本文選題：船舶操縱性 + 水動(dòng)力導(dǎo)數(shù)�。� 參考：《江蘇科技大學(xué)》2016年碩士論文

【摘要】：船舶操縱性是直接關(guān)系船舶航行安全及船舶營運(yùn)經(jīng)濟(jì)性的重要指標(biāo),提高船舶操縱性是船舶設(shè)計(jì)研發(fā)的重要內(nèi)容。傳統(tǒng)船舶動(dòng)力主要采用常規(guī)螺旋槳與舵配合,船員往往根據(jù)自身經(jīng)驗(yàn)對(duì)船舶進(jìn)行操縱,船員經(jīng)驗(yàn)不足或經(jīng)驗(yàn)適用性低,會(huì)帶來安全隱患和經(jīng)濟(jì)損失。目前,船舶操縱性研究對(duì)象多為常規(guī)舵槳推進(jìn)類型船舶,針對(duì)側(cè)推器、全回轉(zhuǎn)推進(jìn)器船舶的操縱性研究成果較少,因此,針對(duì)配備此類推進(jìn)器的船舶進(jìn)行操縱運(yùn)動(dòng)仿真研究十分有意義。本文以配備首側(cè)推器及全回轉(zhuǎn)導(dǎo)管螺旋槳的某型多功能水下作業(yè)支持船為研究對(duì)象,從提高該型多功能水下作業(yè)支持船操縱性的角度出發(fā),展開一系列的研究,主要研究內(nèi)容如下:(1)基于CFD的船舶操縱運(yùn)動(dòng)水動(dòng)力導(dǎo)數(shù)求解。首先以DTMB5415船型為對(duì)象進(jìn)行數(shù)值仿真計(jì)算,將仿真計(jì)算結(jié)果與船模試驗(yàn)數(shù)據(jù)對(duì)比驗(yàn)證網(wǎng)格劃分及邊界條件設(shè)定的合理性,其次對(duì)仿真計(jì)算得到的離散點(diǎn)利用傅里葉級(jí)數(shù)擬合后求解水動(dòng)力導(dǎo)數(shù),驗(yàn)證數(shù)據(jù)處理的正確性,最后采用同一仿真算法及參數(shù)設(shè)置求解目標(biāo)船型的水動(dòng)力導(dǎo)數(shù)。(2)船舶操縱運(yùn)動(dòng)仿真平臺(tái)的搭建。以Matlab/Simulink為平臺(tái),利用第二章介紹的經(jīng)驗(yàn)公式搭建船舶平面運(yùn)動(dòng)仿真平臺(tái)。搭建平臺(tái)過程中針對(duì)全回轉(zhuǎn)導(dǎo)管螺旋槳的推力和力矩處理,考慮偏轉(zhuǎn)角度對(duì)縱向力、橫向力以及回轉(zhuǎn)力矩的影響。(3)船舶操縱運(yùn)動(dòng)仿真。首先對(duì)(操縱方式與本文目標(biāo)船型一致的)某型港作拖輪進(jìn)行Z形試驗(yàn)與回轉(zhuǎn)運(yùn)動(dòng)仿真,以驗(yàn)證搭建的船舶操縱運(yùn)動(dòng)平臺(tái)的可靠性。針對(duì)本文目標(biāo)船型,通過改變平臺(tái)的輸入?yún)?shù),實(shí)現(xiàn)Z形試驗(yàn)及回轉(zhuǎn)運(yùn)動(dòng)仿真。其中針對(duì)Z形試驗(yàn)仿真進(jìn)行5/5??、10/10??、15/15??、20/20??四種不同標(biāo)準(zhǔn)值的仿真;對(duì)回轉(zhuǎn)運(yùn)動(dòng)仿真探究了螺旋槳偏轉(zhuǎn)角度、轉(zhuǎn)速、環(huán)境載荷等參數(shù)對(duì)定�；剞D(zhuǎn)直徑的影響。本文最后探究了側(cè)推器對(duì)船舶回轉(zhuǎn)運(yùn)動(dòng)的輔助作用。本文建立的船-機(jī)-槳模型可以為多功能水下作業(yè)支持船的操縱性仿真研究提供借鑒,對(duì)船舶駕駛?cè)藛T在實(shí)際操船過程中提供一定參考價(jià)值,也為模擬船舶在風(fēng)、流中的操縱性研究提供一定的理論基礎(chǔ)。
[Abstract]:Ship maneuverability is an important index which is directly related to the safety of ship navigation and the economy of ship operation. To improve ship maneuverability is an important part of ship design and development. Traditional ship power is mainly used with conventional propeller and rudder. The crew often manipulate the ship according to its own experience. The crew's experience is insufficient or the experience is low. At present, most of the research objects of ship maneuverability are conventional propeller propeller type ships, and there are few research results on the maneuverability of all rotary thrusters. Therefore, it is of great significance to study the maneuverability simulation of ships equipped with such propellers. In order to improve the maneuverability of the multi-function underwater operation support ship, a series of studies are carried out from the angle of improving the maneuverability of the multi-functional underwater operation support ship. The main research contents are as follows: (1) the solution of the hydrodynamic conductance of the ship maneuvering based on CFD. First, the numerical imitation is carried out with the DTMB5415 ship as the object. The simulation results are compared with the ship model test data to verify the rationality of the grid division and the setting of the boundary conditions. Secondly, the discrete points obtained by the simulation calculation are fitted with Fourier series to solve the hydrodynamic derivatives, and the correctness of the data processing is verified. Finally, the same simulation algorithm and parameters are used to solve the target ship shape. Hydrodynamic derivative. (2) build the simulation platform of ship maneuvering motion. Based on the Matlab/Simulink platform, the ship plane motion simulation platform is set up by the empirical formula introduced in second chapters. The thrust and moment of the propeller for the full gyration pipe are set up in the platform process, and the longitudinal force, lateral force, and rotary moment are taken into consideration. Influence. (3) simulation of ship maneuvering motion. First, the Z shape test and rotary motion simulation of a type of tugboat (which is in line with the target ship type of this article) is carried out to verify the reliability of the ship maneuvering platform. The Z shape test and the rotary motion simulation are realized by changing the input parameters of the ship's target ship. The simulation of Z shape test is carried out for four different standard values of 5/5?? 10/10?? 15/15??? 20/20?? the influence of the parameters of propeller deflection angle, speed, environment load on the constant gyration diameter is explored. Finally, the auxiliary effect of the side thruster on the rotational motion of the ship is explored. The ship engine paddle model established in this paper is established in this paper. The model can provide reference for the simulation of the maneuverability of multi-functional underwater vehicle support ship, and provide some reference value for the ship drivers in the actual process of ship operation, and also provide a theoretical basis for the simulation of the maneuverability of ships in the wind and flow.
【學(xué)位授予單位】：江蘇科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：U661.33
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本文編號(hào)：2070533