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  1. frankyg

    Building a Shaker

    That is generally the conclusion I have reached as well. Obviously there are people that devote all their time to designing this equipment, so for us to design one in our spare time for less money seems unlikely. Regarding the slip table, I was was not aware of this problem. Our products can...
  2. frankyg

    Building a Shaker

    Just a few more questions: what is the main impracticality in building a basic shaker? It seems like from the mechanical/hydraulics standpoint it wouldn't be unreasonable, but the programming would be the most difficult. I could see how costs would add up real fast on the hydraulics though. What...
  3. frankyg

    Building a Shaker

    I was wondering if anyone has any experience building their own shaker tester. Commercial units are way out of our price range, and we would like to step up from our antiquated mechanical shaker. I have been investigating both electrodynamic and servo-hydraulic shakers. Servo-hydraulic seems to...
  4. frankyg

    estimating work hardening

    I have been doing FEA for several years now, but have yet to determine an accurate way to calculate the actual material properties on formed bends. Does anyone have any methods of calculating the change the yield strength of steel goes through after a bending or stamping process? Thanks
  5. frankyg

    Statics question

    That was what I originally tried, and running my equations in an equation solver gave me different results every time I ran it.
  6. frankyg

    Statics question

    Just to clarify the problem a bit, I will try to draw the FBD. V-------------------^-------V----------^ 120 lb V=downward load ^ = upward load all unknown except the 120 lb load
  7. frankyg

    Statics question

    Hi, This is probably a very basic question, but it's been a long time since I took statics. I have a body with 1 known force and three unknown, all acting in the Y direction. Can I figure this out by summing the Y forces and the moments at 2 different points, or is this ambigious? Based on...

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