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9 Bien^bcf DitN DAN KHOA HQC & C6NG NGH£: y^ GlCil THIEU P H A N M E M NAPA tfNG DUNG CHO TINH TOAN HA THUY TAU TREN DA (The introduction of NAPA Software applied to calculation of launching a ship on the slipway) •:• KS NGUYEN DAC TRONG Cong ty c d phan Vinashin - TU vdn d a u tU building factories in Vietnam such as Nam Trieu Tom tdt bai bao: Npi dung bai bdo gidi thieu qua ve giao Shipbuilding Factory, Pha Rung Shipbuilding dien va md ta cdc tinh ndng tfng dung ciia phan Factory, Bach Dang Shipbuilding Factory and mem cdng tdc ddng mdi tau thiiy Phin so on v v ) Nganh cdng nghiep ddng tau la mpt sdu mem ddc biet di sau vao htfdng ddn tinh todn thiiy tau tren da, qua dd giiip cac nha thie't ke nganh kinh te bien dtfdc Nha ntfdc tfu tien phdt tau Cling nhtf thiet ke cdng trinh da hieu rd hdn trien Trong cdc nha may ddng tau thi cdng tac ve qua trinh thiiy de tdng ndng sua't va an thiiy dtfdc tfu tien hang dau, quyet djnh de'n stf toan cho tau, cong trinh Phan mem da dtfdc bai cua tau, dd da la cdng trinh tfng dung tinh todn thiiy cho nhieu loai tau dang diing phd bie'n cdc nha mdy ddng tau cac nha may ddng tau d Viet Nam nhtf: Viet Nam hien Phan mem NAPA dtfdc xay dtfng nham hd trd ddc life cho nganh ddng tau ddc Nam Trieu, Pha Rtfng, Bach Ddng v v biet la cdng tdc thuy Bai bdo xin gidi thieu ddi Summary of the article: (The content of this article aims to introduce chiit ve phan mem tinh todn thiiy va vdi the interface briefly and describe the applicable nhffng ndi dung chinh sau: - Tdng quan ve phan mem tinh todn thiiy features of the software in manufacturing new - Thi du tinh todn thiiy tau 76.600dwt ships This software especially concentrates on - Ke't luan va kie'n nghj instructions on calculations of launching a ship on the slipway Thereby this helps ship designers Tong quan ve phan mem tmh toan h^ and building designers better understand the thuy process of launching a ship in order to increase 1.1 Gidi thieu ve phdn mem the productivity and safety of ships and building Phan mem NAPA la phan mem dtfdc thie't This software has been applied to calculation of kera't nhieu modul cho nganh ddng tau ma nhieu launching a wide variety of ships in the ship- ntfdc tren the gidi hien dang suf dung de: ••f.»fe^=3J^M7 ^-m^mii a Screen # b Screen # c Screen # Hinh I: Giao dien phan mem NAPA (Screen # 1-3) 60 sd thdng & 10 ndm 2009 ^ Biln^ci a) Tinh toan bp tinh ndng ciia tau (hien cdc cd quan thiet ke va dang kiem qudc te dang diing) b) Xay dtfng dtfdng hinh ddng ciia tau c) Cdc modul phan tinh todn ciia tau: Thuy life; dung tich; md hinh tau; kiem nghiem chtfc DIEN DAN KHOA HQC & CONG NGHE nang thiiy ddng hpc ciia