基于BP神經(jīng)網(wǎng)絡(luò)的電動舵機(jī)動態(tài)加載控制方法研究.pdf

1、西北工業(yè)大學(xué)碩士學(xué)位論文基于BP神經(jīng)網(wǎng)絡(luò)的電動舵機(jī)動態(tài)加載控制方法研究姓名：邱紅崗申請學(xué)位級別：碩士專業(yè)：機(jī)械電子工程指導(dǎo)教師：袁朝輝20070301西北f：業(yè)大學(xué)碩十學(xué)位論文摘要ABSTRACTInthisp印eracommlmetllodaimingatelectricactIlatorhydraulicloadingsystemisdiscllssedaIlddesignedFifstlyamatIlematicalmodelof

2、nleloadjngsystcmisestabIishedBasedonsinglechannelloadingsystcm’smamematicaImodel，tllesystem’sdynamiccharacteristicwasanalyzedThekeyproblemishowtoeliminatestrongpositiondisturballceforce，whichisanimpo呦ltcriteriontoeValuat

3、eloadingsystem’squali夠Inthisway，howtodesignapropercomrolstrategytoreducestrongpositiondisturbaIlceforcebecomesakeyfactoLSecondly，thispaperelabo豫testhecauseofthestrongpositiondisturbaIlceforce，孤alyzesthefactorswhichinnuen

4、ceit，aJldadoptsStructureInvariabilityprinciple弱fcedfbrwardcompensationtothedisturbancet0diminishedstmngpositiondisturballce，allddigitals婦ulationbasedonMatlabisintroducedtosimuIateSimuIatiOnresuItsshowmatthecon仃1)lstrateg

5、yw船feasibleTheoreticallyfcedfonvardcompensationcaneliminatetllepositiondisturbance，butthehigh—orderdifferemialoftllecompensatorishardtorealizephysicallyBesides，nonlinearityaIldparametersuncertaintyofelectro—hydfaulicserv

6、osystemreducemerealpracticalen’ectofthatcontmlmemod111irdlyaimingatmedisadvantagesOftraditionalcontrolmemod，觚optimalcon嘶lstrategybasedonBPneutralnet、vorkw船proposeda矗erthecombinationofCl硒sicComrolT_tleory柚dBPneunalnetwork

7、，andt11ecloseloopsystemisproVedtobe伊admllystableTheresultsofsimulationinwhichcontrolstrategywasappliedtotheelectro_hydmulicservosystemindicatethatthecontr01strategyisea’cctiveThecontrolsystem’sdyn鋤icperfo珊aIIcehasbeenimp

8、roVedmarkedIycomparedwiththepureclassicalcomr01Attheendoftllispaper，thetestfnethods，testresultsaIldanalysisresultsofthesystemperfo珊aIlcetestarcprovidedThetestresultsshowthattllesystem’spe商)mlancemeetsmostrequirementsintl