Week 7-Long Piston With Cam
OBJECTIVE:-
We have to perform a transient analysis on a piston and cam mechanism model that has been provided need to run the analysis with Frictionless contact, Frictional with 0.1 and 0.2 as the frictional contact for a total of 3 cases.
CASE SETUP AND EXECUTION:-
1. First open the Ansys workbench.
2. Go to toolbox select the analysis system and double click on the transient structural it opens a new tab on the graphical area as shown below.
3. Next click on the engineering data select the required material.
4. Next import the geometry in geometry.
5. Right-click on the geometry and click on the edit space claim it opens the new space claim tab as shown below.
6. Check the geometry it is fine to leave it or any error in the geometry fix them.
7. Next go to the model click on the edit mechanical model it opens a new tab as shown below.
GEOMETRY
Barrel
Barrel_cam
Cam_follower
CONNECTIONS
Contacts
JOINTS
MESH
TRANSIENT
ANALYSIS SETTINGS
JOINT
8. Right-click on the solution selects the solve the analysis is started.
RESULT OF CASE 1:-
DIRECTIONAL DEFORMATION
EQUIVALENT STRESS
EQUIVALENT ELASTIC STRAIN
RESULT FOR CASE2:-
Contacts
Frictional 0.1
DIRECTIONAL DEFORMATION
EQUIVALENT STRESS
EQUIVALENT ELASTIC STRAIN
RESULT FOR CASE3:-
FRICTIONAL CONTACT 0.2
DIRECTIONAL DEFORMATION
EQUIVALENT STRESS
EQUIVALENT ELASTIC STRAIN
COMPARISON
| CASES | DITRECTIONAL DEFORMATION |
EQUIVALENT STRESS (MPA) |
EQUIVALENT STRAIN (MPA) |
| CASE1 | 50.8 | 410.17 | 0.0020668 |
| CASE2 | 50.8 | 527.6 | 0.002661 |
| CASE3 | 50.8 | 725.06 | 0.0037473 |
CONCLUSION:-
On observation, case1 gives the best result compared to the remaining cases due to the absence of friction. so the coefficient of friction increases the stress and strain also increases