Week 2 Railwheel and Track
Question given :
Perform a static structural analysis on the Railwheel and Track setup and
Case 1: Multiply the bearing load by 5 times and compare the results with the load of 100000 N (As done in week 2 video). 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.
Aim:
To simulate the given rail wheel and given realistic results .
Software used :
ANSYS WORKBENCH 2021 R2
Procedure :
Import the model from the skill lync and open in the mechcanical model .
Assign the material property in the engineering data as structural steel .
Mesh the component and name it as defined so we can identify the material tag easily .
Now assign contacts from wheel to rail as friction contact as its going to have a movement through the track with the friction coeffiection of 0.3 .
Then to the shaft and rail wheel establish frictionless contact .
As we have the bearing in the wheel bearing load should be given as -1e^5 N .
Now coming to connections there are many condtions given
- Fixed condtion
- Transitional joints
- Planar joint
Load condtions are taken as bearing load as 100000 n and joint load (displacement ) as 100 to 500 N divided to five load steps and given tabular data .
Go to sloution information in the results as total deformation, equvalent elastic strain and equivalent stress .
If required we can add user define results in the output table .
material propety of structral steel
Run the simulation and exact the results for all given data from the question .
conduct a prameteric study for the bearing loads for 5 steps and user define results for total deformation .
FOS calculation of the part is done to verifty the is it passing the expected limit
FOS= maxmium stress / yeild stress
= 97.798/ 250 =0.391192
REsults:
The given material should have fos more the 1 atlest to pass the safety condtion as per the fos the marerial strenght should be increase and validated again .