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1、Sep.20122012年9月機(jī)床與液壓第40卷第l7期MACHINETOOL&HYDRAULICSVo1.40No.17DOI:10.3969/j.issn.1001—3881.2012.17.003激波器一管道液壓激振系統(tǒng)及控制規(guī)律研究魏秀業(yè),寇子明,張惠賢,陸春月,逯子榮(1.中北大學(xué)機(jī)械工程與自動化學(xué)院,山西太原030051;2.太原理工大學(xué)機(jī)械工程與自動化學(xué)院,山西太原030024;3.山西省礦山流體控制工程技術(shù)中心,山西太原030024)摘要:研究了液壓波動的機(jī)制,構(gòu)建了激波器一液壓管激振系統(tǒng)
2、,研究液壓管道振動的控制規(guī)律。通過變頻器變頻控制激波器的啟閉,使液壓管產(chǎn)生周期性的振動。建立由液壓泵站、激振液壓缸、連接管路、激波器驅(qū)動電機(jī)、激波器組成激振試驗(yàn)系統(tǒng),采集管道不同測點(diǎn)處的振動信號進(jìn)行分析,得出管道振動的規(guī)律。實(shí)驗(yàn)結(jié)果表明:在相同的激振頻率條件下,管路的激振頻率隨系統(tǒng)壓力的增大而減?。辉陬l率和壓力一定時(shí),管路上不同點(diǎn)處其振動的波形相同,幾乎不存在相位差,但不同點(diǎn)處振幅大小不一致,靠近液壓缸的管道振動比靠近激波器的管道振動劇烈一些。關(guān)鍵詞:液壓激振系統(tǒng);管道;液壓波動;激波器;控制規(guī)律中圖分類
3、號:TP271+.31文獻(xiàn)標(biāo)識碼:A文章編號:1001—3881(2012)l7—007—5StudyonHydraulicExcitingSystemConsistedofPipelineandWave-exciterandControllingRuleWEIXiuye,KOUZiming。ZHANGHuixian,LUChunyue。LUZirong,(1.SchoolofMechanicalEngineeringandAutomation,NorthUniversityofChina,Taiyuan
4、Shanxi030051,China;2.CollegeofMechanicalEngineering,TaiyuanUniversityofTechnology,TaiyuanShanxi030024,China;3.ShanxiProvinceMineFluidControlEngineeringResearchCenter,TaiyuanShanxi030024,China)Abstract:Hydraulicfluctuationmechanismwasstudied,thehydraulicex
5、citingsystemconsistedofwave—exciterandpipelinewasconstructed,andthecontrollingruleforvibrationofhydraulicpipelinewasstudied.Pipeperiodicalvibrationwasproducedbyfre—quency—changercontrollingopeningandclosingofwave—exciter.Hydraulicexcitingtestsystemconsist
6、edofhydraulicpowersource,excitingvibrationhydrauliccylinder,connectedpipeline,motorfordrivingwave·exciterandwave—exciterweresetup.Bycollec—tingandanalyzingthevibrationsignalsofpipelineondifferentmeasurementpoints,thepipelinevibrationlawwasobtained.Thetest
7、resultsshowthatthepipeexcitingfrequencyisreducedalongwithsystempressureincreasingonthesameconditionofexcitingfrequen-cy.Thevibrationwaveshapesonpipedifferentpointsarethesalneandalmosthavenophasedifference,butthevibrationamplitudesofdifferentmeasurementpoi
8、ntsarenotthesame,whichnearthehydrauliccylinderaremorestrenuousthanthatnearthewave-exciter.Keywords:Hydraulicexcitingsystem;Pipeline;Hydraulicfluctuation;Wave-exciter;Controllingrole經(jīng)過幾十年的發(fā)展,液壓振動技術(shù)取得了長足的力變化、振幅、速度、加速度