【摘要】：液壓動(dòng)力單元是液壓系統(tǒng)的基礎(chǔ)和關(guān)鍵，即“心臟”，無(wú)論是工業(yè)機(jī)械，還是工程機(jī)械，以及國(guó)防尖端產(chǎn)品和其他涉及到液壓的行業(yè)，對(duì)其都具有較高的要求。蘭州理工大學(xué)以高精度、高效率、輕量化、模式化、靜音節(jié)能等方面為基準(zhǔn)點(diǎn)，結(jié)合相關(guān)基礎(chǔ)性學(xué)科知識(shí)，通過(guò)理論分析、數(shù)據(jù)計(jì)算、數(shù)值模擬、流場(chǎng)仿真等，設(shè)計(jì)出的液壓電機(jī)葉片泵動(dòng)力單元具有結(jié)構(gòu)緊湊、體積小、噪音小無(wú)外泄漏污染低、效率較高等優(yōu)點(diǎn)。 如今，轉(zhuǎn)子系統(tǒng)向著高轉(zhuǎn)速、細(xì)長(zhǎng)和高效率的方向發(fā)展。由于電機(jī)泵轉(zhuǎn)子系統(tǒng)材質(zhì)的不均勻，以及制造、加工及裝配存在的誤差等，導(dǎo)致質(zhì)量偏心，加上工作中所產(chǎn)生的熱變形、磨損等產(chǎn)生不均勻的離心力，使轉(zhuǎn)子系統(tǒng)高速旋轉(zhuǎn)時(shí)產(chǎn)生不平衡振動(dòng)。此時(shí)，轉(zhuǎn)子動(dòng)力學(xué)問(wèn)題是制約電機(jī)轉(zhuǎn)子系統(tǒng)研制的一個(gè)主要因素。由于液壓電機(jī)葉片泵的轉(zhuǎn)子系統(tǒng)具有獨(dú)特的創(chuàng)新設(shè)計(jì)和技術(shù)要求，其動(dòng)力學(xué)分析也就具有一定的意義。 因此，本文作者運(yùn)用轉(zhuǎn)子系統(tǒng)動(dòng)力學(xué)相關(guān)理論，結(jié)合電機(jī)葉片泵轉(zhuǎn)子系統(tǒng)特點(diǎn)，對(duì)電機(jī)泵轉(zhuǎn)子進(jìn)行了相應(yīng)的理論分析；對(duì)電機(jī)葉片泵轉(zhuǎn)子建模，分析四種不同支撐方式下對(duì)轉(zhuǎn)子系統(tǒng)動(dòng)特性的影響，利用ANSYS分析軟件分別對(duì)電機(jī)泵轉(zhuǎn)子進(jìn)行動(dòng)力學(xué)分析計(jì)算；對(duì)電機(jī)泵轉(zhuǎn)子系統(tǒng)的不平衡響應(yīng)進(jìn)行仿真分析，針對(duì)定轉(zhuǎn)速穩(wěn)態(tài)響應(yīng)時(shí)的動(dòng)不平衡響應(yīng)特性進(jìn)行分析；對(duì)電機(jī)泵轉(zhuǎn)子系統(tǒng)進(jìn)行了分析計(jì)算和優(yōu)化；對(duì)電機(jī)泵樣機(jī)轉(zhuǎn)子進(jìn)行動(dòng)平衡實(shí)驗(yàn)校核，，通過(guò)實(shí)驗(yàn)對(duì)轉(zhuǎn)速測(cè)試實(shí)驗(yàn)數(shù)據(jù)與流量數(shù)據(jù)進(jìn)行分析。 論文的主要內(nèi)容： 第1章，闡述本課題的研究背景；概述國(guó)內(nèi)外液壓電機(jī)泵的研究狀況及發(fā)展和蘭州理工大學(xué)對(duì)液壓電機(jī)葉片泵的研究現(xiàn)狀及取得的成果；陳述轉(zhuǎn)子系統(tǒng)動(dòng)力學(xué)研究概況；概括本論文的主要研究目的、內(nèi)容及意義。 第2章，運(yùn)用轉(zhuǎn)子系統(tǒng)動(dòng)力學(xué)相關(guān)理論，結(jié)合電機(jī)泵轉(zhuǎn)子系統(tǒng)特點(diǎn)，對(duì)電機(jī)泵轉(zhuǎn)子進(jìn)行了相應(yīng)的理論分析。 第3章，對(duì)電機(jī)葉片泵建模，分析四種不同支撐方式下對(duì)轉(zhuǎn)子系統(tǒng)動(dòng)特性的影響，利用ANSYS分析軟件對(duì)電機(jī)泵轉(zhuǎn)子進(jìn)行動(dòng)力學(xué)計(jì)算。 第4章，針對(duì)定轉(zhuǎn)速的穩(wěn)態(tài)響應(yīng)特性對(duì)轉(zhuǎn)子不平衡響應(yīng)進(jìn)行分析，進(jìn)行動(dòng)平衡校準(zhǔn)。 第5章，針對(duì)研制出的第二代電機(jī)葉片泵樣機(jī)建立了電機(jī)泵性能測(cè)試系統(tǒng)，對(duì)電機(jī)泵在不同壓力下進(jìn)行流量測(cè)試和轉(zhuǎn)速測(cè)試，獲得了樣機(jī)的輸出流量參數(shù)及轉(zhuǎn)子轉(zhuǎn)速。
[Abstract]:Hydraulic power unit is the basis and key of hydraulic system, that is, "heart", whether industrial machinery or construction machinery, as well as national defense cutting-edge products and other industries involving hydraulic pressure, all of them have higher requirements. Lanzhou University of Science and Technology regards high precision, high efficiency, lightweight, pattern, mute energy saving and so on as the reference point, combines the related basic discipline knowledge, through the theoretical analysis, the data computation, the numerical simulation, the flow field simulation and so on, The designed hydraulic motor vane pump power unit has compact structure, small volume and low noise. No leaks? Low pollution, high efficiency and other advantages. Nowadays, rotor system develops towards