《船体强度课程设计(共35页).doc》由会员分享，可在线阅读，更多相关《船体强度课程设计(共35页).doc（35页珍藏版）》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、精选优质文档-倾情为你奉上海桥客货滚装轮 基 本 设 计标记数量修改标号记签字字日期总纵强度计算书船体强度课程设计编制Isobel会签校对班级海船四班标检学号总面积共22页第1页审核天津大学建工学院船舶工程系审定日期2010/8/27目录1 计算说明 11.1 船舶主要技术参数11.2 计算依据规范12 全船重量分配22.1 空船重量分配2 2.1.1 空船重量及重心计算2 2.1.2 梯形法重量分配22.2 可变重量分配及重量分布曲线3 2.2.1 可变重量分配3 2.2.2 重量分布曲线43 绘制浮力曲线5 3.1 船舶满载各站浸水面积5 3.2 绘制浮力曲线64. 静水弯矩与静水剪力计算
2、7 4.1 站间载荷计算7 4.2 静水剪力与弯矩计算85. 波浪附加弯矩与总弯矩计算8 5.1 波浪附加弯矩计算8 5.2 合成弯矩计算及修正96. 总弯曲应力计算与稳定性校核 10 6.1 计算剖面抗弯几何特性 10 6.2 计算总弯曲应力 126.3 稳定性校核 146.3.1纵骨架式板格稳定性校核 14 6.3.2 纵骨稳定性校核147. 强度分析与结论15附录：中横剖面图、各站位横剖面图161 计算说明：1.1 船舶主要技术参数：船 名:海桥客货滚装轮总长：135米垂线间长：125米船宽：20米 满载吃水：6.1米 型深：11.05米梁拱：0.3米方形系数计算工况:满载出港排水量:(
3、吨)全船重心距离0站(米) 1.2 计算依据规范：引用钢质海船入级规范2. 全船重量分配:2.1 空船重量分配: 2.1.1 空船重量及重心计算:序号重量(t)重心距0站(m)重量矩(tm)14301.5645221512258034622210164465132.0520864.55562242.6326515.86633051.9717150.174276126047853072.138213933082.7527307.510258932399411300102.793083712130112.1114574.313110.512113370.54795.5.8表2-1空船重量为W=47
4、95.5t 空船重心距0站为xg=.84795.5=52.604m注： 由此数据求得ab,且c0,因此，在计算中取xg=57,62m。 2.1.2 梯形法重量分配: ,取b=1.195,由梯形法求得a=0.912,c=0.308 因此，空船重量梯形分布如图2-1 图2-1 空船重量梯形分布由梯形分布图得各站重量分布，见表2-2站号y各站间重量（t）理论站距034.988136.617223.766 0-1238.245233.944 1-2339.874244.122 2-3441.502254.300 3-4543.131264.478 4-5644.759274.656 5-61/3 L4
5、5.845745.845284.269 6-7845.845286.531 7-8945.845286.531 8-91045.845286.531 9-101145.845286.531 10-111245.845286.531 11-121345.845286.531 12-132/3 L45.8451442.442279.441 13-141537.338249.313 14-151632.233217.409 15-161727.129185.506 16-171822.025153.606 17-181916.92121.703 18-192011.81689.800 19-2047
6、95.499表2-22.2 可变重量分配及重量分布曲线： 2.2.1 可变重量分配：可变重量分配见表2-3。理论站距卡车燃油船员其他0-114.600 0001-210.000 54.108 002-347.800 80.892 025.365 3-439.875 0.000 4.992 14.250 4-590.850 7.700 4.992 32.785 5-690.250 19.802 4.992 8.805 6-7107.450 22.646 4.992 1.250 7-8124.305 7.752 4.992 1.545 8-9124.500 118.246 4.992 09-101
7、76.480 179.258 4.992 010-1171.200 450.869 4.992 011-12139.890 148.568 4.992 012-1369.507 167.961 4.992 013-14101.750 0.000 4.992 014-1560.743 -25.764 4.992 015-1650.900 538.454 00.884 16-175.000 95.350 02.516 17-184.900 112.360 00.000 18-19000019-2000001330.000 1978.202 59.904 87.400 表2-3 2.2.2 重量分布
8、曲线： 将空船重量与可变重量分布加和得全船满载出港重量分布，见表2-4。理论站距空船卡车燃油船员其他总重量（T）站间均布重量(T)0-1223.76614.600 000238.366 38.139 1-2233.94410.000 54.108 00298.052 47.688 2-3244.12247.800 80.892 025.365 398.179 63.709 3-4254.339.875 0.000 4.992 14.250 313.417 50.147 4-5264.47890.850 7.700 4.992 32.785 400.805 64.129 5-6274.65690
9、.250 19.802 4.992 8.805 398.505 63.761 6-7284.269107.450 22.646 4.992 1.250 420.607 67.297 7-8286.531124.305 7.752 4.992 1.545 425.125 68.020 8-9286.531124.500 118.246 4.992 0534.269 85.483 9-10286.531176.480 179.258 4.992 0647.261 103.562 10-11286.53171.200 450.869 4.992 0813.592 130.175 11-12286.5
