- [Instructor] We've set up the loads and boundary
conditions, we're now ready to run the analysis.
We can select Run This Study.
That will launch the analysis.
When it's complete, we can see results down here.
We can see a default stress one is our vonMises stress plot.
If we look at the big end up here,
hit space bar and go to that.
We can see we've got a realistic detail stress distribution
around the big end here.
Now, that's in contrast to the previous course,
when we ran the con rod model, but there we can strain
the big end fully to ground, we just essentially
super-glued it down.
There were no meaningful stresses in the region
in that case.
Here, we're able to look at the big end and little end
stresses simultaneously.
If we go to the center of the model,
we zoom in,
we can see that there are no local stress concentrations
around where we applied the constraints.
This is our fundamental check to make sure the three
two one method has worked and the reaction forces
are very small.
We can see that here because there are no local stress
concentration points.
But we can also look explicitly at the reaction forces
if we right mouse click on Results
and choose List Result Force.
Make sure that the Reaction force option is selected.
We can have our reaction forces displayed relative
to our basic coordinate system, which we set up as being
in the front plane.
Now we want to pick the three vertices which form
the reaction points.
We find the first vertex.
Find the second vertex.
And then, the final vertex.
With the three vertices selected we can click on Update.
Let's go to a full view, so hit space bar,
go to standard.
Now we can see the label boxes indicating the reactions
at our three constrained points.
We can see this is the three constrained position.
We can see the three arrows here.
We've got FX, FY, FZ,
and they are very, very small.
They're summing to pound .006 pound force
out of something like 20,000 that we applied.
This is the two directions here, so, FX and FZ.
Again, tiny reaction forces.
And again, FX, a tiny reaction force.
So we've confirmed both in terms of the actual numbers
we see, then visually, that the three two one method
has worked, it has balanced about the center line
with tiny, little reactions, and hence,
no stress concentrations.
Close out of the Result Force.
What we can do also now is to check our deflections.
Right mouse click on Results.
Define Displacement Plot.
Now, this has got to be a contour plot as opposed
to a deformed shape plot.
Click on that.
Let's choose here, for the direction, or the component,
let's choose the axis placement, which is going to be,
actually, we're going to set our user defined value to 30.
Click okay.
Now we can see our deformed shape plot and our contours
in the actual sense.
Minimum here, minus .006.
Maximum here, .013.
We can see a stretching clearly relative to the zero
and the datum center line we've defined.
The big end is stretching .0013.
The positive sense, little end stretching minus .006.
So the little end is clearly the stiffer of the two
connecting points, it has less deflection.
Now, in that case, the dominant deflection is axial,
so we can't really see the influence
of the lateral directions in the deformed shape plots,
in other words, the Y and the Z deformations.
For a component that does have significant deflections
in all three translational degrees of freedom,
it's important to visualize these deflections relative
to the datum constraint degrees of freedom.
So at that point, let's just save our file SolidWorks model.
Let's save it off as con_rod_advanced_13.
So, in this video, we've seen the results of using
the three two one method.
A balanced load gives accurate stresses at both the big end
and the little end.