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1、中圖分類號(hào):密級(jí):碩士學(xué)位論文氣液增壓系統(tǒng)的動(dòng)態(tài)性能分析與優(yōu)化研究專業(yè):機(jī)械電子工程研究生:郭楠指導(dǎo)教師:齊元?jiǎng)俣栆晃迥耆翴摘要自20世紀(jì)60末至70年代初,隨著工業(yè)機(jī)械化和自動(dòng)化的發(fā)展,氣動(dòng)技術(shù)開(kāi)始廣泛應(yīng)用于生產(chǎn)、自動(dòng)化領(lǐng)域,形成現(xiàn)代氣動(dòng)技術(shù)。氣液增壓技術(shù)是氣動(dòng)技術(shù)的重要應(yīng)用之一,它以流體力學(xué)及氣動(dòng)、液壓技術(shù)原理為基礎(chǔ),綜合了氣壓傳動(dòng)、液壓傳動(dòng)的優(yōu)點(diǎn)研制而成,是現(xiàn)代工程中常用的驅(qū)動(dòng)方式。本文首先介紹了國(guó)內(nèi)外氣液增壓技術(shù)的發(fā)展和應(yīng)用狀況,并對(duì)氣液增壓系統(tǒng)的組成、原理及關(guān)鍵技術(shù)進(jìn)行了闡述。其次,為了改進(jìn)氣液增壓式模切實(shí)驗(yàn)臺(tái)的動(dòng)態(tài)性能,通過(guò)對(duì)氣動(dòng)增壓缸和電磁換向閥
2、進(jìn)行了數(shù)學(xué)建模,并采用建模分析軟件MatLab/Simulink進(jìn)行仿真計(jì)算,深入分析了氣隙長(zhǎng)度、驅(qū)動(dòng)電流大小、線圈匝數(shù)、氣源壓力等關(guān)鍵參數(shù)對(duì)電磁閥工作性能的影響;之后,又采用AMESim仿真分析軟件對(duì)氣液增壓缸進(jìn)行建模和分析,通過(guò)改變?cè)鰤焊椎母左w直徑、工作行程等參數(shù)得到了增壓缸的加速度、位移等變化曲線。再次,根據(jù)仿真分析的結(jié)果,對(duì)現(xiàn)有氣液增壓系統(tǒng)的關(guān)鍵部件提出了改進(jìn)方案。最后,針對(duì)改進(jìn)后模切實(shí)驗(yàn)臺(tái)的氣液增壓驅(qū)動(dòng)系統(tǒng),本文設(shè)計(jì)了一套實(shí)驗(yàn)方案,能夠測(cè)控增壓系統(tǒng)工作過(guò)程中的驅(qū)動(dòng)氣體流量、壓力及氣液增壓缸的工作性能變化等,經(jīng)實(shí)驗(yàn)測(cè)試,其結(jié)果證明了優(yōu)化方案的可行性。關(guān)鍵詞
3、:氣液增壓缸;電磁換向閥;仿真建模;Simulink;AMESim;IABSTRACTSincethelate1960stoearly1970softhe20thcentury,Pneumatictechnologystartstobewidelyusedintheproductionandautomationfieldwiththemechanizationandautomationofindustrialdevelopment,whichformsthemodernpneumatictechnology.Gas-liquidpressurizationtech
4、nologyisoneofimportantapplicationsofpneumaticstechnology,whichisbasedonthehydromechanics,pneumaticandhydro-dynamics,combinestheadvantageofpneumaticandhydraulictransmissiontodevelopsuccessfully,andisadrivenmodecommonlyusedinmodernengineering.Inthefirstplace,thispaperdescribesthedevelop
5、mentandapplicationofgas-liquidpressurizationtechnologyinthedomesticandoverseas,andelaboratesitscomposition,principleandkeytechnologies.Secondly,inordertoimprovethedynamicperformanceofpneumo-hydraulicpressurizeddiecuttingtestbenchdeveloped,establishingthemathematicalmodelofsolenoidvalv
6、eandgas-liquidpressurizationbooster,furthermoresimulatingandcalculatingthismodelbyusingthemodelingandanalysissoftwareMatLab/Simulink,andthendoingdepthanalysisoftheimpactofkeyparametersontheperformanceofthesolenoidvalve,suchasgaslength,drivecurrentsize,turnratio,airpressureandsoon.Afte
7、rthat,modelingandanalyzingbyusingtheAMESimsimulationsoftwarethengotthedisplacementandaccelerationchangecurvesoftheair-hydraulicboosterbychangingthecylinderdiameterandoperatingstroke.Oncemore,proposingtheimprovementprojectofexistinggas-liquidpressurizationsystemaccordingtothesimulation
8、resul