tau d) Tinh toan ve cac trang thdi tai trpng e) Tinh todn dn dinh tau f) Tinh todn ve trang thiet bj tren tau g) Tinh todn ve trpng Itfdng thep ciia tau h) Tinh todn ve thiiy a Screen # b Screen # c Screen # Hinh 2: Giao dien phan mem NAPA (Screen # 4-6) 1.2 Gidi thieu modul tinh toan thiiy (Launching) Tinh todn thuy tau dtfdc hieu nhtf la cdeh tinh todn stf djch chuyen cua tau theo phtfdng dpc dd xet tdi trtfdng hdp phan ldi ndi trtfdc Stf djch chuyen ciia tau bat dau ttf diem mdc chua'n tdi vj tri tau rdi khdi da ndi len tren mat ntfdc va dtfng lai, qua trinh dtfdc chia cdc giai doan Trong ttfng giai doan thi phan mem in cho ket qua lien quan a) Giai doan 1: Ttf tau bdt dau chuye'n dpng tren da va diem cudi ciia giai doan xac djnh phan ldi ndi, giai doan cdc dai Itfdng lien quan dtfdc tinh todn vdi phtfdng true X nhtf: Ltfdng re ntfdc cdn ctf theo thtfdc ldi cua tau; khoang djch chuye'n ciia tau; md men lat; mdmen gay trtfdt; van td'c ciia tau di chuyen; cao dp tam nghieng ngang ciia tau b) Giai doan thii 2: Diln ra't ngdn ke ttf tau rdi khdi da cdc dai Itfdng lien quan dtfdc tinh todn theo phtfdng true X sau day: Ltfdng re ntfdc cdn ctf theo thtfdc ldi ciia tau; khoang each djch chuye'n ciia tau; phan life tdc dung len day tdu; van td'c ciia tau di chuyen; cao dp tam nghieng ngang ciia tau; dp life dau tau c) Giai doan thii 3: Giai doan cudi dtfdc xdc djnh tau ndi hoan toan va chuyen ddng cham dan, giai doan ket thiic tau dtfng Sd thdng & 10 ndm 2009 han, cdc dai Itfdng tinh todn lien quan de'n giai doan la: Vj tri tau ndi {tdm nudc, goc xoay tdu, dudi sdng tdu) ; van td'c djch chuyen ciia tau; cao dp tam nghieng ngang ciia tau; khoang cdeh dtfng ciia tau Trong giai doan va dpng hpc tinh todn thiiy tau theo Enkvist, NSTM-59 cd the xdc dinh dtfdc quy dao diem tha'p nha't ciia tau 1.3 Cdc dU lieu chudn bi cho miidul tinh todn lia thuy a) Cdc thdng sd ve da Cac thdng so' da ve nguyen tdc cd ban phai dtfdc chuan bj va nghien ctfu: Md ta ve dtfdng trtfdt ; mang trtfdt; he so kinh nghiem life can chuye'n dpng ciia tau b) Cdc thdng so tdu Kich thtfdc hinh hpc lien quan den tam ndi; cdc kich thtfdc cua tau ndm tren da; trpng Itfdng va trpng tam tau; ddc tinh ciia gid trtfdt c) Cdc thong so chudn bi khdc Cac thdng so' ciing het stfc quan trpng dien bien qua trinh thiiy tau: Mdng trtfdt va gd'c toa dp chua'n AP xac djnh vj tri tau ndm tren da; he so'ma sat ciia vat lieu trtfdt; thiiy trieu (chpn mtfc ntfdc thiiy) Ta't ca cac tham sd dtfdc Itfu vao modul LNDATA, dff lieu se cap nhat cdc thdng so thay ddi 61 DitN D A N KHOA HQC & C N G NGHf 1.4 Cdc dff lieu cd dinh a) Da trtfdt Mdt nha mdy ddng tau cd the cd mpt bode nhieu da trtfdt khdc nhau, ne'u chi cd mdt kieu da trtfdt