- [Instructor] In this video, we're going to be covering
adding fixtures to our part
and I do want to point out that every time I close
and open a SOLIDWORKS document,
SimulationXpress automatically gets turned off
so we are going to have to turn that on
every time we go back into a brand new part.
It's not going to show up with that tool bar shown for you
so I do want to point that out.
Now go up here to SimulationXpress one more time.
We already answered some of these questions
as far as our unit,
but they get reset automatically inside of SOLIDWORKS
so let's go back and make sure we're choosing
the inch pound second system and click OK
and then click on Next
and now we're down here into Fixtures.
So we have the option of adding a fixture
and it does give us a little bit of a warning here
saying you can add fixed holes or fixed versus supported
or fixed versus attached parts
in the full version of SOLIDWORKS Simulation.
However in this case here, we don't have that option.
We can only add very basic fixtures
so let me show you how to do it.
Click on Add a Fixture
and notice this face right here is green
and it's showing this one is fixed in,
the rest of the part is going to be flexing
and that's what we're going to be adding here.
So the top surface here,
that doesn't make any sense at all.
This back surface over here would make a lot of sense
if I clicked on that.
I could say hey I'd like to fix that entire surface.
Now if you were going to be gluing that surface
to a wall for instance,
that would be a really good way to do that,
but in this case here we're going to bolting it.
So because it's being bolted,
it's really not going to have an attachment
in this entire surface.
It's really just going to be compressed around these bolt holes
where that bolt is pulling things together
and there might be a washer on the other side
so you have to really think through
when you're adding a fixture to your part
how is it actually going to be attached
because even though SOLIDWORKS
is only giving you one option here of making it fixed,
that might not be the right option.
So the other option we have is instead of that face here,
well maybe I can say
the inside of each one of these holes would be fixed.
That's not entirely true either,
but it's getting better.
You're saying hey I'm constraining
the center part of that hole
and the rest of the bracket is going to flex,
but what we are forgetting about
is this thing is going to be mounted to a wall
that's going to be adding some type of support.
When I push down out here,
it's going to be pushing against the wall
towards the bottom here.
It's not just going to be floating in free air,
it's going to be attached to that wall
and that wall's going to be adding some support.
But in SOLIDWORKS SimulationXpress,
we don't have the option of analyzing multiple parts
all at the same time
so we just have to do the best we can
with the options we're given.
So in this case, let's start with this option here
and go ahead and click on OK and that's our fixture.
Now we can also add an additional fixture and that's fine
so click on Add a Fixture again.
This time I might say hey I want to do that entire face.
Maybe we are gluing it.
We're going to take some glue,
we're going to put it on the wall or the back of this,
maybe some epoxy and then we're going to bolt it on top of that
so you have a double method of attachment
and that's possible but if you're doing that,
just make sure that you are aware of what that means
when you're adding it.
Go ahead and click on OK and there's our fixtures.
Now you can always add more fixtures if you'd like to.
They show up over here on the left hand side.
If you want to get rid of them,
you can just say Edit Definition, Delete or you can Hide it
or you can click on Delete in your keyboard
if you have it selected so either one of those.
If you want to add or delete fixtures, that's how you do it.