high speed, slender and high efficiency. Due to the uneven material of the motor pump rotor system and the errors existing in manufacturing, processing and assembling, the mass eccentricity is caused by the non-uniform centrifugal force caused by the thermal deformation and wear in the work. An unbalanced vibration occurs when the rotor system rotates at high speed. At this point, rotor dynamics is one of the main factors restricting the development of motor rotor system. Because the rotor system of hydraulic motor vane pump has unique innovative design and technical requirements, its dynamic analysis has certain significance. Therefore, the author applies the theory of rotor system dynamics, combined with the characteristics of rotor system of motor vane pump, carries on the corresponding theoretical analysis to the motor pump rotor. The rotor model of the motor vane pump is modeled, and the influence of four different supporting modes on the dynamic characteristics of the rotor system is analyzed. The dynamic analysis and calculation of the motor pump rotor are carried out by using the ANSYS analysis software. The unbalance response of the motor pump rotor system is simulated and analyzed, and the dynamic unbalance response characteristic of the motor pump rotor system under the steady state response of constant speed is analyzed, and the calculation and optimization of the motor pump rotor system are carried out. The rotor of motor pump prototype is checked by dynamic balance experiment, and the experimental data and flow data are analyzed. The main contents of this paper are as follows: in chapter 1, the research background of this subject is described, the research status and development of hydraulic motor pump at home and abroad and the research status and achievements of hydraulic motor vane pump in Lanzhou University of Technology are summarized. The main purpose, content and significance of this paper are summarized. In chapter 2, using the theory of rotor system dynamics and combining the characteristics of motor pump rotor system, the corresponding theoretical analysis of motor pump rotor is carried out. In chapter 3, the model of motor vane pump is built, and the influence of four different support modes on the dynamic characteristics of rotor system is analyzed. The dynamic calculation of motor pump rotor is carried out by using ANSYS software. In chapter 4, the rotor unbalance response is analyzed and calibrated. In chapter 5, the motor pump performance test system is established for the second generation motor vane pump prototype. The flow rate and speed of the motor pump are tested under different pressure, and the output flow parameters and rotor speed of the motor pump are obtained.
【學(xué)位授予單位】：蘭州理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類(lèi)號(hào)】：TH137.51

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本文編號(hào)：2374060