10、31139.890 148.568 4.992 0579.981 92.797 12-13286.53169.507 167.961 4.992 0528.991 84.639 13-14279.441101.750 0.000 4.992 0386.183 61.789 14-15249.31360.743 -25.764 4.992 0289.284 46.285 15-16217.40950.900 538.454 00.884 807.647 129.224 16-17185.5065.000 95.350 02.516 288.372 46.140 17-18153.6064.900
11、 112.360 00.000 270.866 43.339 18-19121.7030000121.703 19.472 19-2089.8000089.800 14.368 4795.499 1330.000 1978.202 59.904 87.400 8251.005 表2-4重量分布曲线见图2-2：重量（t）图2-2 重量分布曲线3. 绘制浮力曲线：3.1 船舶满载各站浸水面积： 绘制各站横剖面浸水面积图（见附录），修正后，近似求得各站浸水面积，见表3-1。0站与20站浮力取为0。站号船底修正值0.5WL1WL2WL3WL4WL5WL6WL7WL6.1m处半宽浸水面积（）000000
12、00179543402096.401000005272157477765015002.510.8252000342126226044741676880096924.225.813303207601885333350676874820589928303.545.5674520.5125721233898561271108297910095899161.365.462 51212.4269840176024741984479156961698869651.582.964 61950.6446559547657862292029639987399869888.996.460 73395.960607
13、46187579381972599129992100009999.8106.491 83980.97097835593619784996010000100001000010000111.830 9550074548622955099581000010000100001000010000114.153 105545.77254836593309790998010000100001000010000112.774 114456.96260750087209380974099309990100009992.1107.267 12257349206210770086009170953097509880
14、9766.397.223 131534.636404900649075008250874091159400914784.659 141212.8259037005195622570007590806085308106.770.443 15817.5182026903920483555406165672572906815.655.263 16285138019702865352541004630515057455240.940.907 17185110015002065246028103140352040503565.228.621 1810089012001505165017451880209
15、024452117.318.811 19607501065125511359458509001150915.811.829 2003007308955602408008080表3-13.2 绘制浮力曲线： 由各站浸水面积求得各站浮力（见表3-2），绘制浮力曲线（见图3-1）。站号浸水面积（）各站浮力(t/m)000110.82511.096 225.81326.458 345.56746.706 465.462 67.098 582.964 85.039 696.460 98.872 7106.491 109.153 8111.830 114.626 9114.153 117.007 1011
16、2.774 115.594 11107.267 109.948 1297.223 99.654 1384.659 86.775 1470.443 72.204 1555.263 56.644 1640.907 41.929 1728.621 29.337 1818.811 19.281 1911.829 12.125 2000表3-2图3-1 浮力曲线4. 静水弯矩与静水剪力计算：4.1 各站间载荷分布计算： 由浮力曲线求得各站间浮力，由各站间重量分布和浮力分布求得各站间载荷b(x)，见下表4-1。理论站距总重量（T）站间均布重量(T)各站间浮力(T)站间均布浮力(T)平均载荷(kN)0-12
17、38.366 38.139 34.674 5.548 319.389 1-2298.052 47.688 117.356 18.777 283.331 2-3398.179 63.709 228.639 36.582 265.839 3-4313.417 50.147 355.639 56.902 -66.204 4-5400.805 64.129 475.428 76.068 -117.009 5-6398.505 63.761 574.721 91.955 -276.307 6-7420.607 67.297 650.078 104.012 -359.811 7-8425.125 68.0
18、20 699.308 111.889 -429.919 8-9534.269 85.483 723.852 115.816 -297.266 9-10647.261 103.562 726.877 116.300 -124.838 10-11813.592 130.175 704.819 112.771 170.556 11-12579.981 92.797 655.006 104.801 -117.639 12-13528.991 84.639 582.590 93.214 -84.043 13-14386.183 61.789 496.810 79.490 -173.463 14-1528
