本文選題：深海 + 流量控制特性　； 參考：《西南交通大學(xué)》2011年碩士論文

【摘要】：隨著陸地資源的匱乏和海洋探測技術(shù)的發(fā)展,目前,人類已經(jīng)發(fā)現(xiàn)的海洋資源足夠人類使用很長一段時(shí)間,但目前深海機(jī)械的發(fā)展還相對(duì)落后,主要原因在于深海環(huán)境要求深海機(jī)械具備抗高壓、低故障率、耐低溫和耐腐蝕的特性。液壓源作為深海機(jī)械中重要的動(dòng)力源設(shè)備,其性能的好壞將決定機(jī)械的工作性能,而流量作為液壓源的重要輸出量之一,將直接決定工作裝置(如液壓缸、液壓馬達(dá))的運(yùn)動(dòng)速度等特性,因此,需要研究變量泵元件參數(shù)、系統(tǒng)其它參數(shù)和深海環(huán)境對(duì)液壓系統(tǒng)的流量輸出特性的影響。本論文的研究分以下幾部分： (1)介紹液壓油的密度、粘度等屬性,并結(jié)合以往學(xué)界的研究成果,得出本論文適用的密度、粘度、有效體積彈性模量等計(jì)算公式； (2)結(jié)合物理定律(牛頓第二定律、動(dòng)量守恒等),建立深海動(dòng)力源仿真模型,并通過修改(電液比例閥閥芯質(zhì)量、控制柱塞質(zhì)量、PID控制器中Kp等)參數(shù),分析研究階躍輸入信號(hào)下系統(tǒng)流量特性,以作為未來開發(fā)更為先進(jìn)的深海液壓源系統(tǒng)的參考； (3)深海環(huán)境下,系統(tǒng)的觀察并不直觀,因此,本文開發(fā)了一款能適用于深海環(huán)境的監(jiān)測系統(tǒng),該系統(tǒng)以Labview為軟體,應(yīng)用PCI8622采集卡為采集前端,采用基于高級(jí)語言的模塊化設(shè)計(jì)簡化了程序。此監(jiān)測與分析程序既可以用于信號(hào)的監(jiān)測與采集,同時(shí),也可完成流量-壓力曲線分析和幅頻、相頻特性分析； (4)在863項(xiàng)目的經(jīng)費(fèi)支持下,設(shè)計(jì)了深海液壓動(dòng)力源系統(tǒng),并采用陸地模擬試驗(yàn)方式測試該系統(tǒng)。本文將闡述試驗(yàn)的試驗(yàn)方法、試驗(yàn)條件、試驗(yàn)設(shè)備和試驗(yàn)結(jié)論,通過高壓模擬試驗(yàn),研究分析了深海環(huán)境和流量輸入電壓對(duì)系統(tǒng)輸出流量特性的影響,為深�？刂破骷白兞勘瞄_發(fā)提供了參考。
[Abstract]:With the scarcity of land resources and the development of marine exploration technology, human beings have found enough marine resources for a long period of time, but the development of deep-sea machinery is relatively backward. The main reason is that deep-sea environment requires deep-sea machinery to have the characteristics of high pressure resistance, low failure rate, low temperature resistance and corrosion resistance. As an important power source equipment in deep-sea machinery, the performance of hydraulic source will determine the working performance of machinery. As one of the important output quantity of hydraulic source, flow rate will directly determine the working device (such as hydraulic cylinder, for example, hydraulic cylinder). Therefore, it is necessary to study the influence of variable pump component parameters, other system parameters and deep-sea environment on the flow output characteristics of hydraulic system. The research of this thesis is divided into the following parts: 1) introduce the properties of hydraulic oil, such as density, viscosity and so on, and combine with the research results of previous academic circles, get the calculation formula of density, viscosity, effective volume elastic modulus of this paper; In combination with physical law (Newton's second law, momentum conservation etc.), the simulation model of deep-sea power source is established, and the parameters (mass of valve core of electro-hydraulic proportional valve, control of plunger mass in pid controller, etc.) are modified. The flow characteristics of the system under step input signal are analyzed and studied, which can be used as a reference for developing more advanced deep-sea hydraulic source system in the future. In the deep-sea environment, the observation of the system is not intuitionistic. Therefore, this paper develops a monitoring system suitable for the deep-sea environment. The system takes Labview as the software and uses the PCI8622 acquisition card as the acquisition front end. The modular design based on high-level language simplifies the program. The program can be used not only for signal monitoring and acquisition, but also for the analysis of flow-pressure curves and amplitude-frequency and phase-frequency characteristics. 4) with the support of 863 project, the deep sea hydraulic power source system is designed, and the system is tested by land simulation test. In this paper, the test methods, test conditions, test equipment and test conclusions are described. The effects of deep-sea environment and flow input voltage on the output flow characteristics of the system are studied and analyzed by high-voltage simulation test. It provides a reference for the development of deep-sea controller and variable pump.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類號(hào)】：TH38

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本文編號(hào)：1865561