船体强度与结构结构设计课程设计

船体强度与结构结构设计课程设计目录一、 课程设计任务书.2二、 课程设计主要内容.2三、 船舶数据资料.3四、 课程设计主要步骤（一） 船舶在静水和波浪上剪力弯矩计算. 3（二） 总纵强度计算. 19五、 计算题33一、 课程设计任务书综合应用船舶与海洋结构物强度的有关知识，完成船舶船体中剖面的结构设计，并按相关规范要求进行总纵强度的校核。二、课程设计主要内容（一）、根据相关规范要求完成船舶舯剖面结构设计（二）、船体总纵强度的校核1、船舶在静水中平衡位置的确定2、船舶在波浪中平衡位置的确定3、船舶重量分布曲线的确定4、船舶浮力分布曲线的确定5、船舶载荷分布曲线的确定6、船舶剪力和弯矩分布曲线的确定7、剖面特性计算8、许用应力的确定9、总纵弯曲应力校核10、极限强度校核三、船舶数据资料船舶主尺度：总长：设计水线长：垂线间长：计算船长：型宽：型深：设计吃水：方型系数：四、课程设计主要步骤（一）船舶在静水和波浪上剪力弯矩计算主要数据：计算船长 船 宽 海水比重 设计吃水 选取满载出港的装载状况作为计算基础，由设计任务书所给的参考数值可得到以下参数：排水量 平均吃水 重心纵向位置 浮心纵向坐标 漂心纵向坐标 水线面积 纵稳心半径 其中的水线面积是由所给的厘米吃水吨数求出，公式为：。纵稳心半径是由所给的厘米纵倾力矩 求出的，公式为：。波型和波浪参数选择：波长： 波高：坦谷波垂向坐标值采用余弦级数展开式计算：各理论站从坦谷波波面到波轴线垂向坐标值经计算列入下表：中垂站号1010911812713614515416317218119020坦谷波垂向坐标2.5002.4102.1401.6921.0800.340-0.465-1.247-1.905-2.345-2.500中拱站号0201192183174165156147138129111010注：表中值由波轴线向下为正，向上为负。满载出港状态的弯矩和剪力计算船舶纵倾调整（1）船舶在静水中平衡位置的确定第一次近似：首吃水：尾吃水：排水体积：第二次近似：首吃水：尾吃水： 0.1%-0.5%满足设计要求 0.05%-0.1%满足设计要求船舶在静水中平衡位置的计算第一次近似第二次近似首尾首尾理论站号力臂系数6.2954549.8203946.50605710.07708浸水面积i力矩Mi浸水面积i力矩Mi(1)(2)(3)(4)(5)(6)0-1020.06473-200.647323.16262-231.6261-933.71833-303.464937.27891-335.512-863.35455-506.836467.11161-536.8933-793.23394-652.637697.35763-681.5034-6120.4773-722.8638124.9317-749.595-5136.944-684.7201141.5021-707.5116-4153.0582-612.233157.8154-631.2627-3156.1966-468.5899160.9444-482.8338-2159.3979-318.7959164.0734-328.1479-1156.7992-156.7992161.3822-161.382100154.20060158.73980111148.9427148.9427153.4538153.4538122143.7032287.40634148.1893296.3786133130.7399392.21966135.0344405.1032144117.9528471.81139122.0925488.370115596.02153480.1076799.58099497.904916674.85606449.1363377.89162467.349717752.99405370.9583355.27795386.945718834.52043276.1634536.05474288.437919920.6668186.0012421.52843193.7559201014.19136141.9136314.56969145.69692082.034-1422.9272160.276-1522.86修正值17.12805-29.3668218.58893-42.9647修正和2064.906-1393.5612141.687-1479.9Vi=Li11924.8312368.24Xb=L*Mi/i-3.89742-3.9905(V0-V2)/V03.436%-0.154%合格0.1%-0.5%(Xg-Xb)/L-0.042%0.039%合格0.05%-0.1%(2)船舶在波浪上平衡位置的计算a.用麦卡尔法计算船舶在波谷的平衡位置取静水平衡线,作为波轴线，按照波谷在船中由邦戎曲线图上量出浸水面积,再取,即波轴线上移1m,量出各站横剖面浸水面积，列下式计算波轴线移动参数，b。船舶在波谷上平衡位置的计算理论站号静水波面浸水面积移轴波面浸水面积力臂系数k(2)*(5)(4)*(5)(4)*(5)2(1)(2)(3)(3)-(2)(5)(6)(7)(8)024.5557719129.826235.2704550000167.3024127780.1578712.85545167.3024112.8554512.85545295.34494126110.113114.768182190.689929.5363659.072733118.257838134.953316.695453354.773550.08636150.25914133.5297697151.727818.198054534.119172.79221291.16885135.1699594154.014318.844325675.849894.22161471.10816136.9139142156.188219.27436821.4835115.6458693.8757128.0692541147.419319.357896.4848135.45948.158122.2645231141.764519.58978.