Week 7-Long Piston With Cam
Long Piston With Cam
AIM
To run the analysis for Long piston with Cam on a total of 3 different cases with change in friction terms and provide the inference on the output.
Objective
To find and compare the results of Equivalent stress, directional deformation, Equivalent elastic strain, and contact pressure in all cases.
For this challenge, you will have to perform a transient analysis on a piston and cam mechanism model that has been provided to you. You 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. Find out the Equivalent Stress, Directional Deformation and Equivalent Elastic Strain and compare them for all the three cases. Give an inference as to why the results vary between cases.
CASE 1
Frictionless contact
CASE 2
Frictional with 0.1
CASE 3
Frictional with 0.2
CASE 1
Frictionless contact
Import the model.
barrel
And barrel cam
select the material.
Strainless steel.
And open the model panel.
In connection panel connect
1st contact = cam follower to barrel
contact size = frictionless
2nd contact = cam follower to barrel cam
contact size = frictionless.
Joint
Fixed joint
Ground to barrel
trationational = barrel to cam follower
revolute
mesh
face sizing = 3mm
Analysis setting
step = 9
stabilization = consstant.
Energy disstabilization = 0.1
large deformation = on.
initial time step = 0.1
minimum time step = 5e-2
maximum time step = 0.3
joint rotational
CASE 2
Frictional coefficient with 0.1
Import the model.
barrel
And barrel cam
select the material.
Strainless steel.
And open the model panel.
In connection panel connect
1st contact = cam follower to barrel
contact size = frictionless
2nd contact = cam follower to barrel cam
contact size = frictionless.
Joint
Fixed joint
Ground to barrel
trationational = barrel to cam follower
revolute
mesh
face sizing = 3mm
Analysis setting
step = 9
stabilization = consstant.
Energy disstabilization = 0.1
large deformation = on.
initial time step = 0.1
minimum time step = 5e-2
maximum time step = 0.3
joint rotational
CASE 3
Frictional coefficient with 0.2
Import the model.
barrel
And barrel cam
select the material.
Strainless steel.
And open the model panel.
In connection panel connect
1st contact = cam follower to barrel
contact size = frictionless
2nd contact = cam follower to barrel cam
contact size = frictionless.
Joint
Fixed joint
Ground to barrel
trationational = barrel to cam follower
revolute
mesh
face sizing = 3mm
Analysis setting
step = 9
stabilization = consstant.
Energy disstabilization = 0.1
large deformation = on.
initial time step = 0.1
minimum time step = 5e-2
maximum time step = 0.3
joint rotational
Solve the solution
Directional Deformation
Equivalent Stress
Equivalent Elastic Strain
CASE 2
Frictional coefficient with 0.1
Directional Deformation
Equivalent Stress
Equivalent Elastic Strain
CASE 3
, Frictional coefficient with 0.2
Directional Deformation
Equivalent Stress
Equivalent Elastic Strain
RESULT
Perform a transient analysis on a piston and cam mechanism model that has been provided to you. You 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 Directional deformation Strain Stress
Frictionless contact 10.405MAX 0.0019529MAX 387.96MAX
Frictional with 0.1 10.977MAX 0.0075433MAX 1491.9MAX
Frictional with 0.2 11.086MAX 0.0090202MAX 1788.7MAX