Week 2 Railwheel and Track
AIM:
Perform Advanced Structural Analysis on the Railwheel and Track setup Using ANSYS WORKBENCH.
OBJECTIVE:
Analyze the Railwheel and Track setup to find out their total deformation, equivalent stress and Life under load at Different Bearing loads and compare both the results.Implement a User defined result and calculate the Total Deformation.
GIVEN MODEL:
Rail-Wheel and Track Fig(1).
PROCEDURE:
Assign the material as structural steel for both the cases by, Selecting the Engineering data >> Edit >> Engineering data sources >> General Materials >> Structural steel.
*Properties of the structural steel is shown in below Fig(2).
Fig(2).
*After Assigning the material close the engineering data and open new space claim to make the required designs.
*Once geometry is imported from the space claim then open the model and eidt the geometry in Mechanical moduler.
*Assign the Contacts and targets according to the design model with contact type is Frictional, behavour is sysmmetric, Augmente Lagrange Formulation.
*After that Give all analysis setting in steps of time.
*Apply Displacement boundary condition to trace the wheel tranlation motion.
CASE-1
*Bearing load 100000N.
TOTAL DEFORMATION:
MAX:1001.1 (mm) and MIN: 0 (mm)
EQUIVALENT VON-MISES STRESS:
MAX: 180 (Mpa) and MIN:1.63E-12 (Mpa)
LIFE UNDER LOAD 100000 (N)
*Bearing load 500000N.
TOTAL DEFORMATION:
MAX:1001.1 (mm) and MIN: 0 (mm)
EQUIVALENT VON-MISES STRESS:
MAX: 672.18 (Mpa) and MIN:7.9915E-12 (Mpa)
LIFE UNDER LOAD 500000 (N) :
Max:1E6 and Min: 5066.9
COMPARING THE REULTS:
| SL.No | BEARING LOAD (N). |
TOTAL DEFORMATION Max (mm) |
TOTAL DEFORMATION Min (mm) |
EQUIVALENT STRESS Max (Mpa) |
EQUIVALENT STRESS Min (Mpa). |
Life Max. (cycles) |
Life Min.(cycles) |
| 1. | 100000 | 1001.1 | 0 | 180 | 1.63E-12 | 1E6 | 1E6 |
| 2. | 500000 | 1001.1 | 0 | 672.18 | 7.9915E12 | 1E6 | 5066.9 |
TOTAL DEFORMATION:
In Both the Cases the deformation does not changed much by changing the bearing load from 100000 to 500000 N.
EQUIVALENT (VON - MISES) STRESS:
The stress generated in 500000 N load is much more than 100000 N bearing load.
LIFE:
Under 100000 N load the Rail-Wheel and Track setup has more life than 500000 N due stress developed in case-2 is higher than the case-1.
CASE-2: User defined result and calculate the Total Deformation and compare inbuilt result by ANSYS for a load of 100000 N.
*In Every user defined result we have to mention Expression to calculate the results
User Defined details
TOTAL DEFORMATION :
MAX:1001.1 (mm) and MIN: 0 (mm)
COMPARIION:
*In Both the cases the total deformation results are approximately same i.e User defined result and inbulit ANSYS results are same.