116215612489114.3901736133.890219.591029.512175.51579.510110.0313299129.531319.5101100.313195195011106.5066904125.955219.44855111171.574213.9342353.27412106.4946495125.989119.49446121277.936233.93352807.2021371.21704609121.914450.697413925.8216659.06628567.8614102.6457594120.648518.00271141437.041252.0383528.5321594.10717738110.42816.32087151411.608244.81313672.1961684.4393753999.1746514.73527161351.03235.76433772.2291769.1070936881.2868712821207.05623519.9551850.6663455659.517768.85141118911.9942159.32542867.8571930.5650845835.082954.51786919580.736685.839521630.951207.8803028418.0018170.12151420157.60612.43028448.605681909.459413348.12617048.813331.28840172.6524678348.126+166.5644b=228.92683331.288+2008.633b=2857.436=-0.11163b=1.607713首吃水=+b=8.002141尾吃水=+=9.965447横剖面浸水面积计算(波谷)123456789101112理论站号乘数k=b/20*k=+（8）*（6）（3）+（9）im2mmmm2m/m2c/m2m2m20049.11154-0.111630-0.1116310.5409110.54091-1.1766723.96744059.652451167.30241-0.111630.080386-0.0312412.8554512.85545-0.4016566.9007766.9007780.157872295.34494-0.111630.1607710.04914214.7681814.768180.72574396.07068192.1414110.113133118.2578-0.111630.2411570.12952816.6954516.695452.162528120.4204361.2611134.953344133.5298-0.111630.3215430.20991418.1980518.198053.820019137.3498549.3992151.727855135.17-0.111630.4019280.29029918.8443218.844325.470493140.6405703.2023154.014366136.9139-0.111630.4823140.37068519.274319.27437.144694144.0586864.3516156.188277128.0693-0.111630.56270.45107119.3519.358.728216136.7975957.5823147.419388122.2645-0.111630.6430850.53145619.519.510.3634132.62791061.023141.764599114.3902-0.111630.7234710.61184219.519.511.93092126.32111136.89133.89021010110.0313-0.111630.8038570.69222819.519.513.49844123.52981235.298129.53131111106.5067-0.111630.8842420.77261319.4485519.4485515.0262121.53291336.862125.95521212106.4946-0.111630.9646280.85299919.4944619.4944616.62875123.12341477.481125.9891131371.21705-0.111631.0450130.93338450.697450.697447.32016118.53721540.984121.91441414102.6458-0.111631.1253991.0137718.0027118.0027118.25061120.89641692.549120.6485151594.10718-0.111631.2057851.09415616.3208716.3208717.85758111.96481679.471110.428161684.43938-0.111631.286171.17454114.7352714.7352717.30719101.74661627.9459910709-0.111631.3665561.25492712.1797812.1797815.2847384.391831434.66181.28687181850.66635-0.111631.4469421.3353138.8514118.85141111.819462.485751124.74359.51776191930.56508-0.111631.5273271.4156984.5178694.5178696.3959436.96102702.259535.08295202015.76061-0.111631.6077131.4960840.2430280.2430280.3635918.062098161.24216.003632138.38619906.251.025L5.7751011检验=L*10=12657.91Xb=L*11/10=53.7595b.