刘俊峰-课程设计

1、船舶设计原理课程设计姓 名：刘俊峰 班 级：运船1102 学 号：201171039 指导老师：林焰 时 间：2014年12月14日 1确定设计船主要尺度按照设计要求选取变化量，列入表1。表1：设计船主要尺度母型船设计船变化率垂线间长LPP/m27.5027.500型宽B/m5.2005.20设计吃水d/m1.3501.350中横剖面系数Cm0.7530.7530棱形系数Cp0.5980.5685%浮心纵向坐标Xb/m-0.5761-0.54735%排水量/t89.685.125%2母型船横剖面面积曲线（SAC）由邦戎曲线读出母型船设计吃水（1.35米）处的各站面积值，如表2。表2：母型船设计

2、水线处各站横剖面积站号00.511.5234面积A/m0.03340.34530.61521.02851.56832.37542.588256788.599.5102.64282.41511.84451.14220.8140.48240.200303母型船SAC无因次化将母型船各站面积除以最大横剖面面积Ai0Am0，并将各站距船中的距离除以二分之一水线间长li1/2Lpp，得到如表3所示无因次结果： 表3：母型船SAC无因次化结果li1/2Lpp-1-0.9-0.8-0.7-0.6-0.4-0.2Ai0Am00.01260.13070.23280.38920.59340.89880.97930

3、0.20.40.60.70.80.911.00000.91380.69790.43220.30800.18250.07580.0000绘制母型船SAC曲线，如图1：4用“Lackenby”法绘制设计船SAC 规定0-5站为后体，5-10站为前体。1） 由母型船的无因次化SAC在CAD中做面域可查得表4，其中下标f表示前体，a表示后体。表4：母型船无因次化前后体棱形系数及浮心纵向坐标Cpf0Cpa0Xbf0Xba00.54720.6480.3272-0.35372） 将母型船横剖面面积曲线改造为设计船横剖面面积曲线 按经验公式估算设计船前、后体棱形系数Cpf和Cpa：Cpf=Cp+1.4+CpL

4、CBLpp=0.5289Cpa=Cp-(1.4+CLCBLpp=0.6073故前、后体棱形系数变化量:dCpf=Cpf-Cpf0 =-0.0183dCpa=Cpa-Cpa0 =-0.0407 求辅助站位置按照“Lackenby”法，有dxfi=(1-xi)xidCpf/Cpf/(1-2Xbf)dxai=(1-xi)xidCaf/Caf/(1-2Xba)得到各辅助站距离x如表5： 表5：各辅助站距离站号00.511.5234x-1-0.9-0.8-0.7-0.6-0.4-0.2x-1.0000-0.8794-0.7633-0.6519-0.5450-0.3450-0.163356788.599.

5、51000.20.40.60.70.80.910.00000.18400.37600.57600.67900.78400.89101.0000以新得到的x为横坐标，纵坐标保持不变，可得到设计船的横剖面面积曲线SAC无因次化，如图2： 校核设计船横剖面面积曲线的Cp和Xb在CAD作图，创建面域，查询得到面积及质心横坐标。二者与实际的误差分别为0.14%与21.1%。浮心纵向坐标实际值与设定值相差在很大，需要用迁移法修正，满足要求。用迁移法进行浮心纵向坐标的调整横坐标/Lwl-0.5000 -0.4397 -0.3817 -0.3259 -0.2725 -0.1725 -0.0817 Ai/Am0

6、.0126 0.1307 0.2328 0.3892 0.5934 0.8988 0.9793 横坐标移动值0.0001 0.0015 0.0027 0.0045 0.0069 0.0104 0.0114 Ai对应横坐标-0.5001 -0.4412 -0.3844 -0.3304 -0.2794 -0.1829 -0.0930 0.0000 0.0920 0.1880 0.2880 0.3395 0.3920 0.4455 0.5000 1.0000 0.9138 0.6979 0.4322 0.3080 0.1825 0.0758 0.0000 0.0116 0.0106 0.0081 0

7、.0050 0.0036 0.0021 0.0009 0.0000 -0.0116 0.0814 0.1799 0.2830 0.3359 0.3899 0.4446 0.5000 此时，浮心纵向坐标的误差调整为0.08%。5母型船型值表无因次化1） 将相应值分别除以Lw，B0，得到母型船型值表的无因次值。表6：母型船无因次化型值表各站距舯-0.5000-0.4500-0.4000-0.3500-0.3000-0.2000站号0.50001.00001.50002.00003.0000基线0.00000.1269水线0.25000.3883水线0.50000.25000.6288水线0.750

8、00.19230.57690.7923水线1.00000.18120.65770.79310.8846水线1.15000.29220.71520.79820.85540.9201水线1.25000.69650.80760.84410.88710.9385水线1.35000.7012 0.7988 0.8410 0.8724 0.9104 0.9538 水线1.40000.7844 0.8221 0.8549 0.8842 0.9196 0.9608 水线1.50000.82500.85000.87850.90540.93630.9731水线1.75000.88130.90340.92350.9

