波浪中船舶諧搖問題的研究

[摘要] 隨著航海事業(yè)的發(fā)展，船舶在大風(fēng)浪中的安全問題已經(jīng)成為大家關(guān)注的重點(diǎn)。但由于大風(fēng)浪中船舶作業(yè)的特點(diǎn)，船舶事故還是時(shí)有發(fā)生，并對(duì)人身安全和國家財(cái)產(chǎn)造成了巨大的威脅。考察這些事故的原因，其中大部分是由于駕駛員對(duì)風(fēng)浪中船舶操縱的特點(diǎn)不了解造成的。為了避免這些風(fēng)險(xiǎn)，本文試圖從風(fēng)浪中船舶諧搖的角度上做一定的探索。本文首先對(duì)波浪中船舶諧搖運(yùn)動(dòng)的原理及諧搖運(yùn)動(dòng)的危害進(jìn)行了介紹；其次用假設(shè)法建立了大風(fēng)浪中船舶諧搖的數(shù)學(xué)模型；然后結(jié)合海浪情況和某船實(shí)際數(shù)據(jù)，運(yùn)用數(shù)據(jù)統(tǒng)計(jì)的方法構(gòu)建了船舶諧搖區(qū)模型圖，通過對(duì)得出模型圖的進(jìn)行進(jìn)一步的分析，得出了適用同類型的船舶的一般結(jié)論，并據(jù)此提出了預(yù)防船舶橫搖諧搖的措施；最后本文還從縱搖諧搖的角度探究了海上允許速度的問題。
  
[關(guān)鍵詞]  風(fēng)浪中航行  數(shù)據(jù)分析  諧搖區(qū)模型圖  海上允許航速  
The research on ship's synchronous rolling in rough sea

【Abstract】: With the development of navigation, ship's safety problem in rough sea has become the important thing which pepole are facoused on. Due to the complexity and viriation of marine  conditions accidents of this kind sometimes occurs, which has posed the huge theat to the personal safety and the state property. Inspecting these accidents, a lot of these accidents are started by navigators not knowing the ship's maneuver rule in big waves. To avoid this risk, this article attempted to make the further exploration from the angel of ship's synchronous rolling movement in rough sea. First this article introduced the theory and hazard of the ship's synchronous rolling movement, besides, through tentative method, establishes the mathematic model of ship's synchronous rolling movement. Then combine with the wave's characteristic and one ship' data using data statistical and analyse methods to establish one ship's synchronous rolling picture model, through analysis of the picture model, we get the general conclusions that could application in ship with the same characteristics. Base on the picture model, we get the method which prevention ship's synchronous rolling.  At last, this article also explores the ship's permit speed at sea from the angle of synchronous pitching.

【Key words】:  navigation in big wave.  data analyse  synchronous rolling picture  permit speed at sea
 
目  錄

引  言 1
第一章 諧搖產(chǎn)生的基礎(chǔ)理論 2
1.1 諧搖產(chǎn)生的原理 2
1.2橫搖諧搖產(chǎn)生的條件 2
1.2.1最大波面角與船舶諧搖時(shí)的橫搖擺幅 3
1.2.2船舶橫搖諧搖發(fā)生的條件 3
1.3諧搖的危害 5
第二章 實(shí)船橫搖諧搖的分析 6
2．1橫搖諧搖運(yùn)動(dòng)的方程 6
2.1.1諧搖與船舶固有橫搖周期 6
2.1.2 橫搖諧搖與波浪遭遇周期 6
2.1.3 橫搖諧搖運(yùn)動(dòng)方程的建立 7
2．2計(jì)算實(shí)例與分析 8
2.2.1實(shí)船資料 8
2.2.2實(shí)船數(shù)據(jù)統(tǒng)計(jì) 8
2.2.3定性分析 11
2．3船舶在風(fēng)浪中減小諧搖的措施 12
第三章 縱搖諧搖與海上安全航速 13
3．1縱搖諧搖產(chǎn)生的條件 13
3．2縱搖諧搖運(yùn)動(dòng)的分析 14
3.2.1縱搖公式的推導(dǎo) 14
3.2.2實(shí)船數(shù)據(jù)統(tǒng)計(jì) 14
3.2.3定性分析 15
3.2.4海上危險(xiǎn)航速的計(jì)算 16
結(jié)論 17
致謝語 18
參考文獻(xiàn) 19