用麦卡尔法计算船舶在波峰的平衡位置取静水平衡线,作为波轴线，按照波峰在船中由邦戎曲线图上量出浸水面积,再取,即波轴线下移1m,量出浸水面积，列下式计算波轴线移动参数，b。船舶在波峰上平衡位置的计算理论站号静水波面浸水面积移轴波面浸水面积力臂系数k(2)*(5)(4)*(5)(4)*(5)2(1)(2)(3)(3)-(2)(5)(6)(7)(8)01.0925890-1.092590000112.248926.83827-5.41065112.24892-5.41065-5.41065239.7316430.41772-9.31392279.46327-18.6278-37.2557371.3270558.1829-13.14413213.9811-39.4324-118.2974106.007689.5082-16.49944424.0302-65.9974-263.995135.17116.9422-18.22775675.8498-91.1386-455.6936166.8448147.4156-19.429261001.069-116.575-699.4527185.231165.7089-19.522271296.617-136.655-956.5878201.2227181.6749-19.547881609.782-156.382-1251.069207.1824187.6558-19.526591864.641-175.739-1581.6510207.5689188.0313-19.5375102075.689-195.375-1953.7511199.2726179.6847-19.5879112191.998-215.467-2370.1312185.3908165.7908-19.6122224.69-235.2-2822.413158.9055139.7055-19.2132065.771-249.6-3244.814130.7051112.2627-18.4424141829.871-258.193-3614.711594.1071878.44277-15.6644151411.608-234.966-3524.491663.3924250.72831-12.6641161014.279-202.626-3242.011738.3572629.07743-9.2798317652.0734-157.757-2681.871821.5581615.3089-6.2492618388.0468-112.487-2024.761911.465457.499608-3.9658419217.8435-75.351-1431.67203.6865542.25-1.436552073.73109-28.7311-574.6222240.468-287.34221323.28-2771.71-32854.624678-287.342+-138.586b=-102.082-2771.71+-1642.73b=-1417.04=-0.32634b=1.413227首吃水=+b=7.592945尾吃水=+=9.750738横剖面浸水面积计算(波峰)123456789101112理论站号乘数k=b/20*k=+（8）*（6）（3）+（9）im2mmmm2m/m2c/m2m2m2002.185178-0.326340-0.32634-2.18518-2.185180.7131071.449143001112.24892-0.326340.070661-0.25568-5.41065-5.410651.38337813.632313.63236.838272239.73164-0.326340.141323-0.18502-9.31392-9.313921.7232241.4548682.9097130.417723371.32705-0.326340.211984-0.11435-13.1441-13.14411.50308872.83013218.490458.182944106.0076-0.326340.282645-0.04369-16.4994-16.49940.720905106.7285426.913989.508255135.17-0.326340.3533070.026968-18.2277-18.2277-0.49157134.6784673.3919116.942266166.8448-0.326340.4239680.09763-19.4292-19.4292-1.89687164.948989.6878147.415677185.231-0.326340.4946290.168291-19.5222-19.5222-3.28541181.94561273.619165.708988201.2227-0.326340.5652910.238952-19.5478-19.5478-4.671196.55171572.414181.674999207.1824-0.326340.6359520.309614-19.5265-19.5265-6.04569201.13671810.23187.65581010207.5689-0.326340.7066130.380275-19.5375-19.5375-7.42964200.13922001.392188.03131111199.2726-0.326340.7772750.450937-19.5879-19.5879-8.83289190.43972094.837179.68471212185.3908-0.326340.8479360.521598-19.6-19.6-10.2233175.16752102.01165.79081313158.9055-0.326340.9185970.592259-19.2-19.2-11.3714147.53411917.943139.70551414130.7051-0.326340.9892590.662921-18.4424-18.4424-12.2258118.47931