螺旋桨设计计算说明书1

1、某沿海单桨散货船螺旋桨设计计算说明书姓名：XXX班级：XXX学号：XXX联系方式：XXX日期：XXX1.已知船体的主要参数船长 L = 118.00 米型宽 B = 9.70 米设计吃水 T = 7.20 米排水量 = 5558.2 吨方型系数 CB = 0.658桨轴中心距基线高度 Zp = 3.00 米由模型试验提供的船体有效马力曲线数据如下：航速V（kn） 13141516有效马力PE（hp）2160 2420 3005 40452.主机参数型号 6ESDZ58/100 柴油机额定功率 Ps = 5400 hp额定转速 N = 165 rpm转向 右旋传递效率 s=0.983.相关推进因

2、子伴流分数 w = 0.279推力减额分数 t = 0.223相对旋转效率 R = 1.0船身效率 4.可以达到最大航速的计算采用MAU四叶桨图谱进行计算。取功率储备10%，轴系效率s = 0.98螺旋桨敞水收到马力：PD = 5400×0.9×sR =5400×0.9×0.98×1.0 =4762.8（hp）根据MAU4-40、MAU4-55、MAU4-70的-图谱列表计算：项 目单位数 值假定航速Vkn13141516VA=(1-w)V kn9.37310.09410.81511.536Bp=NPD0.5/VA2.542.33735.177

3、29.60425.1936.5075.9315.4415.019MAU4-4075.7370.1765.0860.53P/D0.6400.6670.6940.720O0.5580.5820.6050.627PTE =PD·H·Ohp2864298731053218MAU4-5574.368.663.459.1P/D0.6860.7130.7410.772O0.5420.5670.5910.612PTE =PD·H·Ohp2782291030333141MAU4-7073.767.863.258.5P/D0.6930.7230.7530.790O0.522

4、0.5450.5650.584PTE=PD·H·Ohp2679279729002997据上表的计算结果可绘制PTE、P/D及O对V的曲线，如下图所示。从PTEf(V)曲线与船体满载有效马力曲线之交点，可获得不同盘面比所对应的设计航速及螺旋桨最佳要素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.空泡校核按柏利尔空泡限界线中商船上限线，计算不发生空泡之最小展开面积比。桨轴沉深 hf =TZp

5、=7.23.00=4.2mp 0p v = pa + hspv = 10300+1025×4.2-174 = 14461kgf/m2计算温度t = 15°C ,Pv = 174kgf/ m2 , PD = 4762.8hp, = 104.63kgfs2/m4序号项目单位数值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)2691.6668.2654.7

6、5=(p 0- p v) / V0.7R20.4000.4140.4226c0.1610.1660.1707T=PD·O·75/VAkgf3872637847363968AP=T /V0.7R2·cm26.6486.5226.2519AE=AP / (1.067-0.229P/D)m27.3277.2766.98610AE/AO=AE /D20.5170.5310.521按上述结果作图,可求得不发生空泡的最小盘面比以及对应的最佳螺旋桨要素AE / AO = 0.530 P/D= 0.741 D= 4.182m o= 0.594 Vmax= 15.053kn 6.强

7、度校核按1983年<<规范>>校核t0.25R及t0.6r,应不小于按下式计算之值: t=, , X=A2GAdN2D3/1010Zb计算功率Ne=5400×0.98=5292hpAD =AE / AO = 0.530, P/D= 0.741 , ，G=7.6gf/cm3 ,N=165rpmb0.66R =0.226D·AE / AO/0.1Z=1.2523mb0.25R=0.7212b0.66R = 0.9032mb0.6R =0.9911b0.66R = 1.2412m项 目单 位数 值0.25R0.6R弦长bm0.90321.2412K1634

8、207K2250151K31410635K4434A1=D/P(K1-K2D/P0.7)+K3D/P0.7-K42299827Y=A1Ne/ZbN20409.45342.4K58223K63412K74165K8380330A2=D/P(K5+K6)+K7+K811861011材料系数K（铝镍合金）1.1791.179X=A2GAdN2D3/1010Zb0.26330.1633mm149.2972.52MAU标准桨叶厚度tmm16091.17校核结果满足要求满足要求实取桨叶厚度mm16192.7实取桨叶厚度按t1.0R=0.0035D= 14.64mm 与t0.25R= 161mm 连直线决定

9、: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.螺距修正根据尾轴直径大小，决定毂径比dh/D=0.18，此值与MAU桨标准毂径比相同，故对此项螺距无需修正。由于实际桨叶厚度大于MAU桨标准厚度，故需因厚度差异进行螺距修正。设计桨 0.7R =0.0732/(0.9964*1.2523)=0.05866标准桨 0.7R = 0.0171*D/(0.9964*0.31075*D)=0.055221s

10、 = =0.6550.7R =0.7R设0.7R标××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.重量及惯性矩计算根据MAU桨切面的面积数据用积分方法计算得：桨叶重量 3641kgf桨毂重量 螺旋桨重量 桨叶惯性矩 440kgfms2桨毂惯性矩 螺旋桨总惯性矩 （1）（2）（3）（4）（5）（6）（7）（8）（9）（10）r/R面积系数Ka弦长最大厚度 bt切面面积(m2)S=Kabt辛式系数SM(4)(5)rr2(6)

11、(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 R20.40.6741.091*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 R20.0936R0.056

12、16 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*0.0340.021840.0870.9R0.81 R20.0783R0.07047 R210.70010RR200(6)=1.619(9)=0.8077R(10)=0.46247 R29.敞水特性曲线由MAU4-40,MAU4-55,P/D= 0.741 的敞水特性曲线内插得到MAU4-53 ,P/D=0.741 的敞水特

13、性曲线，其数据如下：Z设计桨的敞水特性数据表J00.10.20.30.40.50.60.710KQ0.3650.3490.3260.2980.2620.2210.1730.112KT0.32170.3010.2720.2470.2090.1600.1100.049o00.1530.2720.4000.5020.5950.6610.67210.螺旋桨计算总结螺旋桨直径 D=4.182螺距比 P/D=0.7416 型式 MAU 叶数 Z=4 盘面比 AE / AO = 0.530 纵倾角 螺旋桨效率 o= 0.594设计航速 15.053kn毂径比 dh/D=0.18旋向 右旋材料 铝镍青铜重量

14、惯性矩 11.附录螺旋桨制图数据。高度母线距随边母线距导边叶宽实际尺寸高度母线距随边母线距导边叶宽画图尺寸t0.2r418.2350.1431483.1373833.2804t0.2r41.835.0 48.3 83.3 t0.3r627.3418.8943554.1427973.037t0.3r62.741.9 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 t0.6r1254.660

15、0.603640.55141241.154t0.6r125.560.1 64.1 124.1 t0.66r1380.06622.894629.40591252.3t0.66r138.062.3 62.9 125.2 t0.7r1463.7642.8055604.98611247.792t0.7r146.464.3 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.

16、45526.8426169.6866696.5292t0.95r198.652.7 17.0 69.7 t1.0r2091216.522700t1.0r209.121.7 0.0 0.0 叶切面实际尺寸0.2r0.4r0.6r0.7r0.9rxy0yuxy0yuxy0yuxy0yuxy0yu059.78 046.10 031.52 021.96 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 2

17、5.09 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 13.99 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.

18、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 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

19、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 0 654.30 102.92 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

20、.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 01181.70 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叶切面画图尺寸0.2r0.4r0.6r0.7r0.9rxy0yuxy0yuxy0yuxy0yuxy0yu0

21、6.0 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