in the case of stainless steel and low when using titanium alloy.