thi tham so' cd the nhap mdt lan, rdi ttf ddng cho Ian tinh sau Neu cd nhieu da khac can cd stf phan biet cho stf dung nhtf ddt quy tfdc ten de thuan tien origin at the a n d of theal^nray Hinh 3: Md ta phuc vu qud trinh stf dung chtfdng trinh DEFINE SLIPWAY name, text; SLOPE beta DEPTH h; CWFmu Ddt ten dd tdu diing chuang trinh Gdc nghieng thiet ke cua dd ddm bdo tu truat cua tdu Chieu cao h duac xdc dinh tit mUc nudc hg thiiy de'n miit dd He soma sdt thiet bi mdng truot mu duac xdc dinh Id kl, k2, k3; hdng sd hay CV/F theo cdng thiicc sau: mu = kl -\-k2*(x/xl -k3)**2 Vdi X Id khodng cdeh di chuyen vd xl Id khodng cdeh diem xoay tdu bat ddu xoay neu x > xl thi x/xl = 1.0 Neu CWF khdng cho thi chuang trinh se mac dinh gid tri: kl =0.018, k2=0.0625, k3=0.4 GROUND(x 1, z 1), (x2, z2) Cao ddt tu nhien khu nUdc trUdc dd theo quy Udc ddu chuang trinh b) Mdng truat Mdi mpt tau tinh todn thuy Itfa chpn ket ca'u mang trtfdt khdc thi khai bdo theo DEFINE DRAG name; Khai bdo thiet bi mdng truat vdi ten INTOSYSDB WEIGHT w; Trong luang thie't bi mdng truat CWFmu; He sd ma sdt thie't bi mdng truat c) Siic cdn thuy lUc Neu thiiy tau khdng bd tri thie't bj ham thi stfc can thuy life dtfdc tinh theo cdng thtfc sau: - Khi tau trtfdt tren dtfdng trtfdt F = vl*vl*D**(2/3)/((Kl*D/Q + K2)*g) - Khi tau rdi khdi dtfdng trtfdt F = vl*vl*K3*D**(2/3) Kl=l 1.25; K2=0.675; K3=0.004 la cac he so thtfc nghiem Ne'u thuy tau bd' tri thie't bi ham thi stfc can thiiy life se ldn hdn each xdc dinh tren 1.5 Thong sdtdu Cdc thdng sd tau dtfdc xdc djnh cho cdng tdc tinh todn nhtf kich thtfdc hinh hpc, khd'i tam, vi tri bd' tri tau tren dtfdng trtfdt xdc dinh ttf ban dau SHIP name; Ten tdu thiiy HULL gm-name; Kich thudc hinh hoc cua tdu, khdi tdm, vi tri bdtri tdu tren dudng truat xdc dinh tit ban ddu duac to hap thdng sd sdGM (tdm nghieng ngang ciia tdu) 62 sd thdng & 10 ndm 2009 DitN DAN KHOA HQC & C6NG NGHt SLIPWAY name; Ten dd diing de thuy tdu POSITION xap, zap.alpha; Vi tri tdu nam tren dudng truat vdi tham sd the hien xfp, zfp, xap: tinh tH AP tdi miit dudng truat zap: chieu cao sd'ng tdu tai vi tri AP xfp: vi tri xud't hien dp luc ddu tdu len mut dudng truat zfp: chieu cao sd'ng tdu tai vi tri FP alpha: gdc nghieng CG (cgx, cgy, cgz) Trong tdm tdu WEIGHT Ql, Q2, Q3, Trong luang tdu thiiy WEIGHT(Ql,Q2,step); WBR cwr, X, z ; Ne'u tdu thiiy cd lap them thie't bi cdn, stfc can thuy life dtfdc xdc djnh theo cdng thtfc sau: F = cwr * t * vl *vl cwr : Id he sd site cdn thdy luccda thie't bi cdn t : Id luang re nUdc tiic thdi cua thie't bf cdn vl : van td'c tdu BED name, xl, x2, y, b; Dinh nghia cdc dai luang nhu sau xl, x2 tog diem cud'i vd diem ddu cua mdng truot theo he true X x2 gid thie't tgi