本文選題：游艇 + 數(shù)值水池　； 參考：《集美大學》2015年碩士論文

【摘要】：航行阻力與姿態(tài)是高性能船舶水動力性能研究的基礎,直接反映了船艇的快速性、穩(wěn)性、耐波性的優(yōu)劣,針對阻力與姿態(tài)的優(yōu)化始終是高速艇優(yōu)化設計的重要內(nèi)容。經(jīng)過多年研究與應用經(jīng)驗的積累,發(fā)現(xiàn)單純依靠型線優(yōu)化,難以滿足船艇在復雜海況和大航速范圍內(nèi)始終保持最佳的水動力性能,而附體可以針對性的調(diào)整船艇在航行中的受力情況,是使高速艇性能進一步得到優(yōu)化的有效手段,壓浪板便是一種常用于高速艇附體。從艇型特點和航速范圍判斷,多數(shù)高速游艇均屬于處于過渡航行狀態(tài)的滑行艇,即處在介于典型高速排水型艇和滑行艇之間的灰色地帶,針對于該型艇的阻力性能及航行姿態(tài)的研究較少,壓浪板在游艇上的應用缺乏理論和試驗數(shù)據(jù)的指導。針對以上問題,本文將進行以下3個方面的研究：(1)比較并選擇游艇阻力與姿態(tài)計算方法,對壓浪板游艇進行數(shù)值水池仿真計算。將薩維斯基法和ЦАГИ方法等基于半理論半經(jīng)驗公式的適用于高速艇的阻力與姿態(tài)計算方法用于該艇,并通過與水池試驗比較,分析誤差來源,確定其是否可直接應用于游艇的計算。以STAR CCM+為軟件平臺,建立數(shù)值拖曳水池,計算游艇直航過程中升沉、縱傾運動航行阻力。在此基礎上,對比游艇裸艇體和附裝壓浪板艇體的靜水拖曳試驗,分析安裝壓浪板對艇體繞流的影響,及游艇阻力與姿態(tài)的變化,研究壓浪板對游艇產(chǎn)生影響的作用機理。(2)壓浪板結構尺寸對游艇的影響分析。進行帶壓浪板的游艇航行的數(shù)值模擬,并建立帶壓浪板的游艇靜水直航的受力模型,研究壓浪板長度、安裝角度與壓浪板安裝效果對游艇阻力和姿態(tài)的影響關系,通過與數(shù)值模擬結果比對,對理論推導結果進行修正和完善,獲得壓浪板長度、安裝角度變化對壓浪板安裝效果影響的曲線,確定游艇航行中對應不同航速的壓浪板安裝角度的適當范圍。(3)壓浪板對游艇垂蕩和縱搖的影響。采用數(shù)值造波技術,制造高階規(guī)則波,對游艇的迎浪航行進行模擬,并通過對裸艇體和帶壓浪板艇體在波浪中航行受力與運動的對比,研究安裝壓浪板對游艇垂蕩和縱搖的周期、幅度等方面的影響。
[Abstract]:Navigation resistance and attitude are the basis of the research on the hydrodynamic performance of high performance ships, which directly reflect the merits and demerits of the ship's rapidity, stability and wave resistance. The optimization of the resistance and attitude is always the important content of the optimum design of the high speed craft. After many years of research and application experience, it is found that it is difficult to satisfy the optimal hydrodynamic performance of the ship in the range of complex sea conditions and large speed by simply relying on the optimization of the profile. The appendage can adjust the force of the boat in navigation, and it is an effective means to optimize the performance of the high-speed boat. The wave plate is often used in the attached body of the high-speed boat. Judging from the characteristics of the boat and the range of speed, most high speed yachts belong to the skidding boat in the transitional navigation state, that is, in the grey area between the typical high-speed drainage boat and the skidding boat. There is little research on the resistance performance and navigation attitude of this type of boat, and the application of the wave plate in the yacht lacks the guidance of theoretical and experimental data. Aiming at the above problems, this paper will compare and select the calculation methods of the resistance and attitude of the yacht from the following three aspects: 1) and carry out the numerical pool simulation calculation of the wave-plate yacht. The resistance and attitude calculation methods based on semi-theoretical and semi-empirical formulas, such as Savitsky method and Sawesky method, are applied to the calculation of the resistance and attitude of the high speed boat. The error sources are analyzed by comparing with the tank test. Determine whether it can be directly applied to the calculation of yachts. Based on STAR CCM software platform, a numerical towing tank is established to calculate the sailing resistance during the direct sailing of the yacht. On the basis of this, the static water towing tests of the naked hull and the boat body with the pressure wave plate are compared, and the influence of the installation of the pressure plate on the flow around the hull and the change of the resistance and attitude of the yacht are analyzed. The influence mechanism of wave plate on yacht is studied. (2) the influence of structure size of wave plate on yacht is analyzed. In this paper, the numerical simulation of the sailing of a yacht with a wave plate is carried out, and the force model of the straight sailing of a yacht with a wave plate is established. The relationship between the length of the pressure plate, the angle of installation and the effect of the installation effect on the resistance and attitude of the yacht is studied. By comparing with the numerical simulation results, the theoretical derivation results are modified and perfected, and the curves of the influence of the length and the installation angle on the installation effect of the wave pressing plate are obtained. Determine the appropriate range of the installation angle of the wave-plate corresponding to different speed in sailing.) the influence of the sagging and pitching of the yacht by the wave-plate. The numerical wave-making technique is used to make high-order regular waves to simulate the sailing of yachts, and the comparison between the force and motion of the naked hull and the hull with pressure wave plate in the wave is carried out. The influence of installing wave plate on the period and amplitude of hovering and pitching of the yacht is studied.
【學位授予單位】：集美大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U674.91;U661.7

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