FPSO软管绞车液压系统恒功率特性研究

发布时间：2018-01-17 03:07

本文关键词：FPSO软管绞车液压系统恒功率特性研究　出处：《大连海事大学》2012年硕士论文　论文类型：学位论文

【摘要】：FPSO尾输油过程中软管绞车需要完成收放软管的这一动作过程,为了有效利用发动机输出功率及提高绞车工作性能,其液压系统广泛采用恒功率控制变量机构。而变量机构的控制特性是关系整个液压系统品质的重要标准,为了对恒功率控制进行优化,就需要分析变量机构的静动态特性及部件参数对其特性的影响。通过分析软管绞车的工作原理及工况特点,建立合理的系统数学模型,并利用仿真软件AMESim对其进行动态仿真,可以直观地研究恒功率变量机构的特性。该方法可以在液压元件及系统的开发设计中对设计者具有一定的指导意义,缩短研发周期,并且能够节省一定的人力、物力和财力。本文以工程机械中软管绞车的液压系统为研究对象,侧重分析系统中变量泵的恒功率控制机构。第一部分,介绍了尾输油系统的工作原理、分析了软管绞车的工作原理以及恒功率控制方式的特性；第二部分,在对恒功率控制机构进行合理线性化之后,建立了系统的数学模型,重点分析和建立的是变量泵的恒功率控制机构的数学模型；第三部分,也是本文的重点所在,利用仿真软件AMESim搭建了系统的仿真框图,设置好相应的参数后,对其仿真结果进行分析,得出系统的响应特性,改变变量机构的主要部件参数,然后再进行仿真计算,分析主要部件参数对动态响应特性的影响。最后提出优化恒功率控制变量机构的方案,改变弹簧参数及增加弹簧的数量至三根甚至四根,以期达到更加完美的恒功率控制。本文通过以上几个方面的分析,得出了恒功率控制变量机构主要部件参数对恒功率特性的影响规律,研究了变量机构设计的改进理念,对液压系统恒功率控制的开发和设计起到一定的参考作用。
[Abstract]:In order to effectively utilize the engine output power and improve the working performance of the winch, the hose winch needs to complete the process of retracting and releasing the hose in the process of FPSO tail oil transportation. The constant power control variable mechanism is widely used in its hydraulic system, and the control characteristics of the variable mechanism is an important standard related to the quality of the whole hydraulic system, in order to optimize the constant power control. It is necessary to analyze the static and dynamic characteristics of the variable mechanism and the influence of component parameters on its characteristics. By analyzing the working principle and working condition characteristics of the hose winch, a reasonable mathematical model of the system is established, and the dynamic simulation is carried out by using the simulation software AMESim. This method can be used in the development and design of hydraulic components and systems, which has a certain guiding significance for designers, shortens the research and development cycle, and can save a certain amount of manpower. Material and financial resources In this paper, the hydraulic system of the hose winch in construction machinery is taken as the research object, and the constant power control mechanism of the variable pump in the system is emphatically analyzed. The first part introduces the working principle of the tail oil transportation system. The principle of hose winch and the characteristics of constant power control mode are analyzed. In the second part, after the constant power control mechanism is linearized reasonably, the mathematical model of the system is established, and the mathematical model of the constant power control mechanism of the variable pump is analyzed and built. The third part is also the focus of this paper, using the simulation software AMESim to build the system simulation block diagram, after setting up the corresponding parameters, the simulation results are analyzed, and the response characteristics of the system are obtained. The main component parameters of the variable mechanism are changed and then simulated. The influence of the main component parameters on the dynamic response characteristics is analyzed. Finally, the scheme of optimizing the variable mechanism with constant power control is put forward. Change the spring parameters and increase the number of springs to three or even four in order to achieve a more perfect constant power control. Through the analysis of the above several aspects, the influence law of the main component parameters of the constant power control variable mechanism on the constant power characteristic is obtained, and the improved concept of the variable mechanism design is studied. It plays a certain reference role in the development and design of constant power control of hydraulic system.
【学位授予单位】：大连海事大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH137.51

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