vi tri FP (dp luc ddu tdu) y:k/cdch tit tim doc tdu tdi mep dudng trUOt 1.6 Cdc dinh nghia khdc Cdc thdng so dtfdc djnh nghTa sau day cd the thay dd'i ttfng giai doan ciia qud trinh thuy SHIP name; Ten tdu tinh todn hg thuy USE DRAGS name ,xst 1; Viec lUa chon vi tri mdng truat dd tdu duac xem nhu mot phdn ca name2, xst2 bdn vdn de tinh todn hg thiiy vd duacgan vdi he tog lap tic tdu dang ndm cd dinh tren dudng truat Gidi gid tri X Id khodng dich chuyen cua tdu tinh tit diem bdt ddu gdn vdi he tog ndi tren USECWFcfl,cf2,cf3; He so ma sdt duac dinh nghia dudng truat md khong thay ddi mot sd trudng hap thi phdi thay ddi bdng cdu triic lenh USE CWF mu; He sd'nay duac xdc dinh nhu hang sd'mu hay theo cdng thiic tinh He sd cdn ciia nUdc duaditu vd thay the thudng xuyen bdi mot USECWRwrl,wr2,wr3 cdc tri sdwrl, wr2, wr3 Chieu cao sdng la muc nudc so vdi muc nudc binh thudng Ne'u TIDE h ; gid tri mat di coi nhu gid thie't chieu cao sdng la 0.0 Khd'i luang rieng cua nUdc bien tgm lay rho (/)= 1.0 RHO rho (y); Xud't ke't qud tinh todn vd in ke't qud bie'n doi gid tri x giiia cdc XINTERVAL dx; khodng lien tuc He tog tinh todn hg thiiy Id viec xdc djnh cdc diem md tgi dd OBSERVATION(x,y,z) ; luang re nUdc xud't hien, thong qua dinh hai vi tri diem AP vd FP duac xdc djnh tit ddu Tinh todn ke't qud duac bat ddu nd cd the cho ke't qud cd the thUc CALCULATE case; hien duac hodc tuang tu nhu ke't qud sau dd, ke't qud duac xudt thdnh files dCt lieu vd in ke't qud cud'i ciing In ke't qud chgy chuang trinh d tren ke't qud se duac \uu tu ddng PRINTER case; vd duac luu vdi ten lenh CALCULATE 1.7 Cdu trUc cdu lenh phu trff DISCRIPTION type name; In cdc thdng tin mieu td (SLIP, SHIP, DRAG) Sd thdng & 10 ndm 2009 63 Bien^bcJ DigN DAN KHOA HOC & C N G NGHf: EDIT type name; Hieu chinh cdc thdng tin mieu td (SLIP, SHIP, DRAG) 1.8 Cdu tnic cdu lenh dgc biet a) Modul chung cho toan chtfdng trinh Hieu chinh he sd ma sdt truat tren dudng truat CWF; He sd ma sdt trUOt tren dUdng truat cd the Id hdng so mu hay duac CWFmu; xdc dinh theo khodng cdeh dich chuyen mu = cfl + cf2*(x/xlCWFcfl,cf2, cf3; cf3)**2 vdi X Id khodng cdeh dich chuyen; xl Id khodng cdeh tgi thdi diem tdu xoay so vdi diem bat ddu, mac dinh cdc gid tri efl=0.018; ef2=0.0625; cf3=0.4 CWR; Hieu chinh he so site cdn thiiy luc CWR wrl,wr2,wr3; Site cdn thuy lUc duac tinh theo edng thite sau tdu vdn d tren dudng truat F=v**2*DSP**(2/3)/(wrl*DSPAV+wr2)*g) Khi tdu noi hodn todn F=v**2*wr3*W**(2/3) vdi v: Id van td'c tdu; DSP: Id khodng cdeh dich chuyen; W: luang tdu; wrl = 11.25; wr2=0.675; wr3=0.004 Ten chon eiia mdng truat •- » DRAG name ; Dinh nghia ten dd SLIPWAY: SLIPWAY name, text ; Ten dd Name: Viet cha (tuy chon) Text: b) Modul dinh