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  1. Bgoldstein

    license borrowing

    Has anyone experimented with the license borrowing utility in SW2005? I know that it allows you to check out a license, and then work off the network (works great for a laptop.) My question is if there is any way to borrow a license, and then use on a different computer - like my desktop...
  2. Bgoldstein

    CFD software

    You might also want to look at "easier" to use CFD packages, like CFDesign from Blue Ridge Numerics. No, it doesn't have all of the capabilities of a package like Fluent or Star-CD. However, it is MUCH easier to use, and cheaper. It has a great interface to Pro-E and SolidWorks, and has great...
  3. Bgoldstein

    Cosmos Question

    Just to second Nick, you can definitely run load and geometry cases in Cosmos. Just ran something overnight with 27 different geometry tweaks (playing with the effect of 3 different dimensions.) But don't plan on using your computer for anything else while the run is going. Brett
  4. Bgoldstein

    SW 2005 Question

    Just got word from our VAR that they are postponing their "What's new in SW 2005" by a month, due to SolidWorks delaying the release of 2005 to the end of August. Doesn't make me want to be one of the early adapters of the new release, as must mean they are still ironing out some major bugs.
  5. Bgoldstein

    Model to Drawing Association

    Not that I agree with changing filenames with revisions (we use PDM here), but you can use SolidWorks Explorer (located in the tools menu) to rename files. SW explorer will make sure that all assemblies (only in that directory or its subdirectories, I think!) that refer to the renamed part have...
  6. Bgoldstein

    Thermal CFD Analysis Software Perfomance

    If you've done much FEA, you've seen a "conformal" mesh. Basically, the old Flotherm and IcePak mesh was purely nonconformal rectangular - so if you had a round object, the mesh would not rotate to better match the geometry. Also, the grid "bleeds" out though the entire extent - if you have a...
  7. Bgoldstein

    Thermal CFD Analysis Software Perfomance

    I've got some experience with CFD packages for electronic cooling. I've used FloTherm briefly a few years (and versions ago). Back then it only had a non-conformal, rectangular grid, which I was very unimpressed with, though they might have changed since then. Have also used IcePak - at the...
  8. Bgoldstein

    Cosmosworks Cost

    I think you need the Cosmos/Works Professional package, which is the most basic one besides CosmosExpress (free in SolidWorks). I think cost is about $7k, not including training and annual maintance.
  9. Bgoldstein

    Forced Air Cooling

    That's can be a pretty involved problem, depending on how complicated the geometry is. You should be able to do it using some standard equations, but anything complicated will need CFD. The easiest thing to calculate is the outlet air temperature: Air temperature rise = (heat added to air)/ [...
  10. Bgoldstein

    AR qty on a bill of materials?

    Does anyone know how to get a quantity of AR (for "as required") to show up on a solidworks BOM? This would be for things like epoxy, solder, heatshrink, etc - consumables. I have our BOM templates set up to show things like our part #, description, etc. (all tied to PDM), and would...
  11. Bgoldstein

    PDMWorks display problem

    Appeng, If you taught the PDMWorks class in Raleigh, NC, than I was there!
  12. Bgoldstein

    Inventor & Ansys vs Solidworks & Cosmos

    And another option - use Ansys with SolidWorks. Ansys now has a pretty decent interface with SW that is worth checking out. So if you do decide to go to SW, probably worth your time to get an evaluation copy of both Ansys and Cosmos to see which you like better.
  13. Bgoldstein

    PDMWorks display problem

    Have had the same problem - the instructor in the PDMWorks class I took a month ago had the same problem when showing something to the class! Only solution I know of is to restart SW.
  14. Bgoldstein

    Torque values?

    I'm certainly not an expert on this, but I've always seen english torque values expressed in "distance"-"force", such as in-lbs and foot-lbs. Of course, metric seems to be the exact opposition of this, with N-m.
  15. Bgoldstein

    Solid Works for ANSYS

    I don't know about the most common, but I've used Ansys with Solidworks, and it is a nice interface. One of the key things to me (from my standpoint as a Design Engineer, others may disagree) about a good interface between CAD and FEA is the ability to parameterize geometry in the FEA software...
  16. Bgoldstein

    Thermal Modeling Software

    I've looked a little at Cosmos FloWorks - as long as your problem is relatively simple (no mixed phase stuff, no combustion stuff, etc.), then that would work pretty well. Easy to use from SolidWorks. I've never used Cool-it, but from their web page descriptions it might be a good fit -...
  17. Bgoldstein

    Thermal Modeling Software

    I've used several diffent CFD (computational fluid dynamics) packages, but they can be pretty pricey. What kind of budget do you have, and what CAD software are you using? FEM packages are great at modeling conduction, but if you have any type of convection (forced or natural) inside your...
  18. Bgoldstein

    Starting with Bernoulli's Equation...

    Well, as best as I can remember it (I don't currently have a copy of Steinberg - borrowed it from a coworker at my last job) all Steinberg is doing is treating the flow path as a series of pipes. So all of the different parts of the flow, like constrictions and bends, have head losses...
  19. Bgoldstein

    Starting with Bernoulli's Equation...

    There is a good book by Steinberg, called "Cooling Techniques for Electronic Equipment". He goes through some pretty in-depth calculations of exactly what you are looking for, with duct constrictions, bends, expansions, splitting (when passing over several circuit boards), going...
  20. Bgoldstein

    PDMWorks affects the sw right click menu?

    I've seen this happen occasionally with PDM/Works too. We just got PDM, and are playing with it on a couple of computers until we fully migrate over. Happened several times in the training class, but only a couple of times at the office - mouse cursor would disappear, pull down menus were...

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