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    Ras Gas Company Limited: Rg.A Auxiliary Diesel Generator Project

    Uploaded by

    Reda Elawady
    This document contains calculations for the design of lifting lugs on an auxiliary diesel generator enclosure and subframe with the tag PT-Y-9111. It calculates bending and shear stresses on potential lifting lug designs based on the total weight of 27500kg for the generator components and dynamic load factors. The calculations show the stresses meet the allowable limits according to Lloyd's Register code for lifting appliances in a marine environment.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    Ras Gas Company Limited: Rg.A Auxiliary Diesel Generator Project

    Uploaded by

    Reda Elawady
    99 views4 pages
    This document contains calculations for the design of lifting lugs on an auxiliary diesel generator enclosure and subframe with the tag PT-Y-9111. It calculates bending and shear stresses on potential lifting lug designs based on the total weight of 27500kg for the generator components and dynamic load factors. The calculations show the stresses meet the allowable limits according to Lloyd's Register code for lifting appliances in a marine environment.

    Original Description:

    Lugs Calculations

    Original Title

    Lugs Calculations

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    © © All Rights Reserved

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    This document contains calculations for the design of lifting lugs on an auxiliary diesel generator enclosure and subframe with the tag PT-Y-9111. It calculates bending and shear stresses on potential lifting lug designs based on the total weight of 27500kg for the generator components and dynamic load factors. The calculations show the stresses meet the allowable limits according to Lloyd's Register code for lifting appliances in a marine environment.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    99 views4 pages

    Ras Gas Company Limited: Rg.A Auxiliary Diesel Generator Project

    Uploaded by

    Reda Elawady
    This document contains calculations for the design of lifting lugs on an auxiliary diesel generator enclosure and subframe with the tag PT-Y-9111. It calculates bending and shear stresses on potential lifting lug designs based on the total weight of 27500kg for the generator components and dynamic load factors. The calculations show the stresses meet the allowable limits according to Lloyd's Register code for lifting appliances in a marine environment.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 4

    RAS GAS

    COMPANY LIMITED
    RG.A AUXILIARY DIESEL GENERATOR PROJECT
    PONumber

    0923-D5648-DD240272

    Equip.Name/ Tag No:

    PT-Y-9111

    DocumentTitle:

    Enclosure& Sub FrameLifting Lug Calculations

    DocumentType:

    Calculation

    DocumentNo.:

    PT-Y-9111-749

    Vendor DocumentNo: cALC009

    t-.

    05/06/09

    Approved for Construction

    NR

    DC

    NR

    11t02t09

    lssued for Review

    NR

    DC

    NR

    13/01/09

    lssued for Review

    NR

    DC

    NR

    By

    ckd

    Appr

    Rev.

    t/9zt;

    Date

    RevisionDescription

    JRMEHL
    JRMEHLProjectNo: D5648

    TILSLEY& LOVATTLIMITED

    sP60398

    \)

    \i t,

    $\

    ,"o!-de

    Document No. PT-Y-9111-749 / Rev. 0 / Page 1 of 4

    McD

    tr
    Lyt'

    McD

    ]ALCS BY:

    DATE:

    V.RUDGLEY
    TITLE:
    LiftineLue DesienCalculations

    e:
    A:

    CALCULATIONSHEET
    PROJECT:SP60398
    R.J.McDERMOTT(RAS GAS)
    CHECKEDBY:
    D.CLOWES

    DATE:

    Deg
    mm

    B:
    C:

    nm

    dl:
    d2:
    E=

    mm dia

    F:
    G:
    H:
    J:
    K:

    Totalweiqht:
    Engine:7830k9
    Alternator:14300k9
    Baseframe:
    4160k9
    Coupling:
    260k9
    Hydraulicstartmodule:950k9

    Document No. PT-Y-9111-749 / Rev. 0 / Page 2 of 4

    ]ALCS BY:

    CALCULATION SHEET
    PROJECT:SP60398
    R.J.McDERMOTT(RAS GAS)

    DATE:

    {.RUDGLEY
    IITLE:

    CHECKEDBY:
    D.CLOWES

    -ifting Lug DesisnCalculations

    DATE:

    Load conditions
    Total weight= 27500kg:
    Dynamicload factor= 2

    269.8kN

    Centerofgravity offsetby l0%


    Eve loadine
    Verticalstaticloadon lifting eye:269.8kN/ 4:

    67.5kN

    Dynamicloadvertical:67.5kNx 2:

    135kN

    Correcteddynamicloadvertical: 135x 1.2:

    162kN

    VerticalloadcomponentFv:

    162kN

    HorizontalcomponentFh: Verticalstaticload+
    (Verticalstaticloadx 0.05)
    Inline componentFi = 162I Sin90:

    Note:
    Slingsto be vertical
    duringlifting

    283.3kN
    162kN

    Usinga partialsafetyfactorfor a live load of 1.6


    DesignloadFi: l62kNx 1.6:

    259.2kN

    DesignloadFh:283.3kNx 1.6:

    453.3kN

    Bendins stress on plate due to inline load component Fi

    MomentM:259.2kN x 0.19m:
    SectionmodulusZ on lifting lug: (50 x332') / 6 :
    Bendingstress
    o =M lZ:

    49.2 kNm
    0.9185
    xl06mm3
    53.6 N/mm2

    NOTE
    LloydsRegistercodefor lifting appliances
    in a marineenvironment:clause4.2.13o mustbe <0.45og
    og yield stressfor grade 5355 carbon steel:
    Therefore 355N/mrn?x 0.45 =

    355 N/mm'?
    159.75N/mm'?

    Bendingstresso:53.6N/mm'?whichis < 159.75N/mm'


    ThereforeStressis acceptable

    Document No. PT-Y-9111-749 / Rev. 0 / Page 3 of 4

    l'

    SALCSBY:

    CALCULATION SHEET
    PROJECT:SP60398
    R.J.McDERMOTT(RAS GAS)

    DATE:

    N.RUDGLEY
    TITLE:

    CFIECKEDBY:
    D.CLOWES

    Lifting Lug DesignCalculations

    DATE:

    Bendinsstressdueto horizontalFh load component


    MomentM:453.3kN x 0.19m:
    SectionmodulusZ on lifting lug : (50 x3322) I 6:
    Bendingstresso :M / Z:

    86.1kNm
    915.53x103mm3
    93.7N/mm'

    As perNOTE above
    Bendingstresso:93.7N/mm'?whichis < 159.75N/mrn3
    (seeNOTE above)
    ThereforeStressis acceptable
    Shearstress@ liftine lue eve
    Sheararea: K x A x 2 : 77 x50 x 2 :

    7700mm2

    ShearstressT(Fi):259.2kN I 7700mm2:

    33.7N/mm2

    LloydsRegistercodefor lifting appliances


    in a marineenvironment:clause6.3.3Tma,\mustbe < 54N/mm'
    Shearstresst (Fi) :33.7N/mm2which is < 54N/mm,
    ThereforeStressis acceptable

    Document No. PT-Y-9111-749 / Rev. 0 / Page 4 of 4

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