本文選題：超大型減搖鰭　切入點(diǎn)：波浪　出處：《浙江大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：減搖鰭已經(jīng)在海洋船舶上得到廣泛的應(yīng)用,其可以減小船舶的橫搖運(yùn)動(dòng),改善船舶的適航性、安全性以及工作環(huán)境。我國(guó)減搖鰭技術(shù)在近四十年中發(fā)展非常迅速,現(xiàn)在已經(jīng)可以自主生產(chǎn)研發(fā)各種規(guī)格以及類型的減搖鰭。本課題基于超大型減搖鰭項(xiàng)目,研制一臺(tái)雙電液比例泵控液壓機(jī)組,對(duì)液壓機(jī)組設(shè)計(jì)及調(diào)試過(guò)程中船舶減搖模型及負(fù)載模型、雙電液比例泵控制及減搖鰭控制、泵控系統(tǒng)節(jié)能特性以及項(xiàng)目調(diào)試過(guò)程中出現(xiàn)的泵吸空問(wèn)題進(jìn)行了研究。論文的主要研究?jī)?nèi)容如下：第一章,首先對(duì)國(guó)內(nèi)外減搖鰭的研究現(xiàn)狀及發(fā)展趨勢(shì)進(jìn)行了介紹,接著介紹了國(guó)內(nèi)外閥控系統(tǒng)及泵控系統(tǒng)的研究現(xiàn)狀,最后對(duì)課題的研究意義及研究?jī)?nèi)容進(jìn)行了闡述。第二章,對(duì)海上隨機(jī)長(zhǎng)峰波浪進(jìn)行了建模,引入了波浪能量譜密度的概念�；谒⒌碾S機(jī)波浪模型,分析了波傾角與有義波高、浪向角的關(guān)系。根據(jù)船舶在海上的受力,建立了船舶的橫搖模型以及減搖模型。第三章,對(duì)超大型減搖鰭液壓隨動(dòng)伺服系統(tǒng)進(jìn)行了數(shù)學(xué)建模,同時(shí)建立了減搖鰭聯(lián)合仿真模型。液壓隨動(dòng)伺服系統(tǒng)是超大型減搖鰭的動(dòng)力源,其性能的好壞決定了船舶減搖效果的優(yōu)劣。文中對(duì)液壓系統(tǒng)進(jìn)行了詳細(xì)的建模,分別對(duì)比例閥、比例泵以及雙電液比例泵控系統(tǒng)進(jìn)行了建模。最后建立了超大型減搖鰭系統(tǒng)的聯(lián)合仿真模型,對(duì)系統(tǒng)進(jìn)行仿真,在系統(tǒng)設(shè)計(jì)的過(guò)程中起到輔助設(shè)計(jì)的作用。第四章,對(duì)液壓系統(tǒng)中雙泵控制問(wèn)題以及減搖鰭控制問(wèn)題展開(kāi)研究。首先對(duì)雙泵控制系統(tǒng)的問(wèn)題進(jìn)行分析,驗(yàn)證雙泵控制器的必要性。系統(tǒng)中所設(shè)計(jì)的雙泵協(xié)調(diào)控制器提高了系統(tǒng)的開(kāi)環(huán)增益,增加了系統(tǒng)的響應(yīng)以及系統(tǒng)的抗外負(fù)載干擾能力。最后超大型減搖鰭液壓隨動(dòng)伺服系統(tǒng)的非線性以及時(shí)變性給減搖鰭的控制帶來(lái)困難,由于采用傳統(tǒng)的PID控制算法不能得到理想的控制效果,本文中設(shè)計(jì)了自適應(yīng)Fuzzy-PID控制算法。第五章,對(duì)超大型減搖鰭液壓系統(tǒng)的節(jié)能特性以及調(diào)試過(guò)程中出現(xiàn)變量泵吸空問(wèn)題進(jìn)行了研究。分析了幾種超大型減搖鰭液壓控制系統(tǒng)的方案,對(duì)比系統(tǒng)本身的優(yōu)缺點(diǎn)以及節(jié)能特性。最后對(duì)本項(xiàng)目調(diào)試過(guò)程中遇到的泵吸空問(wèn)題進(jìn)行了深入的分析,得到泵進(jìn)出口液壓鎖是導(dǎo)致泵吸空的原因。第六章,對(duì)以上章節(jié)的研究?jī)?nèi)容進(jìn)行總結(jié),并對(duì)下一步的研究?jī)?nèi)容做出展望。
[Abstract]:Fin stabilizer has been widely used in marine ships, which can reduce ship rolling motion, improve ship airworthiness, safety and working environment. Now we have been able to produce and develop fin stabilizers of various specifications and types. Based on the super large fin stabilizer project, we have developed a dual electro-hydraulic proportional pump control hydraulic press unit. The anti-rolling model and load model of ship in the process of design and debugging of hydraulic press group, the control of double electro-hydraulic proportional pump and fin stabilizer, The energy saving characteristics of pump control system and the problems of pump suction in the process of project commissioning are studied. The main contents of this paper are as follows: in chapter 1, the research status and development trend of fin stabilizer at home and abroad are introduced. Then the research status of valve control system and pump control system at home and abroad is introduced. In this paper, the concept of wave energy spectral density is introduced. Based on the stochastic wave model, the relationship between wave inclination angle and wave height and wave direction angle is analyzed. The rolling model and anti-rolling model of ship are established. Chapter 3, the mathematical model of the hydraulic servo system of super large fin stabilizer is established. At the same time, the joint simulation model of fin stabilizer is established. The hydraulic servo system is the power source of the super large fin stabilizer, and the performance of the servo system determines the anti-rolling effect of the ship. The model of proportional pump and double electro-hydraulic proportional pump control system is established. Finally, the joint simulation model of super large fin stabilizer system is established. The simulation of the system plays an auxiliary role in the process of system design. Chapter 4th, The control problem of double pump and fin stabilizer in hydraulic system is studied. Verify the necessity of dual pump controller. The dual pump coordination controller designed in the system improves the open loop gain of the system. The response of the system and the ability of the system to resist the external load interference are increased. Finally, the nonlinearity of the super large fin stabilizer hydraulic servo system makes it difficult to control the fin stabilizer in time. Because the traditional PID control algorithm can not get the ideal control effect, the adaptive Fuzzy-PID control algorithm is designed in this paper. Chapter 5th, In this paper, the energy saving characteristics of super large fin stabilizer hydraulic system and the problem of variable pump suction during debugging are studied, and several schemes of hydraulic control system for super large fin stabilizer are analyzed. The advantages and disadvantages of the system and its energy-saving characteristics are compared. Finally, the problems of pump suction encountered in the debugging process of this project are analyzed in depth, and the reasons of pump suction are obtained by hydraulic lock of pump inlet and outlet. Chapter 6th, The research content of the above chapters is summarized, and the future research content is prospected.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U664.72

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