摘 要：随着我国进出口量的快速增长，集装箱运输成为国际海运不可缺少的有利途径，船舶码头资源变得越来越宝贵。并且，随着码头形式的多样化，船舶所受到的自然环境越来越恶劣。为了提升船舶工作性能，水动力性能分析就显得格外重要。
就目前来看，国内外大多数研究人员多采用模型试验，而利用软件进行数值仿真研究的相对较少。本文就是利用ANSYS-AQWA软件进行模拟，研究船舶的水动力性能并校核系泊缆张力和护舷反力。本论文的研究内容为以下几点:
（1）码头系泊船舶水动力频域分析。首先根据所选船的型值表在ANSYS软件中建立模型，导入到AQWA形成DAT文件。然后进行水动力频域分析，得到相关的水动力参数随频率的变化规律，并且比较不同水深下水动力参数的变化情况。
（2）码头系泊船舶时域耦合分析。这一部分的工作使用的是AQWA-DRIFT模块，设置不同的工况（不同风速、浪向和波高），研究在环境条件即风、浪和流的联合作用下船舶的性能，从系泊缆张力和护舷反力两个方面进行分析。
（3）船舶码头系泊形式的改善。利用AQWA后处理软件，整理分析原有系泊方案下系泊缆张力的分布情况，在此基础上依次对艏艉缆和艏艉横缆进行优化。比较优化前后系泊缆张力的变化情况，得出最终的优化方案。
关键词：码头系泊；势流理论；AQWA；完善设计；时域耦合
Abstract：With the rapid increase in foreign imports and exports of China, container transport has become an indispensable way of transport internationally. Ship dock, as a resource, is becoming more and more valuable. At the same time, the environment that ship suffers is getting worse since the variety of the dock. In order to improve the performance of the ship, it is a necessity to study and analyze hydrodynamic performance of the ship.
At present, model test is the most popular measure to study ship mooring at the dock. Numerical simulation is seldom used in the study. In this paper, ANSYS-AQWA software is used to analyze the mooring of the ship and fender pressure based on the theory of three-dimensional potential flow. The main contents of the paper are as follows:
(1) Analysis of hydrodynamic frequency domain of ship at the dock. Firstly, according to the type table, establish the finite element model by using ANSYS software, import it into AQWA to form DAT file. Then, carry out the hydrodynamic performance analysis in the frequency domain in AQWA-LINE module. The changing rules of the radiation damping, additional mass and motion response amplitude (RAO) with frequency are obtained. The effects of different water depth on ship hydrodynamics Performance are compared.
(2) Time-domain coupling analysis about the ship mooring. Using the AQWA-DRIFT module, the change of the cable tension of the ship and fender pressure are studied under the combined action of wind, wave and flow. At the same time, the influence of different wave direction, wind speed and wave height on time domain coupling analysis is studied.
(3) Improvement of mooring form of ship at the dock. At first, by using the post-processing module of AQWA, analyses the distribution of tension of mooring cables under the original mooring scheme by using the AQWA-DRIFT module, then optimize the fore and stern cables .Finally, optimize the lateral ones . The results of the mooring scheme before and after the optimization are analyzed, and the final optimization scheme is obtained from the mooring cable tension and the fender pressure.
Keyword: dock mooring; theory of potential flow; AQWA; improved design; time-domain coupling
目录
第一章 绪论 1
1.1 课题的理论意义及应用价值 ANSYS-AQWA风浪流作用下船舶码头系泊水动力性能分析:http://www.chuibin.com/wuli/lunwen_206622.html