螺旋槳設(shè)計計算說明書1

1、某沿海單槳散貨船螺旋槳設(shè)計計算說明書姓名：XXX班級：XXX學號：XXX聯(lián)系方式：XXX日期：XXX1.已知船體的主要參數(shù)船長 L = 118.00 米型寬 B = 9.70 米設(shè)計吃水 T = 7.20 米排水量 = 5558.2 噸方型系數(shù) CB = 0.658槳軸中心距基線高度 Zp = 3.00 米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） 13141516有效馬力PE（hp）2160 2420 3005 40452.主機參數(shù)型號 6ESDZ58/100 柴油機額定功率 Ps = 5400 hp額定轉(zhuǎn)速 N = 165 rpm轉(zhuǎn)向 右旋傳遞效率 s=0.983.相關(guān)推進因

2、子伴流分數(shù) w = 0.279推力減額分數(shù) t = 0.223相對旋轉(zhuǎn)效率 R = 1.0船身效率 4.可以達到最大航速的計算采用MAU四葉槳圖譜進行計算。取功率儲備10%，軸系效率s = 0.98螺旋槳敞水收到馬力：PD = 54000.9sR =54000.90.981.0 =4762.8（hp）根據(jù)MAU4-40、MAU4-55、MAU4-70的-圖譜列表計算：項 目單位數(shù) 值假定航速Vkn13141516VA=(1-w)V kn9.37310.09410.81511.536Bp=NPD0.5/VA2.542.33735.17729.60425.1936.5075.9315.4415.0

3、19MAU4-4075.7370.1765.0860.53P/D0.6400.6670.6940.720O0.5580.5820.6050.627PTE =PDHOhp2864298731053218MAU4-5574.368.663.459.1P/D0.6860.7130.7410.772O0.5420.5670.5910.612PTE =PDHOhp2782291030333141MAU4-7073.767.863.258.5P/D0.6930.7230.7530.790O0.5220.5450.5650.584PTE=PDHOhp2679279729002997據(jù)上表的計算結(jié)果可繪制PT

4、E、P/D及O對V的曲線，如下圖所示。從PTEf(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O如下表所列。MAUVmax P/DDO4-4015.0960.69764.424.2490.6074-5515.0390.74563.524.1740.5914-7014.8470.75263.694.1320.5615.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 hf =TZp=7.23.00=4.2mp 0p v = pa + hspv = 10300+10254.2-174 = 14461kgf/m2計

5、算溫度t = 15C ,Pv = 174kgf/ m2 , PD = 4762.8hp, = 104.63kgfs2/m4序號項目單位數(shù)值MAU4-40MAU4-55MAU4-701VAKn15.09615.03914.8472VA=0.5144Vmax(1-w)m/s5.5995.5785.5063(0.7ND/60)2(m/s)2660.29637.19624.434V20.7R=V2A+（3）(m/s)2691.6668.2654.75=(p 0- p v) / V0.7R20.4000.4140.4226c0.1610.1660.1707T=PDO75/VAkgf38726378473

6、63968AP=T /V0.7R2cm26.6486.5226.2519AE=AP / (1.067-0.229P/D)m27.3277.2766.98610AE/AO=AE /D20.5170.5310.521按上述結(jié)果作圖,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AE / AO = 0.530 P/D= 0.741 D= 4.182m o= 0.594 Vmax= 15.053kn 6.強度校核按1983年校核t0.25R及t0.6r,應(yīng)不小于按下式計算之值: t=, , X=A2GAdN2D3/1010Zb計算功率Ne=54000.98=5292hpAD =AE / AO =

7、 0.530, P/D= 0.741 , ，G=7.6gf/cm3 ,N=165rpmb0.66R =0.226DAE / AO/0.1Z=1.2523mb0.25R=0.7212b0.66R = 0.9032mb0.6R =0.9911b0.66R = 1.2412m項 目單 位數(shù) 值0.25R0.6R弦長bm0.90321.2412K1634207K2250151K31410635K4434A1=D/P(K1-K2D/P0.7)+K3D/P0.7-K42299827Y=A1Ne/ZbN20409.45342.4K58223K63412K74165K8380330A2=D/P(K5+K6)+