19、9.284 46.285 402.652 64.424 -177.761 15-16807.647 129.224 308.043 49.287 783.379 16-17288.372 46.140 222.706 35.633 102.964 17-18270.866 43.339 151.930 24.309 186.492 18-19121.703 19.472 98.143 15.703 36.942 19-2089.800 14.368 37.890 6.062 81.395 8251.005 8247.161 表4-14.2 静水剪力与弯矩计算：静水剪力与弯矩计算见表4-2。理论
20、站距平均载荷(kN)自上而下和(kN)积分和(kN)修正值(kN)剪力值(kN)弯矩值(kNm)修正值(kNm)弯矩值(kNm)理论站号0000000000-1319.389 319.389 319.389 0.301 319.088 998.091 -792.705 1790.796 11-2283.331 602.720 1241.498 0.603 602.118 3879.683 -1585.411 5465.094 22-3265.839 868.559 2712.778 0.904 867.655 8477.431 -2378.116 10855.547 33-4-66.204 8
21、02.355 4383.692 1.205 801.150 13699.038 -3170.821 16869.859 44-5-117.009 685.346 5871.393 1.507 683.839 18348.104 -3963.527 22311.631 55-6-276.307 409.039 6965.779 1.808 407.231 21768.059 -4756.232 26524.291 66-7-359.811 49.229 7424.047 2.109 47.119 23200.148 -5548.937 28749.085 77-8-429.919 -380.69
22、0 7092.586 2.411 -383.101 22164.332 -6341.643 28505.975 88-9-297.266 -677.956 6033.940 2.712 -680.668 18856.062 -7134.348 25990.411 99-10-124.838 -802.794 4553.190 3.014 -805.808 14228.718 -7927.054 22155.772 1010-11170.556 -632.238 3118.158 3.315 -635.553 9744.243 -8719.759 18464.002 1111-12-117.63
23、9 -749.877 1736.043 3.616 -753.493 5425.133 -9512.464 14937.597 1212-13-84.043 -833.920 152.245 3.918 -837.838 475.766 -10305.170 10780.935 1313-14-173.463 -1007.384 -1689.059 4.219 -1011.602 -5278.309 -11097.875 5819.566 1414-15-177.761 -1185.145 -3881.587 4.520 -1189.665 -12129.960 -11890.580 -239
24、.380 1515-16783.379 -401.766 -5468.497 4.822 -406.587 -17089.054 -12683.286 -4405.768 1616-17102.964 -298.801 -6169.064 5.123 -303.924 -19278.325 -13475.991 -5802.334 1717-18186.492 -112.310 -6580.175 5.424 -117.734 -20563.046 -14268.696 -6294.350 1818-1936.942 -75.367 -6767.852 5.726 -81.093 -21149
25、.537 -15061.402 -6088.135 1919-2081.395 6.027 -6837.192 6.027 0-21366.225 -21366.225 020表4-25. 波浪附加弯矩与总弯矩计算：5.1 波浪附加弯矩计算：由载荷分布可知船舶处于中拱状态，可根据公式5-1求得波浪附加弯矩。 （中拱） （公式5-1）1.0M1.00.650.40尾其中，M弯矩分布系数，对于船中M=1；图5-1 M-弯矩分布系数方型系数，取值不得小于0.6，对于本船为0.55；C系数，按公式5-2计算，得8.435。 （） （公式5-2） 波浪附加弯矩计算过程见表5.1：理论站号距0站距离fMM
26、w0000016.250.050.12534431.93212.50.10.2568863.87318.750.150.375.84250.20.5.7531.250.250.625.7637.50.30.75.6743.750.350.875.58500.41.5956.250.451.51062.50.51.51168.750.551.512750.61.51381.250.651.51487.50.70.71593.750.750.9161000.80.117106.250.850.318112.50.90.78701.5619118.750.950.39350.7820125100表5
27、.15.2 合成弯矩计算： 加和静水弯矩值和波浪附加弯矩得最大弯矩值为.475 kNm。各站总弯矩值见表5.2：理论站号静水弯矩值(kNm)波浪附加弯矩(kNm)合成弯矩(kNm)000011790.796 34431.930 36222.72625465.094 68863.870 74328.964310855.547 .800 .347416869.859 .700 .559522311.631 .700 .331626524.291 .600 .891728749.085 .500 .585828505.975 .500 .475925990.411 .500 .9111022155.
