本文選題：軸向柱塞泵 + CFD��； 參考：《合肥工業(yè)大學》2013年碩士論文

【摘要】：隨著液壓行業(yè)的迅速發(fā)展,各國都意識到液壓技術(shù)在工業(yè)發(fā)展中的重要性,并且加大對相關(guān)研發(fā)的投資和支持。軸向柱塞泵是液壓系統(tǒng)中最關(guān)鍵的配件之一,它主要功能是將電動機輸入的機械能轉(zhuǎn)化為流體介質(zhì)的壓力能,然后輸出到液壓系統(tǒng)中,為液壓油缸等執(zhí)行元件提供強大的動力。軸向柱塞泵性能的好壞直接影響液壓系統(tǒng)的工作效率,因此對軸向柱塞泵配流特性的探究、噪聲產(chǎn)生的機理和控制措施以及配流盤結(jié)構(gòu)的優(yōu)化設(shè)計是現(xiàn)階段學科研究的熱點。 本文針對公司的斜盤式軸向柱塞泵配流特性,利用流體分析軟件FLUENT進行仿真分析,得到配流過程中的壓力分布、速度分布以及流體密度的變化云圖。首先,建立軸向柱塞泵的數(shù)學模型�？紤]在高速、高壓的情況下,流體的密度和粘性對分析結(jié)果產(chǎn)生很大的影響,因此聯(lián)立流體流動的質(zhì)量守恒方程、動量守恒方程、能量守恒方程、流體的狀態(tài)方程和粘性方程,建立配流過程的數(shù)學理論模型。其次,建立軸向柱塞泵的解析模型。分析軸向柱塞泵配流過程中流體的進口、出口、阻尼槽和柱塞腔等關(guān)鍵位置的流體流動狀態(tài),因此建立三維高雷諾數(shù)K-ε紊流模型。利用動網(wǎng)格技術(shù)和滑移網(wǎng)格技術(shù)建立軸向柱塞泵配流過程的瞬態(tài)計算模型。第三,對軸向柱塞泵的配流特性進行分析。利用仿真分析的數(shù)據(jù),擬合出阻尼槽吸油窗口和排油窗口的阻尼系數(shù),為阻尼系數(shù)的選取提供了理論依據(jù)。根據(jù)仿真分析得到的壓力分布和速度分布云圖,深入分析配流盤的配流特性。最后,對配流盤結(jié)構(gòu)優(yōu)化研究。針對阻尼槽、阻尼孔和孔槽結(jié)合形式的阻尼結(jié)構(gòu),分別進行模擬計算,得出最優(yōu)的阻尼結(jié)構(gòu)—孔槽結(jié)合的形式。
[Abstract]:With the rapid development of hydraulic industry, all countries realize the importance of hydraulic technology in industrial development, and increase investment and support in related research and development. Axial piston pump is one of the most important parts in hydraulic system. Its main function is to convert the mechanical energy input from motor into the pressure energy of fluid medium, and then output it to hydraulic system to provide powerful power for hydraulic cylinder and other actuators. The performance of axial piston pump directly affects the working efficiency of hydraulic system. Therefore, the research on the characteristics of axial piston pump flow distribution, the mechanism of noise generation and control measures, and the optimization design of the structure of the distribution disc are the hot topics in the field of study at the present stage. In this paper, according to the distribution characteristics of oblique disc axial piston pump, the fluid analysis software FLUENT is used to simulate and analyze the pressure distribution, velocity distribution and fluid density. Firstly, the mathematical model of axial piston pump is established. Considering the high speed and high pressure, the density and viscosity of the fluid have a great influence on the analysis results, so the mass conservation equation, momentum conservation equation, energy conservation equation, fluid state equation and viscous equation of simultaneous fluid flow. The mathematical model of the flow distribution process is established. Secondly, the analytical model of axial piston pump is established. In this paper, the fluid flow state at the key positions, such as inlet, outlet, damping tank and plunger cavity, in the process of axial piston pump distribution is analyzed. Therefore, a three-dimensional K- 蔚 turbulent model with high Reynolds number is established. The transient calculation model of flow distribution process of axial piston pump is established by using dynamic grid technology and sliding grid technology. Thirdly, the distribution characteristics of axial piston pump are analyzed. Using the data of simulation analysis, the damping coefficients of damping trough oil absorption window and oil drain window are fitted, which provides a theoretical basis for the selection of damping coefficient. According to the cloud diagram of pressure distribution and velocity distribution obtained by simulation analysis, the flow distribution characteristics of the distribution disc are analyzed in depth. Finally, the structure optimization of the distribution disc is studied. For the damping structure with damping slot, damping hole and hole slot, the optimal damping structure combined with hole and slot is obtained by simulation and calculation respectively.
【學位授予單位】：合肥工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TH322

【參考文獻】

相關(guān)期刊論文 前10條

1 那成烈;恒功率軸向柱塞泵抗沖型配流盤最佳設(shè)計參數(shù)的確定[J];甘肅工業(yè)大學學報;1986年03期

2 那成烈;軸向柱塞泵配流盤減振孔計算問題探討[J];甘肅工業(yè)大學學報;1987年01期

3 那成烈;從A4V看現(xiàn)代軸向柱塞泵抗噪聲型配流盤的發(fā)展趨勢[J];甘肅工業(yè)大學學報;1988年03期

4 許賢良,趙連春,楊奇順;軸向柱塞泵流量脈動的理論研究[J];淮南礦業(yè)學院學報;1993年03期

5 馬六成;;斜盤型軸向柱塞泵降低噪聲的理論分析與試驗研究[J];機床與液壓;1987年03期

6 邱澤麟;陳兆能;;軸向柱塞泵配流盤阻尼結(jié)構(gòu)降噪特性的理論分析與實驗研究[J];機床與液壓;1989年05期

7 趙大慶;;軸向柱塞泵配流狀況的研究現(xiàn)狀與發(fā)展[J];機床與液壓;1990年05期

8 李中復(fù);軸向柱塞泵壓力噪聲與實驗研究[J];機床與液壓;2003年01期

9 聞德生,潘景f,呂世君,潘雷;軸向柱塞泵配油窗口面積對轉(zhuǎn)速和噪聲的影響[J];機床與液壓;2003年05期

10 劉春節(jié),許賢良;軸向柱塞泵實際流量的仿真分析[J];機床與液壓;1999年03期

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