【作者】 马伟佳；

【导师】 庞永杰；

【作者基本信息】 哈尔滨工程大学 ， 船舶与海洋结构物设计制造， 2010， 硕士

【摘要】 一直以来,水面高性能船舶的水动力性能研究都是大家关注的热点问题,而作为高性能船舶的一种,对滑行艇的相关研究也一直都在进行。滑行艇高速滑行时水动力性能的计算研究是目前船舶水动力计算领域中的一个难点。本论文旨在一定航速下滑行艇在波浪中的纵向运动性能进行初步的研究,为寻求滑行艇的耐波性精准预报方法奠定理论基础。本文采用二维切片理论对滑行艇在规则波中的纵向运动性能进行数值计算。采用基于势流理论的源汇分布法计算滑行艇各横剖面的水动力系数,用二维切片理论预报艇体纵向运动性能,将基于势流理论得到的水动力系数代入船舶纵向运动方程求解得到纵向运动响应结果。介绍滑行艇在水池试验情况,并采用谱分析方法对滑行挺的耐波性能进行分析,对试验数据进行处理,得到纵向运动响应曲线。本文将数值计算的结果与水池模型试验结果进行对比分析,检验文中所采用的方法在滑行艇耐波性能计算研究中的可行性,为滑行艇的耐波性优化提供技术参考,并为该问题后续的深入研究奠定基础。更多还原

【Abstract】 The research of the hydrodynamics of the high performance marine vehicle is the hotspot for quite a long time. As a kind of the high performance marine vehicle, the research of the planing hull has been paid a lot of attention by the researchers.The hydrodynamics computation of the planing hull in the state of planing with a high speed is a hard problem in the field of hydrodynamics calculation of marine vehicle. This dissertation aims at the elementary research of the prediction of longitudinal motion performance of a planing hull which is planing forward with a constant high speed in waves and also search and basis for the accurate prediction method for seakeeping theory.The 2D strip method is adopted to numerically calculate the longitudinal motion performance of planing hull in regular waves of the paper.The hydrodynamic coefficients of every sections of the planing hull are calculated by source/dipole mixed-distribution method which is based on potential theory. The 2D strip method is used to predict the longitudinal motion performance of the planing hull. Put the hydrodynamic coefficients which is calculated by the potential theory into the ships’longitudinal motion equations ,and then we can get the results of the planing hull’s longitudinal motionThe paper introduces experiment of the planing hull in the water tank and the spectral analysis method is used to analysis the seakeeping performance, then, deals with the experimental data for getting the curve of the corresponding of longitudinal motion.In this dissertation, the numerical results is compared with the experiments results from water tank, the feasibility of the numerical method which is used in the dissertation is verified and tested. and the direction for the depth research in the future is lied the foundation.更多还原