cal in autohydro

Discussion in 'Software' started by hello, Feb 24, 2005.

  1. hello
    Joined: May 2004
    Posts: 38
    Likes: 1, Points: 0, Legacy Rep: 16
    Location: china

    hello Junior Member

    how can i calculate hydrostatic in different trim condition in autohydro?
    it looks so hard.
    must i input a trim data,then cal the hydrostatic with command--GHS?

    and how can i calculate it in different heel condition in autohydro?
     
  2. ABoatGuy
    Joined: Aug 2004
    Posts: 206
    Likes: 6, Points: 0, Legacy Rep: 79
    Location: LeftCoast

    ABoatGuy Member

    Set the desired trim with the TRIM command. (You could use the DRAFT command instead)

    Set the desired heel with the HEEL command.

    Then the HS command (not GHS) will give you hydrostatics at the trim and heel you have set. HS ignores the VCG and lets you roll the boat around anyway you like.
     
  3. hello
    Joined: May 2004
    Posts: 38
    Likes: 1, Points: 0, Legacy Rep: 16
    Location: china

    hello Junior Member

    yes !
    it can be calculated!
    thank you so much!

    but why is it "hs",not "ghs"?
    what different between these two command?
    do you have some booklet about how to use autohydro?
     
  4. ABoatGuy
    Joined: Aug 2004
    Posts: 206
    Likes: 6, Points: 0, Legacy Rep: 79
    Location: LeftCoast

    ABoatGuy Member

    Check the help file for both commands. Pretty good explanation of the difference there.
     
  5. hello
    Joined: May 2004
    Posts: 38
    Likes: 1, Points: 0, Legacy Rep: 16
    Location: china

    hello Junior Member

    yes
    i have found it
    thank you aboatguy

    but
    could you explan then different bitween "frozn","spilling"
     

  6. ABoatGuy
    Joined: Aug 2004
    Posts: 206
    Likes: 6, Points: 0, Legacy Rep: 79
    Location: LeftCoast

    ABoatGuy Member

    In reference to tanks: Basically,

    The surface of the liquid in a frozen tank does not move as the vessel trims or heels (as if it were frozen).

    A spilling tank is similar to a normal tank until the surface of the liquid passes a predefined reference point. At that point the contents "spill" from the tank and the load is decreased. Unlike the real world, tanks 'unspill' if the angle is decreased.

    Check help file under TYPE (I believe).
     
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