8、K7+K811861011材料系數(shù)K（鋁鎳合金）1.1791.179X=A2GAdN2D3/1010Zb0.26330.1633mm149.2972.52MAU標準槳葉厚度tmm16091.17校核結(jié)果滿足要求滿足要求實取槳葉厚度mm16192.7實取槳葉厚度按t1.0R=0.0035D= 14.64mm 與t0.25R= 161mm 連直線決定:t0.2R = 170.8mm t0.3R = 151.2mm t0.4R = 131.7mm t0.5R = 112.2mmt0.6R = 92.7mm t0.7R = 73.2mm t0.8R = 53.7mm t0.9R = 34.2mm7.螺

9、距修正根據(jù)尾軸直徑大小，決定轂徑比dh/D=0.18，此值與MAU槳標準轂徑比相同，故對此項螺距無需修正。由于實際槳葉厚度大于MAU槳標準厚度，故需因厚度差異進行螺距修正。設(shè)計槳 0.7R =0.0732/(0.9964*1.2523)=0.05866標準槳 0.7R = 0.0171*D/(0.9964*0.31075*D)=0.055221s = =0.6550.7R =0.7R設(shè)0.7R標0.75=-0.000668t=20(1s) 0.7R =-2*0.741*0.655*（-0.000668）=0.000648修正后的螺距比：=0t =0.741+0.000648=0.74168.重

10、量及慣性矩計算根據(jù)MAU槳切面的面積數(shù)據(jù)用積分方法計算得：槳葉重量 3641kgf槳轂重量 螺旋槳重量 槳葉慣性矩 440kgfms2槳轂慣性矩 螺旋槳總慣性矩 （1）（2）（3）（4）（5）（6）（7）（8）（9）（10）r/R面積系數(shù)Ka弦長最大厚度 bt切面面積(m2)S=Kabt辛式系數(shù)SM(4)(5)rr2(6)(7)(6)(8)0.20.6740.833*0.1710.096010.0960.2R0.04R20.0192R0.00384 R2 0.30.6740.973*0.1510.099040.3960.3R0.09R20.1188R0.03564 R20.40.6741.09

11、1*0.1320.097120.1940.4R0.16 R20.0776R0.03104 R20.50.67451.181*0.1120.089240.3570.5R0.25 R20.1785R0.08925 R20.60.67451.241*0.0930.078820.1560.6R0.36 R20.0936R0.05616 R20.70.6771.248*0.0730.061740.2470.7R0.49 R20.1729R0.12103 R20.80.6831.164*0.0540.042920.0860.8R0.64 R20.0688R0.05504 R20.90.6950.922*0

12、.0340.021840.0870.9R0.81 R20.0783R0.07047 R210.70010RR200(6)=1.619(9)=0.8077R(10)=0.46247 R29.敞水特性曲線由MAU4-40,MAU4-55,P/D= 0.741 的敞水特性曲線內(nèi)插得到MAU4-53 ,P/D=0.741 的敞水特性曲線，其數(shù)據(jù)如下：Z設(shè)計槳的敞水特性數(shù)據(jù)表J00.10.20.30.40.50.60.710KQ0.3650.3490.3260.2980.2620.2210.1730.112KT0.32170.3010.2720.2470.2090.1600.1100.049o00.15

13、30.2720.4000.5020.5950.6610.67210.螺旋槳計算總結(jié)螺旋槳直徑 D=4.182螺距比 P/D=0.7416 型式 MAU 葉數(shù) Z=4 盤面比 AE / AO = 0.530 縱傾角 螺旋槳效率 o= 0.594設(shè)計航速 15.053kn轂徑比 dh/D=0.18旋向 右旋材料 鋁鎳青銅重量 慣性矩 11.附錄螺旋槳制圖數(shù)據(jù)。高度母線距隨邊母線距導邊葉寬實際尺寸高度母線距隨邊母線距導邊葉寬畫圖尺寸t0.2r418.2350.1431483.1373833.2804t0.2r41.835.0 48.3 83.3 t0.3r627.3418.8943554.14279

