If doing a thermal analysis of a 19" x 6 foot high enclosure, with a computer mounted in it, would you select "external" analysis if you wanted to see how hot the inside of the computer was getting? There would be an exhaust fan mounted at the top of the 6 foot high enclosure. The computer...
When it is time to create the drawing, I plan to bring in the dimensions from the model. I want the model and the drawing to be parametric. I was just wondering if you could locate holes in the model from the default edges that CREO dimensions from and then later while you are still working in...
In Creo 4.0 if you know that you want your finished model to be parametric and to have holes located as basic dimensions coming from particular datums, do you have to create the model as such initially, or can you just locate the holes in the model using the linear dimensions coming from the...
In CREO 4.0 if you are creating a model and you locate a hole from one edge of a part and then later use the Geometric Dimensioning tool and locate the same hole with a basic dimension from a different edge of the part, which dimension will appear on the drawing if you use the "Use Model...
I am dimensioning a part that has holes put in on the front side and the back side. I am using basic dimensions for the hole locations and true positional tolerancing. Once I show Datums B and C for the surfaces of the part in the front view, is it OK to show them again in the rear view of...
Thank you 3DDave. So if I am solving for the Hole Diameter MMC in Plate 1. Is this correct? Hole Diameter MMC in Plate 1 = Largest allowable Position tolerance diameter of clearance hole in Plate 1 + Projected position tolerance of tapped hole + Fastener Diameter MMC.
and then for Plate 2...
I have 3 alum plates bolted together using two bolts several inches apart. I have clearance holes in each of the two top plates. They are then placed down on top of the third plate, which has two tapped holes for the bolts. Is this a valid equation for determining the size of the smallest...
1. If a chiller is designed to provide 3 gpm at 80 psi and we have a pressure drop of 20 psi in the equipment cabinet we are cooling, would you still have 3 gpm flow through the copper tubing in the equipment cabinet?
2. When our equipment is turned on and heat is being generated and...
Sorry 3DDave. There is no front door. Only a rear door. Since this is a cabinet that is in the lab, I am thinking that instead of doing some sort of calculations all I really need to do is take some temperature readings where the air exists the fans in the equipment items. If the air...
Thanks 3DDave. So I plan to use 1.005 for the thermal capacity of air because the cabinet is at room temperature approx.
What units will the volume of air be in?
I need to do a thermal analysis to make sure that the electronic equipment items in a 6 foot tall metal cabinet are not getting too hot when they are all running. The cabinet has solid walls on two sides, a door on the rear and a top. There is no front door. The equipment is placed into the...