橫流風(fēng)機(jī)喘振現(xiàn)象的試驗(yàn)研究-資料下載頁(yè)
【導(dǎo)讀】本研究在風(fēng)機(jī)試驗(yàn)臺(tái)上對(duì)7種工況,7種轉(zhuǎn)速下的不同壓。提供了參考依據(jù)。排氣體沿風(fēng)機(jī)寬度方向分布均勻。由于其結(jié)構(gòu)簡(jiǎn)單、體積小、盡管其葉輪周向是對(duì)。在葉輪圓周一邊的內(nèi)側(cè)存在一個(gè)能夠控制整個(gè)。移動(dòng),正是此偏心渦的存在引起貫流。喘振現(xiàn)象的出現(xiàn)給試驗(yàn)帶來(lái)很大的麻煩。機(jī)單機(jī)吸氣試驗(yàn)為例,在大量試驗(yàn)的基礎(chǔ)上記錄了喘振現(xiàn)象,并探討了工況、轉(zhuǎn)速對(duì)喘振現(xiàn)象的影響。驗(yàn)具有通用性,根據(jù)試驗(yàn)方案,改變風(fēng)機(jī)的數(shù)目或者前后位置,可進(jìn)行多種類型試驗(yàn)。本試驗(yàn)均在此試驗(yàn)臺(tái)完成,橫流風(fēng)機(jī)單機(jī)吸。通過(guò)變頻器由調(diào)速電機(jī)調(diào)節(jié)。試驗(yàn),阻力層為前介紹的7種擋板。這是因?yàn)橥L(fēng)口面積較小,阻力層阻力較大,管道內(nèi)流。偏心渦的作用也不明顯。橫流風(fēng)機(jī)正常工作時(shí),噪聲相對(duì)較小。出尖銳的轟轟聲,聲音相對(duì)較大;當(dāng)橫流風(fēng)機(jī)發(fā)生喘振現(xiàn)象時(shí),動(dòng)力小車傳動(dòng)皮。帶明顯抖動(dòng)厲害,整個(gè)試驗(yàn)裝置皆有明顯振動(dòng)現(xiàn)象;化,在這種情況下給試驗(yàn)人員讀數(shù)帶來(lái)很大困難。從表2~3中可以看出:
【正文】 oFlapPhenomenonofCross flowFan…………(16)YUZhi Peng,ZHOUXue Jian,SHIQing Xiang (Vehicleamp。MotivePowerEngineeringCollege,HenanUniversityofScienceamp。Technology,Luoyang471003,China)Abstrac:tUnderthecertainworkcondition,thecross 14 paperexperimentsonthestageto7kindsofworkconditioninthebreezemachine,and7kindsofdifferentpressure,windvelocity,an flowfantobreatheheavilytoflapphenomenonisrecordedindetai.lTheeffectofworkconditionandrotatespeedonthebreathesheamalmovementofthecrossc :Cross flowfan。Workcondition。Rotatespeed。BreathingheavilytoflapphenomenonCLCnumber:TH44 Documentcode:AArticleID:1672 6871(2020)06 0016 04Applicationof1553BBustoMeasurementandControlPlatform………………………………(20)XIAOJun Ya,LIUYue Min,SHIJing Zhuo (ElectronicInformationEngineeringCollege,HenanUniversityofScienceamp。Technology,Luoyang471003,China)Abstrac:tThispapermakesaprehensiveanalysisaboutthesystemstructure,dsystemstructureofthemeasurementandcontrolplatformofthehemodulefordatabusmunicationinterfaceisalsopresented. 15 mportantroleinanairborneandaspacebornesimulationmeasur:1553Bbus。Measurementandcontrolplatform。AvionicsdatabusCLCnumber:TP336 Documentcode:AArticleID:1672 6871(2020)06 0020 04 ? TrafficandTransportation,EnergyandPowerEngineering? NumericalSmiulationonIce makingandHeatTransferforLiquid liquidCirculatingFluidizedBed ……………………………………………………………………………………………………(24) 112 LIANGKun Feng,WANGZhi Yuan,YUANZhu Lin (amp。PowerEngineeringCollege,HenanUniversityofScienceamp。Technology,Luoyang471003,China。amp。Environment,SoutheastUniversity,Nanjing210096,China)Abstrac:tLiquid liquidcirculatingfluidizedbed,whichisanovelmethodofdynamiciceforming,wasstudiedbyusingdirectcontactheattransferbetweentwoimmiscibleliquidsofwaterdropletsandthecoolantforice 16 百度搜索 “就愛(ài)閱讀 ”,專業(yè)資料 ,生活學(xué)習(xí) ,盡在就愛(ài)閱讀 網(wǎng),您的在線圖書館
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