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1、 船舶结构强度大作业姓名：胡超班级：船海1104班学号：U201112294一. 数据准备1. 主要数据及原始资料垂线间长：200m海水密度：1.025t/m重力加速度：9.8N/kg2. 原始资料(1) 全船重量汇总表(2) 邦戎曲线数据3. 静水平衡状态下的有关参数总重量：G=12248水线面面积：A=4800平均吃水：=3.9纵稳性半径：=220漂心纵向坐标：=-4.34. 参数计算（1） 由全船重量汇总表：站号重量（t）重心坐标（x/m）0-1791.9 -951-2810.6 -852-3855.8 -753-4900.0 -654-5399.6 -555-6488.1 -456-7
2、525.6 -357-8410.1 -258-9558.9 -159-10750.1 -510-11710.5 511-12670.8 1512-13540.9 2513-14650.0 3514-15558.6 4515-16610.2 5516-17496.5 6517-18580.0 7518-19520.4 8519-20419.3 95可计算船舶纵向重心由公式:xi=pixipi可得重心：xi=-6.78（2）由邦戎曲线数据表导入AUTOCAD可以得到如下邦戎曲线图:理论站号力臂乘数第一次近似第二次近似各站浸水面积成对和理论站距上的浮力理论站距各站浸水面积面积矩函数各站浸水面积面积矩
3、函数0-103.2206-32.2064.032-40.3210.776540.321-95.6082-50.47386.7445-60.700528.004167.4450-12-818.2151-145.72121.2596-170.07757.9787212.5961-23-731.253-218.77136.7191-257.03498.7375367.1912-34-653.9652-323.79162.0184-372.11144.7232620.1843-45-574.3703-371.85282.7048-413.524183.629827.0484-56-493.7717-3
4、75.087100.9242-403.697211.04831009.2425-67-3104.9847-314.954110.1241-330.372222.74351101.2416-78-2109.7265-219.453112.6194-225.239223.46281126.1947-89-1110.1856-110.186110.8434-110.843219.43211108.4348-9100110.16440108.58870212.61051085.8879-10111107.8161107.8161104.0218104.0218199.34821040.21810-11
5、122101.1963202.392695.3264190.6528177.9871953.26411-1213390.1777270.533182.6607247.9821148.6203826.60712-1314474.2943297.177265.9596263.8384113.7749659.59613-1415555.8755279.377547.8153239.076580.0053478.15314-1516639.1112234.667232.19193.1452.1215321.915-1617725.1678176.174619.9315139.520531.613319
6、9.31516-1718815.3149122.519211.681893.454418.4791116.81817-181996.698360.28476.797361.17579.912367.97318-1920105.642656.4263.11531.1510.776531.1519-20可得船舶浮心坐标：公式如下xb=xiAsiAsi可得浮心坐标：xb=-2.87二. 船舶在静水中平衡位置的确定1. 第一次近似首吃水：df=dm+(xg-xbR)(L2-xf)=2.04尾吃水：da1=dm-xg-xbR(L2+xf)=5.60浮力：B1=121202.48kN浮心坐标：xb1=-2
7、.982. 第二次近似计算首吃水：df2=df1+w-B1gA+(L2-Xf)xg-xb1R=尾吃水：da2=da1+w-B1gA-(L2-Xf)xg-xb1R=4.63浮力：B1=12260.78浮心坐标：Xb2= -6.6873. 剪力与弯矩的计算理论站距理论站间重量理论站间浮力理论站间载荷剪力值弯矩0-1791.9 541.2497736.7 736.7736.71-2810.6 1406.506667.1 1403.8 2140.5 2-3855.8 2911.98558.6 1225.7 2629.5 3-4900.0 4959.091394.0 952.6 2178.3 4-539
8、9.6 7268.723-342.1 51.9 1004.5 5-6488.1 9222.767-453.0 -795.1 -743.2 6-7525.6 10599.9-556.0 -1009.0 -1804.1 7-8410.1 11187.29-731.4 -1287.4 -2296.4 8-9558.9 11223.42-586.3 -1317.7 -2605.1 9-10750.1 11020.98-374.5 -960.8 -2278.6 10-11710.5 10678.36-379.1 -753.7 -1714.5 11-12670.8 10012.26-350.9 -730.
9、0 -1483.6 12-13540.9 8939.402-371.3 -722.1 -1452.1 13-14650.0 7464.455-111.7 -483.0 -1205.1 14-15558.6 5714.344-24.5 -136.2 -619.1 15-16610.2 4018.266200.2 175.7 39.5 16-17496.5 2617.802229.4 429.5 605.2 17-18580.0 1587.778418.0 647.3 1076.9 18-19520.4 928.1128425.7 843.7 1491.0 19-20419.3 497.8453368.5 794.2 1637.9 得出最后的剪力与弯矩计算结果：Nmax= 13757.24 kN Mmax=25769.6kNm