658.71112.2627151594.10718-0.326341.059920.733582-15.6644-15.6644-11.491182.616051239.24178.44277161663.39242-0.326341.1305820.804243-12.6641-12.6641-10.18553.20739851.318350.72831171738.35726-0.326341.2012430.874905-9.27983-9.27983-8.1189630.23829514.05129.07743181821.55816-0.326341.2719040.945566-6.24926-6.24926-5.9090915.64907281.683215.3089191911.46545-0.326341.3425661.016227-3.96584-3.96584-4.030197.435253141.26987.49960820207.373109-0.326341.4132271.086889-2.87311-2.87311-3.122752.1251842.503594.52138.38619906.251.025L5.7751011检验=L*10=12657.91Xb=L*11/10=53.7595求出平衡位置后，即可以从邦戎曲线上得到船舶处于平衡位置时的横剖面浸水面积，计算结果见下表。船舶平衡位置的计算结果静水波峰波谷理论站号力臂系数横剖面浸水面积力矩函数Mi横剖面浸水面积力矩函数Mi横剖面浸水面积力矩函数Mii/m2Mi/m2i/m2Mi/m2i/m2Mi/m2（1）（2）（3）（4）=(2)*(3)（5）（6）=(2)*(5)（7）（8）=(2)*(7)0-1023.16262-231.6262.898286-28.982947.93487-479.3491-937.27891-335.5113.6323-122.69166.90077-602.1072-867.11161-536.89341.45486-331.63996.07068-768.5653-797.35763-681.50372.83013-509.811120.4204-842.9434-6124.9317-749.59106.7285-640.371137.3498-824.0995-5141.5021-707.511134.6784-673.392140.6405-703.2026-4157.8154-631.262164.948-659.792144.0586-576.2347-3160.9444-482.833181.9456-545.837136.7975-410.3928-2164.0734-328.147196.5517-393.103132.6279-265.2569-1161.3822-161.382201.1367-201.137126.3211-126.321100158.73980200.13920123.52980111153.4538153.4538190.4397190.4397121.5329121.5329122148.1893296.3786175.1675350.335123.1234246.2468133135.0344405.1032147.5341442.6023118.5372355.6116144122.0925488.3701118.4793473.917120.8964483.585515599.58099497.904982.61605413.0803111.9648559.823816677.89162467.349753.20739319.2444101.7466610.479417755.27795386.945730.23829211.66884.39183590.742818836.05474288.437915.64907125.192662.48575499.88619921.52843193.75597.43525366.9172836.96102332.6492201014.56969145.69694.25035942.5035916.1242161.2422157.973-1522.862141.961-1470.852170.416-1636.67修正值18.86616-42.96473.5743236.76036932.02953-159.053修正和2139.107-1479.92138.386-1477.622138.386-1477.62Vi=Li12353.3412349.1812349.18Xb=L*Mi/i-3.99531-3.9905-3.9905(V0-Vi)/V0-0.0003402.95E-16(Xg-Xb)/L0.0004270.0003850.0003852重量的分布计算原理如图1所示，某项以任意规律分布在两个理论站距内的重量为P,重心距i站的距离为a。按照分布原则用i-1i站的距离及ii+1两个理论站距内的阶梯形曲线代替真实分布。设两个理论站距内的重量分布为P1和P2,根据分布原则可得： (1)由此可得 将和除以理论站距长度,即可得到该重量在两个站距内的载荷强度,。然而在设计中我们所遇到的是分布在三个理论站距或更多站内的重量，这时根据静力等效原则，此时只能列出两个方程式，所以一般根据具体情况，采用图2的假设分布规律进行分布。对于这种情况我们可以分两步：第一步，以1.5代替，利用式(1)求出和；第二步，直接利用式(1)，将和分别向其邻近的两个理论站内分布，最后，对中间理论站距迭加来自和的相应分配值，从而求得各站内的等效重量分布。