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  1. 6767jk

    PDA (Case Method)

    I am still hoping to find out the ansewer to my question on the 20 of January. Please respond soon
  2. 6767jk

    PDA (Case Method)

    In the PDA manual Appendix 4 page A-11 it is discribing 4 effects at time x/c<t<tL/c is there a better explanation out there?
  3. 6767jk

    PDA (Case Method)

    When you are looking at the FV how do yo tell from the graph end bearing and tension and compression?
  4. 6767jk

    PDA (Case Method)

    I having a problem finding pracice problems. Dose any one know of any good papers, web sites, or books?
  5. 6767jk

    PDA (Case Method)

    If my zV an F are not proportionate. How do I correct my wave speed so they are?
  6. 6767jk

    PDA (Case Method)

    How many differnt case are there? I think I have them all but I Not sure. Fix end - compression 2x top force Free end- high tension Infinit pile-no return wave
  7. 6767jk

    PDA (Case Method)

    Why is the resultant divided 2(R/2)when the downward compression way meets the shaft friction? Why is it not some other ratio which would be dependent on the value of the upward friction?

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