本文選題：水下液壓系統(tǒng)　切入點：深海閥控缸系統(tǒng)　出處：《東北大學》2011年碩士論文　論文類型：學位論文

【摘要】：海洋蘊藏著數(shù)倍于陸地的巨大資源,隨著國家對海洋探索及海底資源開發(fā)的深入,越來越多的海底裝備將會應用其中。由于液壓系統(tǒng)獨有的優(yōu)勢,使其大量應用于海底裝備中,提供動力支持。但目前水下液壓系統(tǒng)的應用主要集中在淺海,對于深海領域,尤其在水深2000m以下,還處于試驗探索階段。本課題對深海伺服閥控缸系統(tǒng)特性進行探索研究分析,從而獲得深海條件對液壓系統(tǒng)工作特性的影響因素及其造成系統(tǒng)特性變化的趨勢。 首先,本課題對水下液壓系統(tǒng)進行了全面的介紹,對其關鍵技術進行闡述。壓力補償器的運用在一定程度上解決了水下液壓系統(tǒng)在深海條件下的壓力補償和容積補償?shù)膯栴}。但高壓補償會使油液的特性發(fā)生變化,因此本課題接著對深海條件下油液特性的變化規(guī)律做了進一步的研究。其次,以水下機械手單關節(jié)液壓缸控制為基礎,對閥控缸液壓系統(tǒng)重要環(huán)節(jié)分別進行建模分析,從而得到高階電液伺服閥數(shù)學模型及整個水下伺服閥控缸系統(tǒng)數(shù)學模型。 然后,利用仿真軟件對電液伺服閥建立仿真模型,并以選用伺服閥的高階數(shù)學模型參數(shù)為基礎進行仿真分析,通過對比不同深度下伺服閥的仿真結(jié)果,確定深海條件油液特性變化對伺服閥特性的影響。最后,以某研究所水下機械手單關節(jié)液壓缸為基礎,設計水下閥控缸系統(tǒng),并計算出深海條件不同深度下系統(tǒng)相關仿真參數(shù)的變化。建立深海閥控缸系統(tǒng)仿真模型,對不同深度的動態(tài)仿真結(jié)果進行對比分析,得出深海條件下閥控缸系統(tǒng)工作特性的變化趨勢。
[Abstract]:The ocean contains enormous resources several times as much as land. With the development of ocean exploration and seabed resources, more and more submarine equipment will be applied. Because of the unique advantages of hydraulic system, it will be used in large quantities in submarine equipment. But at present, the application of underwater hydraulic system is mainly concentrated in shallow water, especially in the water depth below 2000m, it is still in the stage of experiment and exploration. This subject explores and analyzes the characteristics of deep-sea servo valve cylinder control system. The influence factors of deep-sea conditions on the working characteristics of hydraulic system and the tendency of system characteristics change are obtained. First of all, the subject of the underwater hydraulic system for a comprehensive introduction, The application of pressure compensator solves the problem of pressure compensation and volume compensation of underwater hydraulic system under deep-sea conditions to some extent, but high-pressure compensation will change the characteristics of oil. Therefore, this paper makes further research on the variation law of oil characteristics under deep-sea conditions. Secondly, based on the single joint hydraulic cylinder control of underwater manipulator, the important links of valve controlled cylinder hydraulic system are modeled and analyzed respectively. Thus, the mathematical model of high order electro-hydraulic servo valve and the mathematical model of the whole underwater servo valve control system are obtained. Then, the simulation model of the electro-hydraulic servo valve is established by using the simulation software, and the simulation analysis is carried out on the basis of selecting the parameters of the high-order mathematical model of the servo valve, and the simulation results of the servo valve at different depths are compared. Finally, based on the single joint hydraulic cylinder of underwater manipulator in a certain institute, an underwater valve control system is designed. The simulation model of deep-sea valve controlled cylinder system is established, and the dynamic simulation results of different depth are compared and analyzed. The changing trend of the working characteristics of the valve controlled cylinder system under the deep sea condition is obtained.
【學位授予單位】：東北大學
【學位級別】：碩士
【學位授予年份】：2011
【分類號】：TH137

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本文編號：1580761