船舶螺旋桨偏转效应仿真及其在教学中的应用

发布时间：2018-04-19 14:31

本文选题：螺旋桨偏转效应 + 多媒体仿真　；参考：《大连海事大学》2016年硕士论文

【摘要】：随着计算机和信息科学技术日新月异的发展,多媒体教学在大学课堂教学中得到了广泛应用。近年来,国家教育管理部门对高校多媒体教学给予了高度的重视,同时,多媒体授课的课时率也作为现在高校教学评估体系的指标之一。目前,航海教学中普遍采用了两种辅助教学的方式:一是各种模拟器辅助教学;二是课堂中采用多媒体技术辅助教学。《船舶操纵》是航海类专业的重要专业课,其中包含的螺旋桨偏转效应这部分教学内容具有复杂、抽象、涉及的基础知识多的特点,由于学生缺乏海上航行经验,对理论知识理解困难,课堂教学效果不理想。因此本文在此部分课堂教学的研究中,将使用多媒体课件进行教学内容的仿真作为辅助手段,以达到提高课堂教学效果,保证课堂教学质量的目的。本文在系统全面地了解"螺旋桨偏转效应"这一内容课堂教学方面,螺旋桨横向力计算方法,以及国内外多媒体辅助教学课件开发模型与教学设计领域研究现状的基础上,分析瀑布模型、快速原型模型、增量模型、螺旋模型四种经典软件开发模型的特点,结合多媒体课件的软件属性、教学功能及"以学生为中心"的教学设计思想,提出"瀑布—增量"多媒体课件开发模型及流程;为了深入了解《船舶操纵》中螺旋转偏转效应教学内容的本质,本文系统分析螺旋桨偏转效应生成机理和致偏效果,总结了现今螺旋桨三种横向力的计算方法,并提出了螺旋桨横向力计算部分中基于径向基函数的四象限螺旋桨推力转矩系数的计算方法;在充分理论分析的基础上,应用"瀑布—增量"多媒体课件开发模型,完成"螺旋桨偏转效应"教学内容的多媒体课件开发仿真工作,在开发过程中采用Flash软件和其他辅助软件,对教学内容进行仿真,并且实现良好的交互功能。此多媒体课件的开发仿真方法,能作为开发其他航海教学类课程教学的参考,为今后的航海教学提供一种有效的学习工具。
[Abstract]:With the rapid development of computer and information science and technology, multimedia teaching has been widely used in college classroom teaching.In recent years, the national educational management department has attached great importance to the multimedia teaching in colleges and universities. At the same time, the class hours rate of multimedia teaching is one of the indicators of the current teaching evaluation system in colleges and universities.At present, two kinds of auxiliary teaching methods are commonly used in navigation teaching: one is assistant teaching by various simulators, the other is the use of multimedia technology to assist teaching in class.The teaching contents of propeller deflection effect are complicated, abstract and involve many basic knowledge. Because of the students' lack of maritime navigation experience and difficulty in understanding theoretical knowledge, the classroom teaching effect is not ideal.Therefore, in this part of the classroom teaching research, the use of multimedia courseware for teaching content simulation as an auxiliary means to achieve the purpose of improving classroom teaching results and ensuring classroom teaching quality.On the basis of the systematic and comprehensive understanding of the "propeller deflection effect" in classroom teaching, the calculation method of propeller lateral force, and the current research situation in the field of multimedia aided teaching courseware development and teaching design at home and abroad, this paper presents a comprehensive understanding of the "propeller deflection effect" in the classroom teaching.This paper analyzes the characteristics of four classical software development models, waterfall model, rapid prototyping model, incremental model and spiral model, and combines the software attributes of multimedia courseware, teaching function and the teaching design idea of "student-centered".In order to understand the essence of the teaching content of helical deflection effect in ship maneuvering, this paper systematically analyzes the mechanism of propeller deflection effect and its deflecting effect, and puts forward the development model and process of "waterfall increment" multimedia courseware, in order to understand the essence of the teaching content of helical deflection effect in ship maneuvering.This paper summarizes the calculation methods of three kinds of transverse forces of propeller, and puts forward the method of calculating the thrust torque coefficient of four quadrant propeller based on radial basis function in the calculation part of propeller transverse force, based on the sufficient theoretical analysis,Using the "waterfall incremental" multimedia courseware development model, the multimedia courseware development and simulation of the "propeller deflection effect" teaching content is completed. In the course of development, Flash software and other auxiliary software are used to simulate the teaching content.And realizes the good interactive function.The simulation method of this multimedia courseware can be used as a reference for the development of other marine teaching courses and provide an effective learning tool for navigation teaching in the future.
【学位授予单位】：大连海事大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U664.33

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