nghia da truat DEPTH d; Chieu sdu khu nude trude dd duac xdc dinh tii mUe nUdc hg thiiy SKIP ; Huy bd dinh nghia SLOPE sip ; Do dd'c dudng truat tinh bdng Thi du tinh toan vdi tau 76.600dwt Vdi phan mem NAPA tren tdc gia da dp dung tinh todn cho tau hang 76.600dwt tren da vdi mifc ntfdc thuy +3.0m (he hai dd) Vdi cdc thdng so tau va da nhtf sau 2.1 Thong sdtdu - Chieu dai tau ldn nha't - Chieu dai tau giffa dtfdng vudng gdc - Chieu rpng ldn nha't - Chieu cao man - Trpng tai tau thiiy - Mdn ntfdc day tai - Mdn ntfdc lai khdng tai - Mdn ntfdc mui khdng tai 2.2 TItdng sodd - Dp dd'c dtfdng trtfdt + Dp dd'c ban mat da + Cao tnnh dinh da + Cao trinh miit da + Cao dp phan mat da nam ngang + Chieu dai dtfdng trtfdt + Chieu dai phan nam ngang + Chieu rpng be da + Khoang each tam dtfdng trtfdt + Chieu rpng dtfdng trtfdt 64 Lmax = 225.0m Lpp = 215.0m Bmax = 32.26m Hn,an= 19.39m Q = 13100T 14.1m 4.06m 1.3m 1:20 1:20 + 12.15m - 1.0m + 11.15m 263.0m 10.5m , , 42.2m 10.0m 2.0m > '-.( Sd thdng & 10 ndm 2009 i Bien^d DitN DAN KHOA H O C & CONG NGHt 2.3 Qua trinh tinh todn vd ket qud NapaOy '; NAPA/D/LAU/061130 BK76/B V1NASH1N76 These results are based on the following data: Launching DATE 2009-04-06 TIME 9:48 AM USERADMI Slipway PR Ship PR_01: geometry is based on the object HULL position of AP: x=42.5 mfromafter end of ways,z=lm above slipway position of FPOP: x=237.5 mfromafter end of ways,z=lm above slipway angle of keel relative to the slipway = deg center of gravity in ship coord.system:x=100m,y=0m,z=14m weightl3100t after end of bed 12 mfromthe origin, fore end at FPOP; breadth m Drags: Seawater density 1.013 t/m3 Height of tide 0.00 m Coeff of friction constant mu==0.0405 Water resistance coefficients wkl=11.25, wk2=0.675, wk3=0.022 Symbols used in the foUowmg Ust: X : S : TAP : TFPOP: V : BUOY: MFEP: MAEW: ATM : DREW: PAPOP: PFPOP: GM : LOAD: position of AP from after end of ways (m) distance travelled from starting point (ra) draught at AP (m) draught at fore poppet (m) velocity (m/s) buoyancy (t) moment of buoyancy about fore! poppet (tm) moment of buoyancy about after end of ways (tm) anti tipping moment (tm) distance of launching pressure resultant from the end of ways (m) press at APOP (t/m2) press at fore poppet (t/m2) GM apparent (m) load against bed (t) X S TAP m m m - TFPOP V BUOY MFEP MAEW tm m m/s t tm 42.4 0.0 1.48 -8.27 37.4 5.0 1.73 -8.02 32.4 10.0 1.981 -7.77 27.4 15.0 2.231 -7.52 22.4 20.0 2.481 -7.27 DATE 2009-04-06 TIME 9:48 AM USERADMI Launching NapaOy NAPA/D/LAU/061130 BK76/B VINASHIN76 0.0 1.0 1.3 1.6 1.9 Sd thdng & 10 ndm 2009 42.8 82.5 140.8 220.9 327.7 7564 -2574 14421 -4736 24295 -7693 37604 -11464 54997 -16164 ' ATM DREW tm m 1852036 1784456 