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1、船舶設(shè)計(jì)原理課程設(shè)計(jì)姓 名:劉俊峰 班 級(jí):運(yùn)船1102 學(xué) 號(hào):201171039 指導(dǎo)老師:林焰 時(shí) 間:2014年12月14日 1確定設(shè)計(jì)船主要尺度按照設(shè)計(jì)要求選取變化量,列入表1。表1:設(shè)計(jì)船主要尺度母型船設(shè)計(jì)船變化率垂線間長(zhǎng)LPP/m27.5027.500型寬B/m5.2005.20設(shè)計(jì)吃水d/m1.3501.350中橫剖面系數(shù)Cm0.7530.7530棱形系數(shù)Cp0.5980.5685%浮心縱向坐標(biāo)Xb/m-0.5761-0.54735%排水量/t89.685.125%2母型船橫剖面面積曲線(SAC)由邦戎曲線讀出母型船設(shè)計(jì)吃水(1.35米)處的各站面積值,如表2。表2:母型船設(shè)計(jì)
2、水線處各站橫剖面積站號(hào)00.511.5234面積A/m0.03340.34530.61521.02851.56832.37542.588256788.599.5102.64282.41511.84451.14220.8140.48240.200303母型船SAC無因次化將母型船各站面積除以最大橫剖面面積Ai0Am0,并將各站距船中的距離除以二分之一水線間長(zhǎng)li1/2Lpp,得到如表3所示無因次結(jié)果: 表3:母型船SAC無因次化結(jié)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繪制母型船SAC曲線,如圖1:4用“Lackenby”法繪制設(shè)計(jì)船SAC 規(guī)定0-5站為后體,5-10站為前體。1) 由母型船的無因次化SAC在CAD中做面域可查得表4,其中下標(biāo)f表示前體,a表示后體。表4:母型船無因次化前后體棱形系數(shù)及浮心縱向坐標(biāo)Cpf0Cpa0Xbf0Xba00.54720.6480.3272-0.35372) 將母型船橫剖面面積曲線改造為設(shè)計(jì)船橫剖面面積曲線 按經(jīng)驗(yàn)公式估算設(shè)計(jì)船前、后體棱形系數(shù)Cpf和Cpa:Cpf=Cp+1.4+CpL
4、CBLpp=0.5289Cpa=Cp-(1.4+CLCBLpp=0.6073故前、后體棱形系數(shù)變化量:dCpf=Cpf-Cpf0 =-0.0183dCpa=Cpa-Cpa0 =-0.0407 求輔助站位置按照“Lackenby”法,有dxfi=(1-xi)xidCpf/Cpf/(1-2Xbf)dxai=(1-xi)xidCaf/Caf/(1-2Xba)得到各輔助站距離x如表5: 表5:各輔助站距離站號(hào)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為橫坐標(biāo),縱坐標(biāo)保持不變,可得到設(shè)計(jì)船的橫剖面面積曲線SAC無因次化,如圖2: 校核設(shè)計(jì)船橫剖面面積曲線的Cp和Xb在CAD作圖,創(chuàng)建面域,查詢得到面積及質(zhì)心橫坐標(biāo)。二者與實(shí)際的誤差分別為0.14%與21.1%。浮心縱向坐標(biāo)實(shí)際值與設(shè)定值相差在很大,需要用遷移法修正,滿足要求。用遷移法進(jìn)行浮心縱向坐標(biāo)的調(diào)整橫坐標(biāo)/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 橫坐標(biāo)移動(dòng)值0.0001 0.0015 0.0027 0.0045 0.0069 0.0104 0.0114 Ai對(duì)應(yīng)橫坐標(biāo)-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 此時(shí),浮心縱向坐標(biāo)的誤差調(diào)整為0.08%。5母型船型值表無因次化1) 將相應(yīng)值分別除以Lw,B0,得到母型船型值表的無因次值。表6:母型船無因次化型值表各站距舯-0.5000-0.4500-0.4000-0.3500-0.3000-0.2000站號(hào)0.50001.00001.50002.00003.0000基線0.00000.1269水線0.25000.3883水線0.50000.25000.6288水線0.750
8、00.19230.57690.7923水線1.00000.18120.65770.79310.8846水線1.15000.29220.71520.79820.85540.9201水線1.25000.69650.80760.84410.88710.9385水線1.35000.7012 0.7988 0.8410 0.8724 0.9104 0.9538 水線1.40000.7844 0.8221 0.8549 0.8842 0.9196 0.9608 水線1.50000.82500.85000.87850.90540.93630.9731水線1.75000.88130.90340.92350.9