9、4670.96790.9923水线2.00000.92740.94270.95710.97310.98751.0000水线2.25000.96770.97430.98400.99081.00001.0000水线2.50001.00001.00001.00001.00001.00001.0000-0.10000.00000.10000.20000.30000.35000.40000.45000.50004.00005.00006.00007.00008.00008.50009.00009.500010.00000.10770.03080.49620.51920.41920.25000.10770

10、.06510.03260.72690.76920.71150.50960.27500.18460.09650.03080.85000.88080.82500.63850.39620.27650.15790.05890.92880.94670.90030.73400.48460.35380.21550.09230.95740.97100.93050.77690.53220.39570.24950.11440.97120.98140.94550.80150.56150.42250.27310.13080.9827 0.9885 0.9577 0.8235 0.5885 0.4490 0.2973

11、0.1491 0.0081 0.9874 0.9914 0.9630 0.8339 0.6015 0.4623 0.3089 0.1592 0.0139 0.99420.99620.97120.85200.62690.48880.33370.18080.02691.00001.00000.98780.89230.68790.55790.40000.24200.07221.00001.00001.00000.92390.74750.62800.47310.31100.12521.00001.00001.00000.95120.80560.69580.55000.38270.18631.00001

12、.00001.00000.97310.86310.76540.63220.46150.25382） 绘制母型船无因次化半宽水线图图3：母型船无因次化半宽水线图3） 通过之前计算的各站处dx，在母型船的无因次型值表上插出设计船的无因次化半宽水线图。图4：设计船无因次化半宽水线图6设计船型值表1） 从设计船无因次化的半宽水线图中插值得出各水线的设计船无因次化型值表，并进行有因次化。表7：设计船无因次化型值表各站距舯-0.5000-0.4500-0.4000-0.3500-0.3000-0.2000站号0.50001.00001.50002.00003.0000基线0.00000.3289水线0.2

13、5000.8975水线0.50000.46701.5577水线0.75000.37291.19942.0116水线1.00000.32141.44951.96012.2690水线1.15000.60251.77032.00512.16922.3676水线1.25001.72172.05502.16112.25992.4203水线1.35001.82392.05112.16162.23632.32702.4630水线1.40002.03972.12292.20042.26882.35352.4820水线1.50002.14532.19932.26362.32702.40192.5160水线1.7

14、5002.29162.34052.38602.43832.49522.5722水线2.00002.41122.44532.47752.51422.55322.5940水线2.25002.51602.53012.55192.56882.58702.6000水线2.50002.60002.60002.60002.60002.60002.6000-0.10000.00000.10000.20000.30000.35000.40000.45000.50004.00005.00006.00007.00008.00008.50009.00009.500010.00000.28910.08001.27611

15、.34241.00830.56580.24050.14590.06971.87281.99811.79091.18660.63930.41760.21630.06762.19882.28722.08861.53270.93260.63620.36040.13342.40712.45802.29271.78521.15470.82650.49870.21162.48252.52122.37641.90351.27480.93080.58210.26652.51912.54852.41851.97261.34940.99890.64060.30892.55032.56672.45442.03501

16、.41911.06730.70070.35180.02112.56312.57452.47002.06491.45341.10110.73030.37700.03612.58212.58732.49392.11851.52071.16970.79380.43160.06992.59922.59952.54542.23811.68641.35040.96410.58840.18762.60002.60002.56152.32991.85091.53761.15340.76540.32562.60002.60002.58442.42482.00981.72121.35360.94930.48432

17、.60002.60002.59512.49732.17181.91021.56961.15150.66002） 作横剖线图，如图5。图5：设计船横剖线图3） 从中插值得出设计船的型值表。以毫米为单位并进行取整。表9：设计船型值表吃水尾端点距舯尾端点半宽半宽半宽半宽半宽半宽半宽半宽站号00.511.5234船底-67253677808080808080基线0-742150329289水线250-8017508981276水线500-87725046715581873水线750-992850373119920122199水线1000-11177503211450196022692407水线1150

18、-128665060317702005216923682482水线1250-1372769172220552161226024202519水线1350-1375018411824205121622236232724632550水线1400-1376120392040212322002269235424822563水线1500-1378421452145219922642327240225162582水线1750-1384022922292234123862438249525722599水线2000-1389724112411244524782514255325942600水线2250-1395

19、325162516253025522569258726002600水线2500-1400926002600260026002600260026002600主甲板-1398225522552258525852595260026002600上甲板-1411626002600260026002600260026002600主甲板高23602360230022602215219021302100上甲板高29502950290028602815279027302690各站距舯-13750-12375-11000-9625-8250-5500-2750半宽半宽半宽半宽半宽半宽半宽半宽首端点半宽首端点距舯5

20、6788.599.510808080706050301030121258030013421008566241146703012250199817911187639418216683012890228720891533933636360133301322524582293178511558274992123013470252123761903127593158226750135902549241919731349999641309501368025672454203514191067701352215013750257524702065145311017303773624137862587249

21、421181521117079443270411385025992545223816861350964588188771399426002562233018511538115376532610914158260025842425201017211354949484162143062600259524972172191015701152660233144722600260024652143191616201278816324147192600260026002499239021901920149265715345210021352210233024002480258026902795270027352830292530103130327034103600027505500825096251100012