Structural Analysis of the Railwheel and Track with different load setup using ANSYS

Objective: Structural Analysis of the Railwheel and Track Setup with the different case mentioned below:

Case 1: Multiply the bearing load by 5 times and compare the results with the load of 100000 N Compare the Total Deformation, Equivalent stress and the life under both the loads

Case 2: Implement a User-defined result and calculate the Total Deformation from this result and check if it is the same as that obtained by the inbuilt result by ANSYS for a load of 100000 N.

Model Given to perform the simulation:

Model Setup:

The material used- Structural steel

Contacts created:

Rail Track fixed to ground:

Frictional contact b/w wheel and track

Frictionless contact b/w bearing and wheel

Planar contact for wheel because it has motion in one plane as translational and rotational both.

Translational movement:

Meshing of 50mm and in the surface of contact b/w wheel and track face sizing of 35mm

Case 1: Bearing Load of 100000N Case 2: Bearing Load of 500000N

Analysis Settings

Case1: Total Deformation: Case2: Total Deformation:

Case1: Equivalent Stress Case2: Equivalent Stress

At 1e5 load At 5e5 load

At 1e5 load At 5e5 load

Case1 Life: Case2 Life:

At 1e5 load At 5e5 load

Results for 1e5 & 5e5 Load:

Load (N)	Total Deformation (mm)	Equivalent Stress (MPa)	Fatigue Life (Cycle)
1e5	998.9	166.83	5.4e5
5e5	999	659.6	3034

After increasing the load by 5X there is significant amount of increase in stress and a decrease in fatigue life. So have to take care of the material and manufacturing processes of a wheel.

The low-medium carbon Si-Mn-Mo-V steel was designed to make railway wheels by forging and rolling.

Case 3: User-defined expression for total deformation

After giving input of user-defined expression for total we can see that there is no difference in automated and user-defined results so one can conclude that the results we get in both the cases are accurate.