【作者】 林姗；

【导师】 陈明栋；

【作者基本信息】 重庆交通大学 ， 水力学及河流动力学， 2011， 硕士

【摘要】 船舶操纵性是船舶重要航行性能之一,与船舶航行的安全性和经济性密切相关。随着航道通航能力的不断提高,通航船舶密度及数量将大大增加,并向着大型化、高速化方向发展,势必给航道或通航建筑物等的通航条件提出了更高的要求。加之航运环境的复杂多变,驾驶人员素质差异较大,致使船舶操纵日趋困难,航运安全问题己经受到了广泛的关注。为确保航道、船舶及工程的安全,船舶操纵性的研究日益显示其重要性。本论文从水动力学观点出发,基于船舶操纵运动数学模型,开发船舶操纵运动仿真平台,并利用开发的仿真平台开展船舶操纵运动特性研究。论文的主要研究工作和相关结论如下:①系统地调查、总结国内外本项研究的动态和成果,总结成功的经验及存在的问题,分析得出本文的研究思路;②基于平面二维水流数学模型,利用Fortran语言编写程序进行计算。结合实际工程对该数值模拟方法进行验证,结果表明此模型达到了一定的精度,能够满足工程需要。③基于船舶操纵运动数学模型,采用VB语言编写计算程序开发仿真平台,仿真平台给出了Windows风格的菜单、工具栏及窗口,实现了计算过程的可视化和动态演示。④利用仿真平台对工程河段代表船舶进行了Z形试验和旋回试验仿真,并同实测结果进行比较,结果表明此仿真平台满足工程开发要求。⑤在水流数学模型和船舶运动数学模型验证合理的基础上,耦合水流数学模型,利用仿真平台开展菜园坝河段船舶操纵运动试验,研究船舶在典型水域的操纵特点。试验结果表明该仿真平台可以作为一种预报船舶在一定条件下操纵运动的工具,具有广泛的应用前景。更多还原

【Abstract】 Ship maneuverability is considered as an important index and relates closely to the navigation safety and economy. As the navigation abilities have been enhanced quickly,the transport quantity of ships increase so fast that the navigation conditions of waterway and navigation structures must be challenged with difficulties due to enlargement and rapid development of ships. In addition,it is obvious that there are more and more difficulties for ship maneuvering because of the complexity of navigation condition and distinct discrepancy of drivers.Thus,the attention of navigation safety has been largely paid.Therefore,in order to insure the safety of waterway and ships, it is more and more important for the researches on ship maneuvering.According to the reseaches results on hydrodynamics, the simulation platform for ship maneuvering has been developed based on the ship maneuvering motion mathematical model in this paper.The main reseach work and relevant results are listed as follows:①The relevant research results and successful experiences and existing problems get investigated and concluded. Also,the research method was analyzed.②The simulation code has been obtained based on fortran by building the flow mathematical model with two dimension and corresponding verfication have been carried out.The results showed that the simulation precision can meet with the need of practical engineering.③Based on the ship maneuvering motion mathematical model,the simulation platform has been developed. In addition, there are menus,tools and windows with style of Microsoft Windows on this platform which can achieve visualization and dynamic display.④Various tests of ship maneuvering simulation including turning circle, zig-zag maneuvering on the practical engineering reach are carried out by this platform, which showed that the results are satisfactory by analyzing the simulation precision and can be applied with the practical engineering studies.⑤Based on the reasonable flow and ship motion mathematical model, the tests of ship maneuvering simulation on the Caiyuanba reach were achieved on this platform and ship maneuvering characteristics on typical water area were investicated.The results showed that the platform can be deemed as a tool that forecasts ship maneuvering under some certain conditions. Furthermore, it is foreseen that the platform will be more heavily used as its development becomes more sophisticated and user friendly.更多还原