集裝箱船螺旋槳設(shè)計計算說明書

1、.HPE：弋:bd“。集裝箱船螺旋槳設(shè)計計算說明書班級：船舶11-3學(xué)號：1102120324姓名：孫凱凱指導(dǎo)老師：劉大路二”“De:1.已知船體的主要參數(shù)設(shè)計水線長Lwl=91.6垂線間長Lpp=90.0m型寬B = 16.7m設(shè)計吃水T = 5.3m排水體積 =6253.2m3排水量 = 6409.6t方型系數(shù)C B=:0.785槳軸中心距基線高度Zp = 1.90m棱形系數(shù)Cp = 0.790由模型試驗提供的船體有效馬力曲線數(shù)據(jù)如下:航速V (kn)1011121314有效馬力PE (hp)76310661535225419222.主機(jī)參數(shù)主機(jī)功率Ps=2900kw主機(jī)轉(zhuǎn)速N = 755

2、r/min轉(zhuǎn)向右旋減速比i=3.355:1傳遞效率n s=0.97(已將減速箱考慮在內(nèi))3.相關(guān)推進(jìn)因子伴流分?jǐn)?shù)w = 0.3425推力減額分?jǐn)?shù)t = 0.275相對旋轉(zhuǎn)效率n R = 1.0船身效率H二口 =1.10271 -w4可以達(dá)到最大航速的計算0.97采用MAC四葉槳圖譜進(jìn)行計算。取功率儲備 10%軸系效率n s螺旋槳敞水收到馬力Pd= 0.9PS s r=0.9X 2900X 1.36X 0.97X 1.0=2531.7hp231r/min3.355根據(jù)MAU4-40 MAU4-55 MAU4-70的JBp - S圖譜列表計算項目單位數(shù)值假定航速Vkn11121314Va=(1-w

3、)Vkn7.23257.898.54759.205BP=NE0.5/Va2.596.352677.51663.45852.726JBF9.8168.2397.9667.261MAU4-403106.597.589.883P/D0.5620.5750.5920.612n o0.4510.47750.5050.525Pte =Pd n h n ohp1712.2611812.8701917.2771993.208MAU4-55310696.588.581.8P/D0.5980.6150.6350.655n o0.43320.460.4870.51Pte =Pd n h n ohp1644.6821

4、746.4301848.9381936.260MAU4-703104.595.587.580.67P/D0.60.6180.6380.661n o0.421.44750.47250.495Pte=FD n h n ohp1594.5671698.9731793.8871879.311據(jù)上表的計算結(jié)果可繪制PTE、3、P/D及n。對V的曲線，如下圖所示從PTE f(V)曲線與船體滿載有效馬力曲線之交點，可獲得不同盤面比所對應(yīng)的設(shè)計航速及 螺旋槳最佳要素P/D、D及耳。如下表所列。MAUVmaxP/DDn o4-4013.910.5885.63.300.534-5513.780.62385.63.

5、270.4964-7013.710.63184.93.220.4795空泡校核按柏利爾空泡限界線中商船上限線，計算不發(fā)生空泡之最小展開面積比。槳軸沉深 hs =T Zp=5.1 1.90=3.2mpo pv = pa + 丫 hs pv = 10300+1025 X 3.2-174=13406kgf/m2計算溫度 t = 15 C ,Pv = 174kgf/ m 2 , PD =3443.1hp, p = 104.63kgfs 2/m4序號項目單位數(shù)值MAU4-40MAU4-55MAU4-701VmaxKn13.9113.7813.712VA=0.5144Vmax(1-w)m/s4.584.5

6、44.513(0.7 n ND/60)2(m/s)2780.63766.5743.244V20.7R=V2A+ (序號 3)(m/s)2801.77787.11763.5851 2Z =(P0- pv)/ p V0.7R20.320.3250.3366n c0.130.1350.1427T=FD n o 75/VAkgf29882.828212.227426.581 2Ap=T/ p V0.7R n c22 m5.485.084.849Ae=Ap/(1.067-0.229P/D)2 m5.875.505.241012Ae/Ao=Ae/ 1 n D240.690.650.64按上述結(jié)果作圖如下，

7、可求得不發(fā)生空泡的最小盤面比以及對應(yīng)的最佳螺旋槳要素“:“泡:汀:.a：；：” .HD*pmiO.con：n o=0.48 Vmax= 13.73knAe / Ao = 0.64P/D= 0.63 D=3.24m6. 強(qiáng)度校核按2001年規(guī)范 校核t0.25R及t0.6r,應(yīng)不小于按下式計算之值：丫A1 Ne2 3 10t= , 丫 - -, X=A2GAdN2D3/10 Zb K - XZbN計算功率 Ne=3944X 0.97=3826hp3Ad = Ae / Ao=0.64, P/D= 0.63 ,； - 8 ， G=7.6g/cm ,N=n e=231r/minb0.66R =0.22

