- [Narrator] In this video, we're going to be looking
at the Displacement Plot inside a SimulationXpress
and figuring out what it really means to us.
So the first thing I want to do of course
is go up to SimulationXpress, let's fire that up.
We've got a few different Fixtures and Loads
that have been modified here, so let's go ahead
and fix everything up that we need.
As far as a Fixture, over here you can see I've got one
and it's got a problem because it's no longer relevant.
Let's go ahead and choose the inside of these holes
as the Fix Face, so let's go ahead and choose those
click OK alright there it is and then our Force looks okay,
let's go ahead to Next, Next, the material's okay,
click on Next one more time and let's go ahead
and run that simulation.
Now you can see here, we're getting some flexing
of the sheet metal piece and that's pretty much
exactly what we were expecting.
Click on Yes and we've already looked at the
von Misses stresses on other parts, but we can now see
what's happening here assuming that we're holding
this sheet metal bracket by these holes here
and this is kind of how it's going to be flexing
and deforming and where those stresses are going to be applied.
Now go over here to the Displacement Plot
and you can see what's happening here
and we want to analyze a simple question,
is this what's really going to happen in this part?
And that's subjective, so I want to point that out
that you can see here, we're applying a load
and it's saying this piece here is going to be
much higher stress or much more displacement
then the other pieces in the design.
However it's probably not the case,
because it's more then likely there's another one
of these brackets over on the other side, somewhere else
and there's some kind of a beam going between them.
And that beam is not necessarily bending downwards,
but it's more pushing straight down.
In that case you have more flex or more force
somewhere down this region over here.
So keep in mind, even though the computer has these
pretty pictures with all these colors and displacements
you have to realize and analyze the results based upon
what that bracket's being used for.
The computer in this point in time does not know
we have another bracket, it only knows about
this bracket right here, we're applying a uniform force
across that entire surface and we're trying to
push down on it and this is what's happening.
But in the real world, more then likely,
this is actually going to see slightly different
types of forces because it's being supported on both sides
and it's a uniform straight down load.
So keep in mind when you do see your Displacement Plot,
you want to make sure that that's exactly what
you're expecting and if it's not, you might want to
reevaluate or you might want to look at
a different type of analysis.
Inside a SimulationXpress we don't have
a lot of options here but that might mean
if you do see a lot of displacement or a lot of stresses
that you might want to look into the full version
of simulation to get a more complete analysis
or the ability to run multiple parts
in an assembly and analyze them all together.
I also want to point out that these graphs here
are exaggerated, you can see the deformation scale
right up here, it's a 167 times what it really is,
so the computer is showing us in a much exaggerated shape.
More than it would actually be deformed in real life.