本文選題：徑向型MHCPE + 錐形配流閥�。� 參考：《青島大學(xué)》2012年碩士論文

【摘要】：機(jī)械液壓約束活塞發(fā)動(dòng)機(jī)(Mechanical Hydraulic Confined Piston Engine,簡(jiǎn)稱(chēng)MHCPE)是一種將傳統(tǒng)的活塞式內(nèi)燃機(jī)和柱塞泵的結(jié)構(gòu)原理和技術(shù)特點(diǎn)融合一體的新型動(dòng)力裝置。對(duì)六缸徑向型MHCPE錐形配流閥工作過(guò)程進(jìn)行了仿真研究,并對(duì)錐閥的結(jié)構(gòu)進(jìn)行了優(yōu)化設(shè)計(jì)。 根據(jù)液壓錐閥的動(dòng)力特性,綜合考慮液壓油的可壓縮性以及泵閥運(yùn)動(dòng)魏氏效應(yīng)(Westphal)對(duì)液缸內(nèi)液壓油連續(xù)流影響,建立了錐形配流閥動(dòng)力特性數(shù)學(xué)模型。依據(jù)研制的36114ZG4B型六缸徑向MHCPE樣機(jī)參數(shù),對(duì)其錐形配流閥的工作過(guò)程進(jìn)行了仿真分析。結(jié)果表明：在額定轉(zhuǎn)速內(nèi),錐形配流閥的位移、速度、加速度運(yùn)動(dòng)性能較為穩(wěn)定,但是還存在隨轉(zhuǎn)速變化產(chǎn)生的液壓油壓力尖角及錐閥開(kāi)啟和關(guān)閉滯后角問(wèn)題,系統(tǒng)受滯后角的影響,容積效率低。 以整機(jī)容積效率為目標(biāo)函數(shù),以動(dòng)力缸工作循環(huán)的輸出流量以及錐閥設(shè)計(jì)的邊界條件為約束條件,以錐閥的結(jié)構(gòu)參數(shù)為設(shè)計(jì)變量,建立了優(yōu)化模型,并利用iSIGHT優(yōu)化軟件進(jìn)行優(yōu)化了設(shè)計(jì)。優(yōu)化結(jié)果表明優(yōu)化后錐形配流閥的工作性能得到了改善,運(yùn)行更加的平穩(wěn)合理,而且MHCPE整機(jī)系統(tǒng)的容積效率得到了提高。
[Abstract]:Mechanical Hydraulic Confined Piston Engineering (MHCPEE) is a new type of power device which integrates the structure principle and technical characteristics of the traditional piston internal combustion engine and piston pump.The working process of the six cylinder radial MHCPE conical valve is simulated and the structure of the conical valve is optimized.According to the dynamic characteristics of hydraulic cone valve, considering the compressibility of hydraulic oil and the effect of pump valve motion on the continuous flow of hydraulic oil in cylinder, a mathematical model of dynamic characteristics of conical distribution valve is established.According to the parameters of the 36114ZG4B six cylinder radial MHCPE prototype, the working process of the conical flow distribution valve is simulated and analyzed.The results show that the displacement, velocity and acceleration of the conical valve are stable within the rated speed, but there are still the problems of the pressure sharp angle of hydraulic oil and the lag angle of opening and closing of the conical valve.The system is affected by the lag angle and the volume efficiency is low.Taking the volumetric efficiency of the whole machine as the objective function, taking the output flow of the working cycle of the power cylinder and the boundary conditions of the design of the cone valve as the constraint conditions, taking the structural parameters of the cone valve as the design variables, the optimization model is established.ISIGHT optimization software is used to optimize the design.The optimization results show that the performance of the conical valve is improved, the operation is more stable and reasonable, and the volume efficiency of the whole MHCPE system is improved.
【學(xué)位授予單位】：青島大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類(lèi)號(hào)】：TH134

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 詹金鎖;閥式泵吸油閥優(yōu)化設(shè)計(jì)[J];福州大學(xué)學(xué)報(bào)(自然科學(xué)版);1991年03期

2 肖俊建,周兆忠,周建強(qiáng);往復(fù)泵自動(dòng)球閥動(dòng)力學(xué)模型及計(jì)算機(jī)仿真[J];化工機(jī)械;2005年03期

3 薛金華,張年梅;活塞壓縮機(jī)舌簧閥的優(yōu)化設(shè)計(jì)[J];華東化工學(xué)院學(xué)報(bào);1993年02期

4 曹秉剛;郭卯應(yīng);中野和夫;史維祥;;錐閥流場(chǎng)的邊界元法解析[J];機(jī)床與液壓;1991年02期

5 高殿榮,王益群;液壓錐閥流場(chǎng)的有限元法解析[J];機(jī)床與液壓;2000年02期

6 楊國(guó)來(lái),司國(guó)雷,姬孝斌,盧X;用ANSYS對(duì)水壓錐閥流場(chǎng)的可視化研究[J];機(jī)床與液壓;2005年10期

7 楊國(guó)來(lái);葉清;林男;;純水液壓錐閥閥口流場(chǎng)氣穴的CFD研究[J];機(jī)床與液壓;2007年01期

8 宋天池;沈燕良;胡良謀;李永林;;基于結(jié)構(gòu)參數(shù)優(yōu)化的錐閥式單向閥消振研究[J];機(jī)床與液壓;2009年01期

9 鄭淑娟;權(quán)龍;;基于CFD的液壓錐閥閥芯啟閉過(guò)程的液動(dòng)力分析[J];機(jī)電產(chǎn)品開(kāi)發(fā)與創(chuàng)新;2007年02期

10 雷紅霞;權(quán)龍;;液壓錐閥內(nèi)部流場(chǎng)的三維仿真計(jì)算及可視化分析[J];機(jī)械科學(xué)與技術(shù);2006年04期

相關(guān)碩士學(xué)位論文 前1條

1 鄭淑娟;閥芯運(yùn)動(dòng)過(guò)程液壓錐閥內(nèi)部流場(chǎng)的CFD計(jì)算[D];太原理工大學(xué);2005年

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