8、6D Ad/(0.1Z)=0.226 X 3.24 X 0.64 - 0.4=1.1716mb0.25R=0.7212b0.66R = 0.845mb0.6R =0.9911b 0.66R = 1.1612m項目單位數(shù)值0.25R0.6R弦長bm0.8451.16126342072501511410635K4434A = D/P(K1-K2D/Po.7)+ K3D/Po.7-K39221494Y=A2/(Zbn e)19218.695327.42.二.三:三:.:.三嚴(yán):注:二K58223K63412K74165K8380330A=D/P(K5+K6 & )+K7 & +Kb1358.7910

9、38.89材料系數(shù)K （鋁鎳合金）1.1791.179X=AGANto71010Zb0.3550.197t=*Y/(K X)mm152.7273.66MAI標(biāo)準(zhǔn)槳葉厚度t mm123.970.6校核結(jié)果不滿足要求實取槳葉厚度mm15374實取槳葉厚度按t i.oR=O.OO35D=11.34mm與t o.25R=l53mn連直線決定:o.3R =143.6mmo.5R =1o5.8mmo.7R = 67mmo.9R = 3o.2mmt o.2R =162.4mmtt o.4R = 134.7mmtt o.6R = 86.9mmtt o.8R = 49.1mmt7. 螺距修正根據(jù)尾軸直徑大小，決

10、定轂徑比 dh/D=o.18，此值與MAUK標(biāo)準(zhǔn)轂徑比相同，故對此項 螺距無需修正。由于實際槳葉厚度大于MAUK標(biāo)準(zhǔn)厚度，故需因厚度差異進(jìn)行螺距修正。設(shè)計槳(+ o.7R=0.067/(0.9964X 1.1716)=0.05739標(biāo)準(zhǔn)槳(fl o.7R = 0.0171 X 3.24/(0.9964X 0.3616X 3.24)=0.04746(取MAU4 55為基準(zhǔn)槳)Va (1-)W30 866/、1-s = -V-=0.64 X 13.73 X 30.866/ (231 X 2.0412 ) =0.5744NPNPttt0 55 (一)0.7R =(一)0.7R 設(shè)一(一)0.7R標(biāo)

11、X X 0.75=0.012453bbb0.64Ppt(匚)t= 2()o(1 s) (-)o.7R =-2 X 0.63 X 0.5744 X 0.012453 =-0.009013DDb修正后的螺距比：Ppp=(+ ( )t =0.63+0.009013=0.64 DDD“:“泡:汀:.a：；：” .HD*pmiO.con：8. 重量及慣性矩計算槳葉重Gb =.169 Zbmax(.5t0.2 t0.6)(-D)D= 0.169760041.1716(0.50.16240.0869)(1 0.18)3.24= 2688.23kgfGh =(0.88 -0.66乜兒 d2 =(0.88 -0

12、.660.5932 76000.5832 =869.22kgfd0.593d0 =0.0450.108(PD / N)1/3 KLk=0.0450.108(3443.1/231)1/3 - 0.1 0.5932 =0.281m2G =Gb - Gh = kgf *cm *slmp =0.0948 吃bmax (0.5t.2 + t.6)D 3 kgf cm s29. 敞水特性曲線由于校核后所得盤面比 AE / AO = 0.64，所以無需由MAU4-55,MAU4-70,P/D=0.63的敞 水特性曲線內(nèi)插得到MAU4-64,P/D= 0.63的敞水特性曲線，可以直接從課本附錄中 MAU4-55KTKQ-J圖查得數(shù)據(jù)，其數(shù)據(jù)如下：設(shè)計槳的敞水特性數(shù)據(jù)表J00.20.40.610KQ0.280.23280.16680.1181KT0.27590.21570.13780.0502設(shè)計槳的敞水性征曲線嚴(yán):注:二10.系柱特性計算由上圖得J=0時計算功率K=0.2759 , KQ=0.028.d=3944X 0.97=3825.68hp系柱推力減額分?jǐn)?shù)取t 0=0.04主機(jī)轉(zhuǎn)矩PD 60 75 3825.68 60 752tiN2 冗 231=11861.22kgf系數(shù)推力K