图示如下： 图1 图2求出的各理论站重量分布如下表：站号12345678910重量/tf609.37355.84423.01214.04818.39814.67760.22746.37746.371491.15站号11121314151617181920重量/tf897.84863.87863.871062.32331.05778.87757.2162.8141.1519.493剪力弯矩计算表格静水时剪力和弯矩计算载荷及其积分理论站号横剖面浸水面积（2）成对和站距内浮力站距中的重力站距中的载荷(5)-(4)（6）栏自上而下的和（7）栏成对和（8）栏自上而下的和*L/2*(3)（5）-（4）m2tftf（1）（2）（3）（4）（5）（6）（7）（8）（9）023.1626200000137.2789160.44153178.88805609.3747430.4866430.4866430.4866430.4866267.11161104.3905308.96332355.838846.87552477.3622907.84881338.335397.35763164.4692486.77755423.0114-63.7661413.5961890.95822229.2944124.9317222.2893657.90694214.0445-443.862-30.2664383.32972612.6235141.5021266.4338788.56081818.394429.83364-0.43275-30.69912581.9246157.8154299.3175885.8863814.6692-71.2171-71.6499-72.08262509.8427160.9444318.7598943.42938760.2172-183.212-254.862-326.5122183.338164.0734325.0178961.95099746.3672-215.584-470.446-725.3081458.0229161.3822325.4556963.24687746.3672-216.88-687.326-1157.77300.250310158.7398320.122947.461071491.151543.6897-143.636-830.961-530.71111153.4538312.1936923.9954897.8433-26.1521-169.788-313.424-844.13512148.1893301.6431892.76929863.8707-28.8985-198.686-368.474-1212.6113135.0344283.2237838.25362863.870725.61713-173.069-371.756-1584.3714122.0925257.1269761.015361062.32301.3043128.235-44.8344-1629.21599.58099221.6735656.08433331.0518-325.033-196.798-68.5626-1697.761677.89162177.4726525.26347778.8668253.603456.80581-139.992-1837.751755.27795133.1696394.14033757.2065363.0662419.872476.6778-1361.081836.0547491.3327270.3162462.80859-207.508212.3644632.2364-728.841921.5284357.58317170.428241.1483-129.2883.08447295.4488-433.3912014.5696936.09812106.8391619.48802-87.3511-4.2666778.8178-354.573剪力弯矩修正值剪力修正值弯矩（7）20*i/20N=(7)-(10)(9)*L/2（12）20*i/20M=(12)-(13)tftf（10）（11）（12）（13）（14）00000-0.213333462430.71243.03-51.19151294.222-0.426666924477.78883864.444-102.3833966.827-0.640000386414.23616437.086-153.5746590.66-0.853333848-29.41317543.95-204.7667748.716-1.066667310.6339177455.306-255.9577711.263-1.280000772-70.36997247.168-307.1497554.316-1.493334234-253.3696304.364-358.346662.705-1.706667696-468.7394210.038-409.5324619.569-1.920001158-685.406866.9727-460.7231327.696-2.13333462-141.503-1532.43-511.915-1020.51-2.346668082-167.441-2437.44-563.106-1874.33-2.560001544-196.126-3501.41-614.298-2887.11-2.773335006-170.296-4574.85-665.489-3909.37-2.986668468131.2217-4704.31-716.681-3987.63-3.20000193-193.598-4902.29-767.872-4134.42-3.41333539260.21914-5306.51-819.063-4487.45-3.626668854423.4987-3930.11-870.255-3059.85-3.840002316216.2044-2104.52-921.446-1183.08-4.05333577887.13781-1251.42-972.638-278.778-4.266669240-1023.83-1023.830NNmax百分比MMmax百分比4.26666924685.40551%1023.8297748.71613%波峰时剪力和弯矩计算载荷及其积分理论站号横剖面浸水面积（2）成对和站距内浮力站距中的重力站距中的载荷(5)-(4)（6）栏自上而下的和（7）栏成对和（8）栏自上而下的和*L/2*(3)（5）-（4）m2tftf（