28、772 .500 .2721118464.002 .500 .5021214937.597 .500 .0971310780.935 .500 .435145819.566 .700 .26615-239.380 .900 .520516-4405.768 .100 .331817-5802.334 .300 .966218-6294.350 78701.560 72407.210319-6088.135 39350.780 33262.6448520000表5.26. 总弯曲应力计算与稳定性校核6.1 计算剖面抗弯几何特性：根据中横剖面图，计算剖面抗弯几何特性，见下页表6.1。参考轴取船底板
29、上表面，可求得：A=29122.17、B=.854、C=.718。参考轴距中和轴距离=B/A=408.922m,I=2(C-A)= 44.m任意构件距中和轴距离Zi=Zi-由此求得中横剖面各构件剖面模数Wi=I/ Zi专心-专注-专业构件编号构件名称构件尺寸(mm)剖面积（c）距参考轴距离（cm）静力矩（cm）对参考轴惯性矩（cm）自身惯性矩（cm）构件距中和轴距离（cm）剖面模数W1K板645x15.598.69-0.775-76.485 59.276 02A、B、C板8991x13.71260.3840.2650742.899 .106.797 -409.-.383D板2206x13.41
30、9769257.54.26.8-368.-.764E板2765x13.3367.75501.75.5625.73.911-151.-.55F板2350x13.4314.9762.5.25.1.04292.666G、H板7300x11.6846.81245.67353.137舷侧顶板1200x222641565836.58C甲边板2400x11.7280.81595.65.52.401156.7989C甲板7600x7.2547.21595.4.8801186.79910B甲边板1500x13.5202.51105.75.375.201186.83511B甲板8500x12.351049.751
31、105.4.650696.1412A甲板6400x12.35790.4620.65.76.30696.1713内底板9200x10.4956.8150.65.92.250211.4714中纵桁1500x9.672755400-258.-.8915旁纵桁1134x7.686.1893.38040.594.420 92353.073 -333.-.716旁纵桁1347x7.6102.3782.658460.8805.773 .208 -315.-.1817纵壁板（下）2200x9.2202.426052624.667-326.-.8918纵壁板（上）2550x8.8224.4497.5.5.5-1
32、48.-.1719C甲纵骨L150x90x9220.381585.58.1204.35085.69688.520B甲纵骨L200x90x9/14349.021091.7.134.815032.6681176.11121A甲纵骨L200x90x9/14349.02611.7.534.115032.668682.5122内底纵骨L200x90x9/14199.44136.727263.448.3428590.096202.5723外底纵骨L200x90x9/14199.44326382.08.568590.096-272.-.9424外底纵骨L125x75x725.2441108.848787.2
33、442.94-376.-.8425舷侧纵骨L400x100x11.5/1651.3832.6942716.997.230-364.-.0726舷侧纵骨L60051.3350179550423.3927中纵桁C腹板610x1854.91569.586165.55.717023.575-58.-.528中纵桁C面板200x181815382768401160.38229旁纵桁C腹板610x1854.91569.586165.55.717023.5751129.47730旁纵桁C面板200x181815382768401160.38231中纵桁B腹板580x926.1108128214.1.1731
34、6.71129.47732中纵桁B面板300x18271051283770672.8833中纵桁A腹板530x923.85603.514393.475.1635582.888 642.1534中纵桁A面板200x1818576103680194.2A=29122.17B=.854.148 .570 167.03C=.718 表6.16.2 计算总弯曲应力：总弯曲应力按下式计算 由表6.1得最小剖面模数Wc为.799cm,因此最大总弯曲应力为40.351N/mm，远小于许用应力。6.3 稳定性校核： 船体计算状态为中拱，只计算中和轴以下受压板格及纵骨。 6.3.1 纵骨架式板格稳定性校核： 船中
35、0.4L区按下式计算纵骨架式板格临界应力： 构件名称构件编号强框架间距（mm）肋骨间距（mm）板厚（mm）板格临界应力（N/m）K板1240060015.5507.194 A、B、C板2240060013.7396.234 内底板13240060010.4228.338 表6.26.3.2 纵骨稳定性校核：纵骨欧拉应力：式中，包括带板在内的惯性矩；为抗弯弹性模量；为纵骨剖面积；为带板面积。 要求纵骨的临界应力达到屈服极限的倍，即要求理论欧拉应力。因此cr=y(1-y/4E)=0.36E。 纵骨稳定性校核见表6.3-表6.5。名称构件编号尺寸（mm）剖面积（cm2）至参考轴距离（cm）静力矩（cm3）惯性矩（cm4）自身惯性矩（cm4）对中和轴惯性矩（cm4）欧拉应力（E）临界应力（cr）内底纵骨1360010