造波系统能量优化研究及其机构设计

发布时间：2018-03-14 09:33

本文选题：造波系统　切入点：能量优化　出处：《太原科技大学》2016年硕士论文　论文类型：学位论文

【摘要】：在海洋环境中,波浪对海洋工程建筑物、港口及船舶产生巨大冲击力,是造成海洋装备破坏的主要因素,因此展开波浪模拟研究对海洋装备可靠性的提高十分重要。造波系统是应用于试验水池中实现海洋波浪模拟的核心基础装备,通过水体扰动试验采集波浪冲击数据,进行相关分析,为开发海洋装备提供依据。本文在综合分析了国内外学者对波浪产生机理研究的基础上,指出现有由极限波陡理论和微幅波理论推导出的波高公式用在试验水池中具有一定的局限性。针对试验水池造波系统中能量优化的问题,通过分析试验水池中摇板造波原理和水质点的运动轨迹,利用流体力学中流量体积的变化,建立了试验水池中波高产生与摇板运动运动速度和角度之间的数学方程,并推导出波浪能量与波高之间的关系;在此基础上,根据摇板造波过程中能量的转化关系,分析了摇板不同起始偏角下产生波浪能量的变化。并搭建了造波系统,进行实验研究。对摇板不同起始偏角设计了相应的机械机构,验证建立的数学模型。通过对比,最终得到摇板式造波系统能量最优时摇板的起始摆角和摆角范围。通过对试验水池造波系统波浪产生方法和能量优化的研究,为海洋工程平台设计开发提供相关的理论指导。总结了本文的研究内容和成果,并对海洋装备的可靠性的评估提供了指导。
[Abstract]:In the marine environment, waves have a great impact on marine engineering buildings, ports and ships, which are the main factors that cause the destruction of marine equipment. Therefore, it is very important to improve the reliability of marine equipment to develop wave simulation research. Wave making system is the core equipment for ocean wave simulation in experimental pool. Wave shock data are collected by water body disturbance test. In order to provide the basis for the development of marine equipment, this paper makes a comprehensive analysis of the wave generation mechanism of domestic and foreign scholars. It is pointed out that the existing wave height formulas derived from the theory of limit wave steepness and the theory of micro-amplitude wave have some limitations in the experimental pool, aiming at the problem of energy optimization in the wave-making system of the experimental pool. By analyzing the wave-making principle of shaking plate and the moving track of water quality points in the test pool, the mathematical equations between wave height generation and the velocity and angle of motion of rocking plate in the test pool are established by using the change of flow volume in hydrodynamics. The relationship between wave energy and wave height is deduced, and based on the transformation of wave energy in wave making process, the variation of wave energy under different initial deflection angles is analyzed, and the wave-making system is built. Experimental study was carried out. The corresponding mechanical mechanism was designed for different initial deflection angles of rocking plate, and the established mathematical model was verified. Finally, the initial swinging angle and the range of swinging angle of the rocking plate are obtained when the energy of the wave-making system is optimal. The method of wave generation and the optimization of the energy of the wave-making system in the experimental tank are studied. This paper provides relevant theoretical guidance for the design and development of offshore engineering platform, summarizes the research contents and results of this paper, and provides guidance for the reliability evaluation of marine equipment.
【学位授予单位】：太原科技大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：P742;P731.2

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