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ID:33959272
大小:8.91 MB
页数:96页
时间:2019-03-02
《山西中部引黄取水工程水力特性分析分析》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、万方数据太原理工大学硕士研究生学位论文forecastingmethodandRBFneuralnetworkpredictionmethod.(2)predictedresultisimprovedcomparedwithBPneuralnetwork,deviationreduced,convergencetimesignificantlyreducedaftercombiningtheBPneuralnetworkandRBFneuralnetwork.(2)thenetworkstructureinpredictionofpredictionprog
2、rambasedonMATLABplatformisamoresatisfactorynetworkstructurethatcanbetrainedbeforethepaperiscompleted.Duetosomeweightsoftheneuralnetworkarerandomparametersgivenbycomputer,whicharedifferentineachtraining,afterobtainingthesatisfactorypredictedresultswithsmalldeviation,theweightsofthen
3、etworkatthetimeissavedforcallinginlaterengineeringpractice.(3)inthisstudy,archedgatetypesectionisusedintheproject.Processdataofthewaterlevel,flow,velocity,clearanceratioinsidethenopressuretunnelchangewithtimeisanalyzedbyusingcharacteristiclinemethodtosolvecharacteristicequationandt
4、hecorrespondingprocesslineis’drawn.Correspondingrelationshipbetweenflowofthepumpwater-in‘poolandthenumberofsetsturnedonisdetermined.AbandonedwaterofprojectisreducedandconvenedintotunnelclearanceratioaccordingtoTunnelflowareatoensuretheclearanceinprocessofwatertransportationwithinth
5、erequiredsecurityscopeofstandard.CentralYellowRiverdiversionprojectisacomplexsystemproject.Calculationanalysisofopenchannelunsteadyflowincludesmanythings,suchasconnectionissuebetweenopenchannelwithdifferentsections,openandcloseissueofsluicegate,controlandschedulingissueoftheentires
6、ystem.V万方数据太原理工大学硕士研究生学位论文Furtherin—depthstudyisneeded.KEYWORDS:pump,fullcharacteristiccurveprediction,unsteadyflowinopenchanne,CentralYellowRiverDiversionProjectVI万方数据太原理工大学硕士研究生学位论文目录第一章绪论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11.1研究的目的和意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.11.2国内外研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.⋯...⋯..31.2.1水泵全
7、特性曲线研究成果:⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.41.2.2水泵全特性曲线预测方法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..41.2.3明渠非恒定流研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.51.3本文研究的主要内容⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..6第二章供水工程中泵站系统水力计算分析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..92.1泵站稳态运行工况⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯....92.1.1泵基本特性曲线与管路曲线⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.92.1.2泵运行工作点的确定⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..⋯.102.2泵站过渡过程计算分析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..112.2
8、.1水锤数值计算特征值法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯
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