Bollard Pull Calculator for Ships (Excel Engine)

Discussion in 'Software' started by thenavalarch, Jan 26, 2014.

  1. thenavalarch
    Joined: Oct 2013
    Posts: 88
    Likes: 15, Points: 8, Legacy Rep: 43
    Location: Singapore

    thenavalarch Junior Member

    Hi

    Following the success of Bollard Pull Calculator for Barges, www.thenavalarch.com introduces an Excel Engine for Bollard Pull calculations for Ships, i.e., a conventional ship-shaped vessel.

    It rigorously calculates all the forces on the vessel, viz.

    1. Calm Water Resistance: It is calculated using the established Holtrop and Mennen formula

    2. Wind resistance: Based on Wind Height and Shape coefficients from ABS MODU rules, and corrected for wind direction.

    3. Wave Resistance: From DNV Rules for Marine Operations, and corrected for forward vessel speed using Faltinsen, 1990

    4. Propeller resistance and Hawser resistance: From US Navy Towing Manual


    Very useful in Marine Operations. It can be used to accurately predict the bollard pull to tow a vessel. The tug can be accordingly selected.

    A youtube video demo can be found here:


    http://www.youtube.com/watch?v=S73s4dapS8o&feature=youtu.be


    To download, go to:

    http://www.thenavalarch.com/bollard-pull-calculator-ships/


    Write to:

    thenavalarch@gmail.com
    info@thenavalarch.com
     
    1 person likes this.
  2. hersegovia
    Joined: Oct 2009
    Posts: 4
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Pto. Ordaz, Venezuela

    hersegovia New Member

    Bollard Pull Excell worksheet

    Hi, I am designing a tug/pusher and will like to see the excell sheet but was unable to download it. Should you please forward to me thru e-mail hersegovia@gmail.com
     
  3. ericyu
    Joined: Jan 2015
    Posts: 2
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: PERTH

    ericyu New Member

    i think he is selling the spreadsheet.......
     
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