9、4670.96790.9923水線2.00000.92740.94270.95710.97310.98751.0000水線2.25000.96770.97430.98400.99081.00001.0000水線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) 繪制母型船無因次化半寬水線圖圖3:母型船無因次化半寬水線圖3) 通過之前計(jì)算的各站處dx,在母型船的無因次型值表上插出設(shè)計(jì)船的無因次化半寬水線圖。圖4:設(shè)計(jì)船無因次化半寬水線圖6設(shè)計(jì)船型值表1) 從設(shè)計(jì)船無因次化的半寬水線圖中插值得出各水線的設(shè)計(jì)船無因次化型值表,并進(jìn)行有因次化。表7:設(shè)計(jì)船無因次化型值表各站距舯-0.5000-0.4500-0.4000-0.3500-0.3000-0.2000站號(hào)0.50001.00001.50002.00003.0000基線0.00000.3289水線0.2
13、5000.8975水線0.50000.46701.5577水線0.75000.37291.19942.0116水線1.00000.32141.44951.96012.2690水線1.15000.60251.77032.00512.16922.3676水線1.25001.72172.05502.16112.25992.4203水線1.35001.82392.05112.16162.23632.32702.4630水線1.40002.03972.12292.20042.26882.35352.4820水線1.50002.14532.19932.26362.32702.40192.5160水線1.7
14、5002.29162.34052.38602.43832.49522.5722水線2.00002.41122.44532.47752.51422.55322.5940水線2.25002.51602.53012.55192.56882.58702.6000水線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) 作橫剖線圖,如圖5。圖5:設(shè)計(jì)船橫剖線圖3) 從中插值得出設(shè)計(jì)船的型值表。以毫米為單位并進(jìn)行取整。表9:設(shè)計(jì)船型值表吃水尾端點(diǎn)距舯尾端點(diǎn)半寬半寬半寬半寬半寬半寬半寬半寬站號(hào)00.511.5234船底-67253677808080808080基線0-742150329289水線250-8017508981276水線500-87725046715581873水線750-992850373119920122199水線1000-11177503211450196022692407水線1150
18、-128665060317702005216923682482水線1250-1372769172220552161226024202519水線1350-1375018411824205121622236232724632550水線1400-1376120392040212322002269235424822563水線1500-1378421452145219922642327240225162582水線1750-1384022922292234123862438249525722599水線2000-1389724112411244524782514255325942600水線2250-1395
19、325162516253025522569258726002600水線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半寬半寬半寬半寬半寬半寬半寬半寬首端點(diǎn)半寬首端點(diǎn)距舯5
20、6788.599.510808080706050301030121258030013421008566241146703012250199817911187639418216683012890228720891533933636360133301322524582293178511558274992123013470252123761903127593158226750135902549241919731349999641309501368025672454203514191067701352215013750257524702065145311017303773624137862587249
21、421181521117079443270411385025992545223816861350964588188771399426002562233018511538115376532610914158260025842425201017211354949484162143062600259524972172191015701152660233144722600260024652143191616201278816324147192600260026002499239021901920149265715345210021352210233024002480258026902795270027352830292530103130327034103600027505500825096251100012
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