14、73.037t0.3r62.741.9 55.4 97.3 t0.4r836.4485.3914605.11131090.503t0.4r83.648.5 60.5 109.1 t0.5r1045.5545.2514636.16831181.42t0.5r104.654.5 63.6 118.1 t0.6r1254.6600.603640.55141241.154t0.6r125.560.1 64.1 124.1 t0.66r1380.06622.894629.40591252.3t0.66r138.062.3 62.9 125.2 t0.7r1463.7642.8055604.9861124

15、7.792t0.7r146.464.3 60.5 124.8 t0.8r1672.8656.0799507.55711163.637t0.8r167.365.6 50.8 116.4 t0.9r1881.9607.2402314.703921.9432t0.9r188.260.7 31.5 92.2 t0.95r1986.45526.8426169.6866696.5292t0.95r198.652.7 17.0 69.7 t1.0r2091216.522700t1.0r209.121.7 0.0 0.0 葉切面實際尺寸0.2r0.4r0.6r0.7r0.9rxy0yuxy0yuxy0yuxy

16、0yuxy0yu059.78 046.10 031.52 021.96 02.84 16.67 88.10 41.42 21.81 67.93 31.94 27.06 45.98 21.88 31.32 31.40 15.01 28.21 7.22 1.37 33.33 102.05 32.54 43.62 78.69 25.09 54.11 53.77 16.78 62.76 38.21 11.31 56.33 10.77 0.92 50.00 112.98 25.62 65.43 87.12 19.76 81.17 60.02 13.21 94.08 43.85 8.75 84.54 13

17、.99 0.70 83.33 129.89 17.08 109.05 100.16 13.17 135.41 69.71 8.76 156.72 52.45 5.64 140.87 19.65 0.41 124.99 145.61 9.22 163.58 112.27 7.11 203.05 78.61 4.64 235.08 60.28 3.00 211.31 25.55 0.24 166.66 157.48 4.01 218.10 121.43 3.09 270.70 85.10 2.09 313.45 66.32 1.28 281.75 29.91 0.10 249.98 170.46

18、0 327.15 131.44 0406.11 92.51 0470.29 73.05 0422.71 34.10 0266.65 170.80 0 348.96 131.70 0433.16 92.70 0526.57 73.20 0450.83 34.20 0333.31 166.96 0 436.20 128.74 0528.24 90.61 0589.33 71.55 0506.24 33.74 0416.64 153.63 0 545.25 118.46 0647.01 83.38 0699.14 65.84 0575.48 31.72 0499.97 133.48 0 654.30

19、 102.92 0766.54 72.45 0808.82 57.21 0644.81 28.39 0583.30 107.86 0 763.35 83.17 0897.11 58.54 0918.62 46.23 0714.14 23.72 0666.62 77.29 0 872.40 59.59 01003.47 41.95 01028.31 33.12 0783.38 17.64 0749.95 43.21 0 981.45 33.32 01122.38 23.45 01138.11 18.52 0852.71 10.53 0791.62 25.62 0 1035.98 19.76 01

20、181.70 13.91 01192.89 10.98 0887.28 6.63 0833.28 7.69 0 1090.50 5.93 01241.15 4.17 01247.79 5.010921.94 2.340葉切面畫圖尺寸0.2r0.4r0.6r0.7r0.9rxy0yuxy0yuxy0yuxy0yuxy0yu06.0 04.6 03.2 02.2 00.3 1.7 8.8 4.1 2.2 6.8 3.2 2.7 4.6 2.2 3.1 3.1 1.5 2.8 0.72 0.1 3.3 10.2 3.3 4.4 7.9 2.5 5.4 5.4 1.7 6.3 3.8 1.1 5.6 1.08 0.1 5.0 11.3 2.6 6.5 8.7 2.0 8.1 6.0 1.3 9.4 4.4 0.9 8.5 1.40 0.1 8.3 13.0 1.7 10.9 10.0 1.3 13.5 7.0 0.9 15.7 5.2 0.6 14.1 1.96 0.0 12.5 14.6 0.9 16.4 11.2 0.7 20.3 7.9 0.5 23.5 6.0 0.3 21.1 2.55 0.0 16.7 15.7 0.4 21.8 12.1 0.3 27.1 8.5 0.2 31.3 6.6 0.1