Stability of Barge and

Discussion in 'Stability' started by PeterJamtgaard1, Dec 9, 2006.

  1. PeterJamtgaard1
    Joined: Dec 2006
    Posts: 1
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Kenosha, WI

    PeterJamtgaard1 New Member

    Hello Group,

    My first post here. Greetings.

    I have a question, regarding wave excitation of a barge.

    I have a Very large 102'x276'x22' barge weighing 1718 LTons or 1924 Tons.

    It is basically a box, I have been given

    KG = 10.59ft

    I calculated the draft as

    T = 2.19*ft
    KB = 1.1 *ft
    BM = 395*ft
    KM = 396*ft
    GM = 386*ft
    K = 0.42*B = 42.84*ft

    and Period of Roll

    T= 2.42*s (This seems very short)

    The barge is to be moved on Lake Michigan, with a building on top of it.

    I have the period of 5s between waves and possibly wave height of 6 ft worst case.

    I was wondering if any of you with Naval Architecture software could look at these numbers and let me know if they are close, and if you could help me locate the formula's to calculate the maximum angle of tilt that these waves will cause on the barge.

    Any help would be greatly appreciated.

    Peter Jamtgaard
  2. CDBarry
    Joined: Nov 2002
    Posts: 795
    Likes: 33, Points: 28, Legacy Rep: 354
    Location: Maryland

    CDBarry Senior Member

    Talk to Glosten Assoc in Seattle - barge voyage risk is what they do.
  3. Guillermo
    Joined: Mar 2005
    Posts: 3,644
    Likes: 188, Points: 63, Legacy Rep: 2247
    Location: Pontevedra, Spain

    Guillermo Ingeniero Naval

    There are rules from the different Classification Societies on this. I use Bureau Veritas ones at the office, but I will only be able to give you a clue on them after Dec the 26th, sorry. Maybe you could ask them directly.

  4. vishnubaiju
    Joined: Mar 2006
    Posts: 61
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: India

    vishnubaiju Junior Member

    High GM value

    When the GM is very high the rolling period will be very small and the barge becomes stiff.
    What is the vaue you are taking for the breadth? 102' OR 276'
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.