1716081 1646891 1576773 PAPOP PFPOP GM t/m2 t/m2 m 141.84 15.6 137.08 15.4 132.42 15.2 127.87 14.9 123.45 14.4 17.9 18.0 18.0 18.2 18.3 -14.02 -13.94 -13.85 -13.71 -13.32 65 I Bien^cl DitN D A N KHOA HQC & CdNG N G H £ 474.1 78234 -22334 1505185 17.4 25.0 2.73 -7.02 2.0 666.6 108120 -29951 1432150 12.4 30.0 2.98 -6.77 2.2 907.1 144727 -38638 1358045 7.4 35.0 3.23 -6.52 2.3 1195.7 187864 -47875 1283389 2.4 40.0 3.48 -6.27 2.5 1531.5 237201 -57100 1208746 -2.5 45.0 3.73 -6.02 2.6 1914.5 292534 -65797 1134630 -7.5 50.0 3.98 -5.77 2.7 2343.9 353550 -73447 1061562 -12.5 55.0 4.23-5.52 2.7 2819.6 420013 -79551 990039 -17.5 60.0 4.48-5.27 2.8 3341.8 491791 -83612 920561 -22.5 65.0 4.73 -5.02 2.9 3910.5 568675 -85131 853623 -27.5 70.0 4.98 -4.77 2.9 4525.6 650431 -83615 789721 -32.5 75.0 5.23 -4.52 2.9 5187.8 736991 -78554 729364 -37.5 80.0 5.48-4.27 3.0 5896.6 828067 -69451 673048 -42.5 85.0 5.73 -4.02 3.0 6651.9 923458 -55806 621275 -47.5 90.0 5.98 -3.77 3.0 7453.5 1022935 -37124 574539 -52.5 95.0 6.23 -3.52 3.0 8302.9 1126540 -12852 533393 -57.5 100 6.48 -3.27 3.0 9199.4 1233986 17507 498333 -62.5 105 6.73 -3.02 3.0 Stem lifts at s= 105.8 At the pivoting point - load at fore poppet 38681 -buoyancy 9231.91 - center of buoyancy from AP 60.74 m - moment of buoyancy about fore poppet 1236735 tm - draught at AP 6.72 m 119.21 13.9 18.5 115.19 13.2 18.7 111.38 12.4 18.9 19.1 107.81 11.4 19.3 104.49 10.3 19.5 101.44 9.1 19.7 98.69 8.0 19.5 96.30 7.6 19.4 94.34 7.0 19.4 92.89 6.2 5.0 19.5 92.10 3.5 19.8 2.18 20.3 93.43 1.6 21.1 96.35 0.0 0.0 23.3 101.75 0.0 30.7 111.19 145.2 127.76 0.0 -12.53 -11.47 -10.29 -8.99 -7.63 -6.37 -5.09 -3.76 -2.35 -0.98 0.40 1.80 3.34 4.81 6.23 7.67 9.17 - draught at fore poppet -2.98 m X m -67.5 -72.5 -77.5 -82.4 -87.4 -92.4 -97.4 -102.4 -107.4 -112.4 -117.4 -122.4 -127.4 -132.4 -137.4 -142.4 -147.4 66 S m TAP m TFPOP V BUOY m m/s t GM m 110.0 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 6.66 6.52 6.38 6.24 6.10 5.95 5.79 5.64 5.48 5.31 5.14 4.97 4.80 4.63 4.46 4.29 4.11 -2.77 -2.52 -2.27 -2.02 -1.77 -1.52 -1.27 -1.02 -0.77 -0.52 -0.27 -0.02 0.23 0.48 0.73 0.98 1.23 9.84 3693 10.24 3618 10.86 3536 11.43 3444 12.13 3343 12.89 3229 13.60 3101 14,56 2954 15.60 2783 16.75 2583 17.79 2346 18.84 2063 19.70 1727 20.28 1351 20.77 954 21.20 543 21.57 122 3.0 3.0 3.0 3.0 2.9 2.9 2.9 2.9 2.9 2.9 2.8 2.8 2.8 2.8 2.7 2.7 2.6 9406.5 9482.1 9564.5 9655.7 9757.0 9870.5 9999.0 10146.4 10317.0 10516.9 10754.3 11037.0 11372.6 11749.4 12146.4 12557.0 12978.1 LOAD t sd thdng & 10 ndm 2009 Bi^n^d DitN DAN KHOA HQC & C6NG NGHt The ship floats off the ways at s=191.4 Floating position draught= 2.52 m trim = -3.09 m (TA=4.06, TF=1.3) heeling= deg GM = 21.67 m X S V