挖掘機液壓系統(tǒng)節(jié)能控制的分析研究

1、蘭州理工大學(xué)碩士學(xué)位論文挖掘機液壓系統(tǒng)節(jié)能控制的分析研究姓名：劉世亮申請學(xué)位級別：碩士專業(yè)：機械電子工程指導(dǎo)教師：郜立煥20090427蘭州理_1：大學(xué)碩士學(xué)位論文AbstractHydraulicexcaVatorasaclassoffast，highlyefficientconstructiOnmachineryhasbeenincreasinglyrecognizedItisakindofconstructionequiPment

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3、machineperformanceThispaperanalysisandcOmparison0fthetraditiOnalexcaVatorslewinghydraulicsystemand10ad—sensitiVeslewinghydraulicsystemefficiencythroughtheenergy—saVing0ftheSlewinghydraulicsystemofhydraulicexcaVator，andop

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5、torslewinghydraulicsystemasthefocus，UseAMESimsoftwaretoestablishthesimplifymodel0fthetraditionalexcaVatorslewinghydrauIicsystemandhydraulicloadsensitiVeslewingsystem，F(xiàn)ocusontheestablishmenttheloadsensitiVeValVeandpressur

6、eregulatingValVemodelofthelOadsensitiVepump，SimulationOfthehydraulicsystemofthebasicdynamiccharacte“sticcurVe，AnalysisandC0mparisOnOfthedifferencebetweenthetraditionalexcaVatorslewinghydraulicsystemandlOad—sensitiVehydra

7、ulicrotarysystemefnciencyenergywasteSimulationanalysisshowedthattheload—sensitiVehydraulicrotaryexcaVatorsystemis15％higherinefficiencythanthetraditionalhydraulicsystem，Outputshaftspeedofthesystemisstability，Smallfluctuat

8、ionswithLoadchanges，PumpoutputpressureaboVeacertainValuethanthepressureofload，whichaVoidexcessiVepressureloss1thasamoreeloquenttestimonytOtheexcaVatorintheapplication0ftheloadsensitiVeslewinghydraulicsystemmorestability，

9、energysaVing，thebenefitsOfreliablethanthetfaditiOnalslewinghydraulicsystemfromSimulationanalysisThispaperals0analysethefueltankpresslosingandefficiencyf6rtheuse0fthecharacteristics0fhydraulicexcavatorsCometoaresultthatth

10、eexcaVatorworkingdeVicehydrauliccylindersfbrtherodusedoilint0thecaVity，caVityrOdlessconnecttOOil—freelesspressurelOssthananotherwayconnectionwhentheexcaVatorworkingdeVicefortheresistiveforceloadAMESimanalysisthroughsimul