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  • Users: brianpaul
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  1. brianpaul

    Test time reduction - Ask any vibration guy

    I have a question. I'll keep it brief to not lead the response. However I would like to learn some of the background to the response. Regarding durability testing on shaker tables, here is the question (please fill in the blank): If you ask any vibration guy in the world the underlying...
  2. brianpaul

    Test time reduction - Ask any vibration guy in the world

    I have a question. I'll keep it brief to not lead the response. However I would like to learn some of the background to the response. Here is the question (please fill in the blank): If you ask any vibration guy in the world the underlying premise of test time reduction through amplitude...
  3. brianpaul

    SAE equivalent ASTM A 656?

    Actually I need the fatigue data for A 656, but if there is a SAE equivalent, perhaps it is in my material database. Is there any site that just lists equivalencies? And a broader question is if you don't have fatigue data, and you don't have an equivalent's fatigue data, what is the best way...
  4. brianpaul

    Strain Gauge Surface Prep - Why Higher Grit?

    The engineers in our group are having a discussion as to how to convince our tech's they need to be increasing their sand paper fineness when they prepare surfaces for installing gages. (Instead of arguing, it is some times easier to convince.) Everything I find in the literature make your...
  5. brianpaul

    TurboCAD - Online Tutorial? (AutoCAD background)

    I'm forced to use TurboCAD, first time today. Not allowed to install AutoCAD. I have an AutoCAD background, but when I try to do simple things in TurboCAD (like move an object from a snap-to-point to a snap-to-point) all kinds of crazy junk happens. And I still don't get done what I want...
  6. brianpaul

    Matlab vs. Fortran

    I recently went through the rigor of converting an old Fortran code (77, 90?) to a matlab script. The program is supposed to analyze 45,000 data points, using a couple nested while loops. (FORTRAN code uses several nasty GOTO statements to jump backwards and forwards.) Compiled Fortran...
  7. brianpaul

    deflash methods

    My company is using a Chinese manufacturer to produce the small polycarbonate parts we use in our prototype mechanical devices. The parts are intended to work closely with each other, where tolerances in the micrometer range are important. The production quality parts made by the our...
  8. brianpaul

    meshing together seperate parts with different material types

    Alright, I'll admit I don't know how to do something that should be very simple and basic for everyone else who knows how to use I-deas. I'm a newbie and I can't find this in the tutorials or help files. I have two parts. A small piece of steel glued inside a bulky block of epoxy. I want to...

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