本文選題：電動(dòng)靜液作動(dòng)器 + 轉(zhuǎn)速排量復(fù)合調(diào)節(jié)��； 參考：《哈爾濱工業(yè)大學(xué)》2014年碩士論文

【摘要】：電動(dòng)靜液伺服技術(shù)是伺服電機(jī)與容積式液壓技術(shù)相結(jié)合的產(chǎn)物，是近二十多年來發(fā)展起來一項(xiàng)機(jī)電液一體化新技術(shù)，它既具有液壓系統(tǒng)的功率密度大、潤(rùn)滑性好等特性，又具有電拖動(dòng)系統(tǒng)接線方便、控制靈活等優(yōu)點(diǎn)，所以受到世界各國液壓學(xué)術(shù)界和產(chǎn)業(yè)界的高度重視，已經(jīng)成為21世紀(jì)液壓節(jié)能技術(shù)研究的重要方向。 適逢航空飛行器功率電傳技術(shù)（PBW）的發(fā)展趨勢(shì)，用于飛機(jī)舵面控制裝置的電動(dòng)靜液作動(dòng)器成為該技術(shù)的一大研究熱點(diǎn)。美國的幾種最新型的戰(zhàn)斗機(jī)已經(jīng)配備了電動(dòng)靜液作動(dòng)器，但現(xiàn)有的電動(dòng)靜液作動(dòng)器基本都采用定量泵，已有學(xué)者指出，若采用變量泵構(gòu)成轉(zhuǎn)速排量復(fù)合調(diào)節(jié)，系統(tǒng)的動(dòng)態(tài)特性和效率都有望進(jìn)一步提高。本課題就是在火箭舵機(jī)這一全新的應(yīng)用領(lǐng)域探究轉(zhuǎn)速排量復(fù)合調(diào)節(jié)電動(dòng)靜液作動(dòng)器的設(shè)計(jì)方法及性能。 本文首先基于設(shè)計(jì)指標(biāo)對(duì)火箭舵機(jī)進(jìn)行運(yùn)動(dòng)學(xué)和動(dòng)力學(xué)分析，基于分析結(jié)果和所給技術(shù)參數(shù)完成元件選型和作動(dòng)器結(jié)構(gòu)設(shè)計(jì)，并對(duì)所設(shè)計(jì)作動(dòng)器進(jìn)行了模態(tài)有限元分析；再從元件到分系統(tǒng)到整體建立了系統(tǒng)的數(shù)學(xué)模型，，為進(jìn)一步進(jìn)行系統(tǒng)的控制算法設(shè)計(jì)和模態(tài)分析奠定了基礎(chǔ)。 本系統(tǒng)有兩個(gè)控制元件——變量泵與伺服電機(jī)，且它們的輸出量——排量與轉(zhuǎn)速——是相乘的關(guān)系，這樣，系統(tǒng)實(shí)際上是本質(zhì)非線性的系統(tǒng)，如果利用非線性控制理論進(jìn)行反饋線性化，再進(jìn)行極點(diǎn)配置或最優(yōu)控制，系統(tǒng)的參數(shù)魯棒性會(huì)較差，經(jīng)過分析系統(tǒng)工況，將液壓變量泵與伺服電機(jī)用不同的反饋量進(jìn)行控制，且利用模糊控制器指定不同的控制目標(biāo)，實(shí)現(xiàn)了系統(tǒng)的解耦控制，仿真與實(shí)驗(yàn)結(jié)果表明轉(zhuǎn)速排量復(fù)合調(diào)節(jié)比單獨(dú)調(diào)節(jié)一個(gè)變量的系統(tǒng)動(dòng)態(tài)性能更為優(yōu)良，一般工況下的能量效率也進(jìn)一步提高，且由于電動(dòng)靜液系統(tǒng)本身便于集成，作動(dòng)器模態(tài)指標(biāo)也滿足要求，從而證明了轉(zhuǎn)速排量復(fù)合調(diào)節(jié)的優(yōu)異性，也表明了本文設(shè)計(jì)方法的合理性和有效性。
[Abstract]:The electric static hydraulic servo technology is the product of the combination of the servo motor and the volumetric hydraulic technology. It is a new technology of mechanical and electrical integration developed in the last more than 20 years. It not only has the characteristics of high power density and good lubricity of the hydraulic system, but also has the advantages of electric drag system connection and flexible control, so it is subject to all the countries in the world. Hydraulic academia and industry attach great importance to it. It has become an important direction of hydraulic energy saving technology research in twenty-first Century.
As the development trend of power transmission technology (PBW) of aircraft, electric Hydrostatic Actuator Used in aircraft rudder control device has become a hot topic in this technology. Some of the latest types of fighter aircraft in the United States have been equipped with electric hydrostatic actuators, but the existing electrostatic and hydrostatic actuators are basically using quantitative pumps, some scholars have pointed out The dynamic characteristics and efficiency of the system are expected to be further improved if the variable pump is used to form a rotational speed displacement compound adjustment. This topic is to explore the design method and performance of an electric static hydraulic actuator with a rotational speed displacement compound adjustment in the new application field of rocket rudder.
In this paper, based on the design index, the kinematic and dynamic analysis of the rocket rudder is carried out. Based on the analysis results and the technical parameters, the component selection and the actuator structure are designed, and the modal finite element analysis is carried out for the designed actuator. The design of the control algorithm and modal analysis of the system lay the foundation.
The system has two control elements - variable pump and servo motor, and their output - displacement and speed - is the relationship of multiplication. In this way, the system is essentially nonlinear system. If the nonlinear control theory is used for feedback linearization and then pole placement or optimal control, the parameter robustness of the system will be After analyzing the operating conditions of the system, the hydraulic variable pump and the servo motor are controlled with different feedback quantities, and the fuzzy controller is used to specify different control targets. The decoupling control of the system is realized. The simulation and experimental results show that the dynamic performance of the speed displacement compound adjustment is better than that of a single variable. The energy efficiency under the like condition is further improved, and as the electric static fluid system itself is easy to integrate, the actuator modal index also meets the requirements, which proves the excellence of the speed displacement compound adjustment, and shows the rationality and effectiveness of the design method of this paper.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TH137

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