本文選題：單體小水線面無人艇 + 總體設(shè)計　； 參考：《江蘇科技大學(xué)》2016年碩士論文

【摘要】：近年來各國大力發(fā)展無人艇技術(shù),針對部分敏感地區(qū)或危險水域,通�？紤]使用無人艇,且要求無人艇擁有較好的水動力性能,在軍用方面,也有一定的隱身要求。無人艇若完全潛入水中,其隱身性能將得到提高,但其通訊能力會受到較大影響。因此本文參考單體小水線面水翼復(fù)合高速船及相關(guān)船舶船型特點,設(shè)計了一種新型單體小水線面無人艇。該無人艇擁有較小的上體結(jié)構(gòu),且外形較為特殊,具備一定的隱身性能,且能保證其通訊能力。由于國內(nèi)尚無該型無人艇,論文不僅完成了無人艇的外形設(shè)計,也完成了內(nèi)部布置、機構(gòu)的設(shè)計等工作,同時也完成了無人艇水動力性能的模擬分析。以下為本文完成的具體工作:完成無人艇總體設(shè)計,包括無人艇艇形設(shè)計、主尺度的確定、艙室劃分、無人艇內(nèi)部構(gòu)件及機構(gòu)的設(shè)計與建模、無人艇浮態(tài)校核等。完成無人艇艇體兩側(cè)水翼水動力分析及尾舵的選型與設(shè)計。選用NACA00xx系列翼型,通過對比,選出最佳翼型NACA0010;通過計算無人艇浮態(tài)變化的浮力損失確定水翼轉(zhuǎn)角;通過公式計算水翼轉(zhuǎn)動后在設(shè)計航速下所受合力的合力點位置,確定水翼及翼軸安裝位置;最后通過DNV規(guī)范計算尾舵舵葉面積,并確定尾舵相關(guān)參數(shù)。通過國際通用船型Wigley船型阻力的模擬值與實驗值及計算值的對比,驗證了Finemarine模擬阻力方面的可行性;利用Finemarine,模擬無人艇在體航狀態(tài)和翼航狀態(tài)下1-10kn航速下的阻力,并分析不同航速阻力情況;通過后處理軟件得到無人艇在不同航速下的航行狀態(tài)及興波情況,模擬結(jié)果達到了設(shè)計的目的。最后根據(jù)阻力計算完成了螺旋槳設(shè)計及主機選型�；贔inemarine,對單體小水線面無人艇的耐波性進行了模擬分析。通過模擬一級、三級規(guī)則波和隨機不規(guī)則波,分析了無人艇在體航及翼航狀態(tài)下遭遇橫浪及迎浪時的水動力響應(yīng)。模擬結(jié)果表明,在低海況,無人艇水動力性能優(yōu)良。在高海況及不規(guī)則波下,水動力響應(yīng)較為劇烈,不適宜工作,但能夠保證自存。通過設(shè)計及模擬分析,本文設(shè)計的單體小水線面無人艇實現(xiàn)了設(shè)計的目的,但在耐波性能方面存在一些不足。這些問題可以在今后的設(shè)計工作中進一步解決和優(yōu)化。由于國內(nèi)外尚無單體小水線面船船型特征直接應(yīng)用到無人艇中的工程實例,本文完成了該無人艇總體設(shè)計及內(nèi)部部分裝置設(shè)計,并完成了相關(guān)性能分析工作,是一次積極有意義的嘗試,對今后的研究工作具有一定的參考價值。
[Abstract]:In recent years, many countries have developed the technology of unmanned craft. In view of some sensitive areas or dangerous waters, the use of unmanned craft is usually considered, and the unmanned craft is required to have better hydrodynamic performance. In military, there is also a certain requirement of stealth. The stealthy performance of the unmanned craft will be improved if it is completely submerged, but its communication capability will be greatly affected. In this paper, a new type of single waterline unmanned craft is designed with reference to the characteristics of single waterline hydrofoil composite high speed ship and related ship. The UAV has a small upper structure, a special shape, a certain stealth performance, and can guarantee its communication ability. Since there is no such type of unmanned craft in China, the paper not only completes the shape design of the unmanned craft, but also completes the design of the internal arrangement and mechanism, and also completes the simulation analysis of the hydrodynamic performance of the unmanned craft. The following are the specific works of this paper: complete the overall design of unmanned craft, including unmanned boat shape design, the determination of the main scale, compartment division, the design and modeling of the internal components and mechanisms of the unmanned craft, the floating verification of the unmanned boat, and so on. The hydrodynamic analysis of hydrofoil and the selection and design of tail rudder are completed. NACA00xx series airfoils are selected and the optimum airfoil NACA0010 is selected by comparison. The hydrofoil rotation angle is determined by calculating the buoyancy loss of the change in the floating state of the unmanned craft. The resultant force position of the resultant force after the hydrofoil rotates at the design speed is calculated by the formula. Finally, the area of the tail rudder blade is calculated by DNV code, and the relevant parameters of the tail rudder are determined. The feasibility of Finemarine simulation resistance is verified by comparing the simulated value with the experimental value and the calculated value, and the resistance of the unmanned ship under the 1-10kn speed is simulated by using Finemarine. Through the post-processing software, the navigation state and wave-making of the unmanned craft at different speeds are obtained, and the simulation results reach the purpose of the design. Finally, according to the calculation of resistance, the design of propeller and the selection of main engine are completed. Based on Finemarine, the wave resistance of single waterline unmanned craft is simulated and analyzed. The hydrodynamic responses of the unmanned craft to cross and facing waves are analyzed by simulating the first stage, three level regular waves and random irregular waves. The simulation results show that the hydrodynamic performance of unmanned craft is excellent in low sea conditions. Under high sea conditions and irregular waves, the hydrodynamic response is strong and unsuitable for work, but it can guarantee self-existence. Through the design and simulation analysis, the single waterline unmanned craft designed in this paper has achieved the purpose of design, but there are some shortcomings in the wave resistance performance. These problems can be further solved and optimized in the future design work. Because there is no engineering example that single waterline ship form features have been directly applied to unmanned craft at home and abroad, this paper has completed the overall design of the unmanned craft and the internal part of the device design, and has completed the related performance analysis work. It is a positive and meaningful attempt and has certain reference value for future research work.
【學(xué)位授予單位】：江蘇科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：U674.77
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本文編號：2064435