船舶在随机冰作用下的运动建模及应用

发布时间：2018-06-05 04:33

  本文选题：随机冰模型 + 船舶运动数学模型　； 参考：《大连海事大学》2015年硕士论文

【摘要】：本文总结国内外船舶冰区航行运动建模的研究现状,结合《STCW公约》马尼拉修正案针对极地水域航行船舶的船长和高级船员的培训提出的指导性建议,和挪威船级社提出的航海模拟器的新认证标准,阐述研究船舶在随机冰作用下运动建模这一课题的必要性。本文综合分析了海冰的物理性质和力学性质,并在分析破冰船破冰过程的基础上进行了船舶在随机冰区航行时的受力分析,基于日本MMG分离模型思想建立了船舶在随机冰作用下的三自由度运动数学模型。建模过程中,分别计算裸船体、螺旋桨及舵叶的水动力和力矩；同时考虑船舶所受到的随机海冰的干扰,最终建立随机冰作用下船舶运动方程组。为检验模型的正确性,本文利用C++编程语言对所建立的数学模型进行了仿真,采用四阶龙哥-库塔积分方法求解运动方程组,实现了实时显示船舶的运动位置和状态。本文以破冰船AHTS/IB Tor Viking Ⅱ为例,进行了直航试验和旋回试验,通过仿真测试结果可知,所建模型是正确和合理的。本文建立的随机冰作用下船舶运动数学模型,在冰区航行船舶操纵性预报中的应用,不仅为冰区船舶安全航行提供决策；而且为完善航海模拟器中的船舶冰区航行操纵数学模型打下基础,具有一定的实际应用价值。
[Abstract]:In this paper, we summarize the research status of ship navigation motion modeling in ice regions at home and abroad, and combine the Manila Amendment of "STCW Convention" with the guiding suggestions for the training of masters and officers of ships sailing in polar waters. And the new certification standard of navigation simulator put forward by Norwegian Classification Society. The necessity of studying the subject of ship motion modeling under the action of random ice is expounded. In this paper, the physical and mechanical properties of sea ice are comprehensively analyzed, and on the basis of analyzing the ice breaking process of icebreaker, the force of ship sailing in random ice area is analyzed. Based on the idea of Japanese MMG separation model, a three degree of freedom mathematical model of ship motion under the action of random ice is established. In the process of modeling, the hydrodynamic force and torque of the naked hull, propeller and rudder blade are calculated, and the equations of ship motion under the action of random ice are established considering the disturbance of random sea ice to the ship. In order to verify the correctness of the model, the mathematical model is simulated by C programming language, and the motion equations are solved by the fourth order Rungo-Kutta integral method, which can display the position and state of the ship in real time. Taking AHTS / IB Tor Viking 鈪，

本文编号：1980535