本文關(guān)鍵詞：海浪浪花與船行波建模繪制技術(shù)研究與實現(xiàn)　出處：《國防科學(xué)技術(shù)大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： Osg Ocean 船行波 海浪浪花 元胞自動機(jī)

【摘要】：在虛擬海洋場景中人們研究較多的是海面建模,它主要對海面的波動現(xiàn)象進(jìn)行模擬仿真,然而海洋場景中的一些特效現(xiàn)象如海浪浪花、船行波以及運動艦船周圍的浪花等對虛擬海洋場景的真實性有較大影響,因而對這些海洋場景特效現(xiàn)象的模擬仿真成為逼真的海洋場景模擬的重要研究內(nèi)容。本文針對已有海浪浪花和艦船軌跡模擬方法不足和問題,研究探討新的三維船行波和海浪浪花建模方法,并基于Osg Ocean海浪模擬開源平臺完成場景設(shè)計實現(xiàn)。論文的主要工作和研究成果如下:1、提出一種基于開爾文波的用于三維船行波建模與模擬方法。該方法以定性特征與船行波特征一致的開爾文波理論為基礎(chǔ),結(jié)合海面風(fēng)速、風(fēng)向和艦船航向等因素的影響,建立三維船行波模型,計算船行軌跡中位于波峰線上的軌跡點和波峰線間的軌跡點的坐標(biāo),實現(xiàn)不同船型和船速條件的自適應(yīng)三維船行波模擬。實驗結(jié)果表明,所提出的建模與模擬方法可較真實的表現(xiàn)艦船航行兩側(cè)所產(chǎn)生的船行波。2、基于元胞自動機(jī)理論和多粒子模型,本文提出一種艦船運動浪花特效模擬方法。該方法根據(jù)艦船運動與水體作用產(chǎn)生浪花的機(jī)理和特點,考慮了艦船速度對艦船不同位置點海浪浪花形態(tài)的影響,基于元胞自動機(jī)理論和多粒子模型對海浪浪花場景特效進(jìn)行建模和模擬。實驗結(jié)果表明,所提出的方法可自動生成較真實的運動艦船頭浪、側(cè)浪和艉浪浪花特效。3、在深入分析海浪模擬開源軟件平臺Osg Ocean的軟件模塊組成結(jié)構(gòu)和程序流程基礎(chǔ)上,基于Osg Ocean設(shè)計實現(xiàn)了三維船行波模擬軟件模塊和艦船運動浪花特效模擬軟件模塊,驗證了所提出的三維船行波模擬方法和海浪浪花特效模擬方法的正確性和有效性。
[Abstract]:In the virtual ocean scene more people study is surface modeling, simulation which fluctuation on the surface of the sea, but some of the effects of ocean scene phenomena such as wave waves, have great influence around the ship wave and the motion of ship waves and authenticity of virtual ocean scene simulation, and Simulation of these ocean scene the phenomenon has become an important research content of realistic simulation of ocean scene. According to the existing ocean waves and ship trajectory simulation method of deficiencies and problems, study new three-dimensional ship wave and wave wave modeling method, Osg and Ocean wave simulation design based on open source platform to complete the scene. The main work and research results are as follows: 1 Kelvin, put forward a kind of wave for three-dimensional ship wave modeling and simulation method based on this paper. By qualitative features and characteristics of the ship wave Kelvin wave theory, combined with the sea surface wind speed, wind direction and ship heading and other factors, the establishment of three-dimensional ship wave model, to calculate the coordinates of track points located on the crest line and the crest line between the trajectory of ship trajectory in different speed conditions, ship and adaptive three-dimensional ship wave simulation. The experimental results show that the the proposed modeling, and simulation method can be a real performance of ship ship wave.2 on both sides of the cellular automaton theory and multi particle model based on, this paper proposes a ship motion simulation method. The effects of spray method of generating mechanism and characteristics of spray according to the ship motion and water effect, considering the influence of ship the speed of ship waves waves from different positions of morphology, cellular automaton theory and multi particle model for modeling and Simulation of sea waves based on scene. Experimental results show that the The proposed method can automatically generate a real head moving ship wave, side wave and stern wave waves effects.3 simulation software module, open source software platform Osg Ocean in depth analysis of wave component based structure and program flow, Osg Ocean design and implementation of three-dimensional ship wave simulation software module and ship motion simulation software module based on the waves and verify the correctness and effectiveness of the proposed three-dimensional ship wave simulation method and the effects of spray simulation method.

【學(xué)位授予單位】：國防科學(xué)技術(shù)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：P731.2;TP391.9

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 王琪;鄧會亨;馬璐;;基于粒子系統(tǒng)的海洋環(huán)境仿真[J];計算機(jī)系統(tǒng)應(yīng)用;2013年02期

2 王銳;谷永山;韋穗;程鴻;;虛擬海洋場景的實時模擬研究與實現(xiàn)[J];計算機(jī)工程與設(shè)計;2012年02期

3 李四海;姜曉軼;張峰;;我國數(shù)字海洋建設(shè)進(jìn)展與展望[J];海洋開發(fā)與管理;2010年06期

4 趙欣;李鳳霞;戰(zhàn)守義;;基于粒子系統(tǒng)的艦船航跡仿真[J];計算機(jī)工程;2008年15期

5 李蘇軍;蔣杰;瞿師;吳玲達(dá);;基于粒子系統(tǒng)的船行波建模與繪制[J];艦船電子工程;2007年06期

6 王仲君;王能超;馮飛;田武峰;;元胞自動機(jī)的演化行為研究[J];計算機(jī)應(yīng)用研究;2007年08期

7 皮學(xué)賢;楊旭東;李思昆;宋君強(qiáng);;近岸水域的波浪與水面仿真[J];計算機(jī)學(xué)報;2007年02期

8 曹偉;元胞自動機(jī)與計算機(jī)模擬[J];丹東紡專學(xué)報;2005年02期

9 高天池,李月蓮;用二維方法模擬虛擬現(xiàn)實系統(tǒng)中的船行波[J];實驗室研究與探索;2003年05期

10 楊懷平,孫家廣;基于海浪譜的波浪模擬[J];系統(tǒng)仿真學(xué)報;2002年09期

，

本文編號：1433278