Creo Simulate Tutorial - Thermal and Mechanical Analysis

hello everyone today I'm going to show you a basic thermal analysis so what I've done is I've started here with a simple extruded shape and I'm imagining this is some a young a finned cooling fins in a computer so here I've got 95 by 55 overall with three fins at five millimeters thickness and so this will allow us to apply a few different um heating loads we do our solid model again you can apply symmetry into the methods to it best way is to start with the thermal mode and in here we got some different loads and boundary conditions we can put on first things first put the material on it I'm going to give it a you mininum so it's good at done for cooling fins and I put some heating load so the heating load not going to apply to the bottom surface here and that in watts and we might say that we've got 300 watts feet okay then we might also say we've got conviction on the Finns Beck's on the vertical fins and we'll give that it's what's per meter squared let's say that tongue this is going to be 50 the bulk temperatures the air variable sighting some computers so I meant to be 30 degrees and we've got a different conviction for horizontal surfaces like that only 25 watts per meter squared again both temperatures we're aiming for 30 what you starting with these vertical surfaces on the sides as well all righty um and then we've got a measured temperature boundary condition on the base here let's say that that's at let's say that that's 120 degrees and let's say top now let's see if we can just run that as these okay so we're doing thermal and we run this analysis under though it's a new steady-state thermal Thermal pins okay let's take very long you can just apply the temperatures so you've got 120 degrees here and you can see it's cooling as it gets to the top and we got a hundred degrees surface temperature at the top now the problem might be we want to we want to reach a specific temperature at the top ear so we might have to increase the convection rate or we might we might turn enlarge this area of the fin to enlarge the amount of conviction that can go on because it's what's 4 meter squared so we add area to this vertical surfaces of the fins to increase our lung reduction in temperature but that's a design problem so once you run a thermal analysis you can go to the structural analysis and put in your structural loads and then you can add on under loads here your thermal loads so then the strain due to your thermal analysis will be added on so that's what it's important we see why it's important we do this thermal analysis first and the reference temperature we might just say it's 25 degrees atmosphere right so then we can go through a typical static analysis so we might have that's fixed and and we let's just pretend that we've got some kind of forces on these fins as well maybe we've got some bending force in the X 100 Newtons all right you can see here in our loads the thermal loads will be added in with our mechanical loads and constraints this mechanical alright so we let's try to run that so we had a static analysis they look at this dresses and some displacements they as you can see it's expansion due to heat it's restrained here in X Y & Z so it's not allowed to expand so you can see a curvature in the corner there and we can see some bending due to that side load there and then expand ship up judith even was running from 200 to 100 degrees so there's a thermal expansion there alright so that's how you combine the static and thermal together you could change this and have a look at this placement say and the choice with a maximum displacement so okay thank you

Channel: Joshua Peauril

Views: 24,869

Keywords: creo, simulate, FEA, tutorial, thermal, engineering

Id: Q_WlZpPLllI

Length: 8min 44sec (524 seconds)

Published: Mon May 18 2015