X m m m/s m -152.4 195.0 2.6 -157.4 200.0 2.4 -162.4 205.0 2.3 -167.4 210.0 2.2 -172.4 215.0 2.1 -177.4 220.0 2.0 -182.4 225.0 2.0 -187.4 230.0 1.9 -192.4 235.0 1.8 -197.4 240.1 1.7 -202.4 245.1 1.6 -207.4 250.1 1.6 -212.4 255.1 1.5 -217.4 260.1 1.4 -222.4 265.1 1.4 -227.4 270.1 1.3 -232.4 275.1 1.2 -237.4 280.1 1.2 S m V m/s -242.4 285.1 -247.4 290.1 -252.4 295.1 -257.4 300.1 -262.4 305.1 -267.4 310.1 -272.4 315.1 -277.4 320.2 -282.4 325.2 -287.4 330.2 -292.4 335.2 -297.4 340.2 -302.4 345.2 -307.4 350.2 -312.4 355.2 -317.4 360.2 -322.4 365.2 -327.4 370.2 1.1 1.1 1.0 1.0 0.9 0.9 0.9 0.8 0.8 0.8 0.7 0.7 0.7 0.6 0.6 0.6 0.5 0.5 The ship stops at s=375.2 Ke't luan va kien nghj 3.1 Ke't luan Vdi ke't qua tinh todn cdc gia tri dp life tren dtfdng trtfdt; viing xua't hien dp life mui tau; quang dtfdng tau djch chuye'n trtfdc dtfng han; mdn mui vd mdn ldi tau sau tau ndi hoan toan v v Ke't qua khd chinh xdc so vdi nhffng gam tau ttfdng tif da thiiy cong tren da cd thdng so' gid'ng vdi thdng so' da thi du tinh todn, chtfng td phan mem cd dp chinh xdc cao nen dp dung rdng rai 3.2 Kie'n nghi Vdi phan mem cd dp chinh xdc cao nhtf vay ngoai cdc ky stf nganh ddng tau da va dang stf dung thi cdc ky stf nganh thiet ke cdng trinh thiiy nha't la thie^t ke cdc da tau nen nghien ctfu va tfng dung vao thie't ke^ cdc cdng trinh da, da bdn u de dam bao tinh tie't kiem hieu qua an toan cho cdng trinh TAI LIEU THAM KHAO PGS.TS Pham Van Giap (chu bien), TS Nguyen Ngoc Hue, Th.S Bach Difdng Cong trinh ihuy cong nha may dong tau Nha xua't ban Xay difng 2007 PGS Pham Van Thtf, Th.S Nguyen Van Ngoc Cong trinh thuy cong nha may dong tau thuy va stfa chffa tau thuy -l Tai lieu \\Su hanh npi bo "PhUcJng phap tinh thuy tau tren da" cua Vien khoa hoc cong nghe tau thiiy thuoc Tap doan Cong nghiep tau thuy Viet Nam Tuyen tap tap chi Cong nghiep tau thuy Viet Nam so hang thang Tuyen tap ban tin Cong nghiep tau thuy Vi^t Nam so hang tuan Design of dry docks, locks, slipways and shipbuilding berths, shiplifts and dock and lock gates - BS 6.149 Sd thdng & 10 ndm 2009 67 ... mdt kieu da trtfdt thi tham so'' cd the nhap mdt lan, rdi ttf ddng cho Ian tinh sau Neu cd nhieu da khac can cd stf phan biet cho stf dung nhtf ddt quy tfdc ten de thuan tien origin at the a n... wrl = 11.25; wr2=0.675; wr3=0.004 Ten chon eiia mdng truat •- » DRAG name ; Dinh nghia ten dd SLIPWAY: SLIPWAY name, text ; Ten dd Name: Viet cha (tuy chon) Text: b) Modul dinh nghia da truat... Do dd''c dudng truat tinh bdng Thi du tinh toan vdi tau 76.600dwt Vdi phan mem NAPA tren tdc gia da dp dung tinh todn cho tau hang 76.600dwt tren da vdi mifc ntfdc thuy +3.0m (he hai dd) Vdi cdc
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