油船重要管路系统应力强度计算及振动分析-船舶与海洋工程专业论文.docx

大连理工大学专业学位颂：I=学位论义摘要油船长期工作于恶劣环境中，甲板上的主要管路系统会受到风载荷和波浪载荷 的交互作用，产生管道支撑或端点附加位移等；工作温度的改变会使管道因为热胀 冷缩产生应力问题，还伴随振动产生。为了保证管道具有足够的柔性，满足管道荷 载在制造商或国际规范(如NEMA SM-23、API一610、API-617等)规定的许用范围 内，解决管道动力学问题等，研究油船重要管路系统应力强度及振动分析是十分重要的。本文借助于管道应力分析软件CAESAR对油船主要管路系统进行应力强度和振动分析。主要工作包括两方面：(1)以大连新船重工有限责任公司设计建造的大型油船为依托，对油船甲板重要 管路系统应力强度计算及振动分析的模型建立，进行初步的分析和结果处理。(2)由初步的分析结果，依据规范要求对模型的设计进行了修改，进一步的进行了分析和处理。关键词：油船管路系统；应力强度分析；振动分析；CAESARStress Intensity Calculation and Vibration Analysis of ImportantPipeline System on Oil TankAbstractOil t甜山s serve in the vile environment in a 10ng term，and the maj or pipeline svstem on the deck undergoes intertraction of wind loads and wave loads．It gives birth to ex缸．a displacement at endpoint or suppoIrt of pipeline．The changes of workingtemperature will bring problems of pipeline’s stress and vibration because of expandonheatin2 aIld contract on cooling．In order to ensure enough pipeline’S flexibility,make the loads on pipeline satisfy the promised range that producer or the international criterion gives(such as NEMA SM．23、API·610、API-617 and SO on)and solve the pipeline 7S dynamics problems，it is very important to study the important pipeline system 7s stress intensity and vibration analysis on oil tank．This paper studies the important pipeline system’s stress intensity and vibratiOn analysis on oil tank through the software CAESAR．Maj or tasks include two aspects：(1)Set up the important pipeline system’S stress intensity and vibration analysismodel on oil t砌水deck relies on the ship built in Dalian New Ship Heavy Industry Co．LTD and deal with the result after primary analysis．(2)Following the first result，make a nlrther analysis and treatment of the modified model according to the criterion．Keywords：pipeline system on oil tank；stress intensity analysis；vibration analysis： CAESAR独创性说明作者郑重声明：本硕士学位论文是我个人在导师指导下进行的研究 工作及取得研究成果。尽我所知，除了文中特别加以标注和致谢的地方 外，论文中不包含其他人已经发表或撰写的研究成果，也不包含为获得 大连理工大学或者其他单位的学位或证书所使用过的材料。与我一同工 作的同志对本研究所做的贡献均已在论文中做了明确的说明并表示了谢 意。作者签名：；6裼 日期：÷Ⅳ．，