船舶结构力学习题集答案(交大版)

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1、船舶结构力学习题集答案(交大版)目录第1章绪论................................................................................2第2章单跨梁的弯曲理论............................................................2第３章杆件的扭转理论............................................................15第４章力法......................

2、........................................................17第5章位移法............................................................................28第6章能量法............................................................................41第7章矩阵法...........................................

3、.................................56第9章矩形板的弯曲理论..........................................................69第10章杆和板的稳定性............................................................751第1章绪论１．１题１）承受总纵弯曲构件：连续上甲板，船底板，甲板及船底纵骨，连续纵桁，龙骨等远离中和轴的纵向连续构件（舷侧列板等）２）承受横弯曲构件：甲板强横梁，船底肋板，肋骨３）承受局部弯

4、曲构件：甲板板，平台甲板，船底板，纵骨等４）承受局部弯曲和总纵弯曲构件：甲板，船底板，纵骨，递纵———————————————————————————————————————————————桁，龙骨等１．２题甲板板：纵横力（总纵弯曲应力沿纵向，横向货物或上浪水压力，横向作用）舷侧外板：横向水压力等骨架限制力沿中面内底板：主要承受横向力货物重量，骨架限制力沿中面为纵向力舱壁板：主要为横向力如水，货压力也有中面力第2章单跨梁的弯曲理论２.1题设坐标原点在左跨时与在跨中时的挠曲线分别为v(x)与v(x1)１）图2.1?v(x)?M0x2EI2?N?x

5、36EI2?l43p(x?l)?6EIl23p(x?l)?6EI3lp(x?3l)6EI3原点在跨中：v1(x1)?v0?M0x12EI?N?x16EI3?l43?v(l)?0v'(l)?0p(x?l)12?12，?p'6EI?v1(0)?0N1(0)??2２）图2.2?v(x)??0x?Mx22EI?N?x36EIx———————————————————————————————————————————————0?l3p(x?l)6EI3p(x?l)6EI３）图2.3?v(xx)??0xx?N?x36EI??qxdx6EI3?l

6、２.２题a)v1?vpppl?1131?pl?1131??vp?(3???)??(?2?)????6EI?16444?6EI?41624?pl333=EIpl3V2?3?1?91?13?pl3pl???()???6EI?4?EIEI4???162?2b)v(0)?'?Ml3EI?Ml6EI?2Pl296EI2(1?2)2=?0.1Pl6EI2?5Pl3?27EI2Pl2?73PlEI?(l)??Ml3EI?Ml6EI2?6EI2(1?)32=?0.1Pl6EI?4Pl———————————————————————————————————

7、————————————3?27EI22??107PlEI?l??2l?2p???l??3??3?vl??3EIl6EI??1????1????m2?3?m1??3??????=37pl22430EI4c)vl3??2??192EI?768EI2304EIql3ql47ql5ql4v(0)??'24EI??pl216EI???ql26EI?l?ql11?ql3?1?????96EI8EI?3612?3d)2.1图、2.2图和2.3图的弯矩图与剪力图如图2.1、图2.2和图2.3图2.13图2.2图2.32.3题1）??右??M?Ml6E

8、I13q1l?2ql324EI?Ml?l?q?q??0??21?45EI?23EI??2l22）?0??Ml3EI——————————————————