基于7＃--923喷管的流场控制系统的设计与实现

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1、万方数据东北大学硕士学位论文abstractDesignandImplementationofControlSystemoftheFlowFieldBasedonthe7撑．9撑NozzleAbstractWindtunnel，isadevicethatusingairdrivingacontrollablesimulatedatmosphericconditionsforvariouskindsofpneumaticexperimentwhichisdesignedinacertainrequirements

2、ofpipe．Itisoneofthemainexperimentalapparatusexperimentalaerodynamics．FL-1windtunnelisahypersonicwindtunnel，inthepastweusedthenozzlesfrom0to6，andwehadtheexperimentabilityoftheMahernumberform0．4tO3．0．Withthedevelopmentofaeronautictechnology,FL一1tunnelcansatisf

3、ytheneedofvarioustypesofexperiment．Weusedkindsofnewtechnology,includingadvancedcomputer,programmablecontroller,homemadesystemsoftwareandnetworkcommunicationtechnology．Wedesignedcontroller,homemadesystemsoftwareandnetworkcommunicationtechnology．Wedesignedcont

4、rolsystemandremotemonitoringsystem．Inthispapertheauthordiscussedhardwareandsoftware，researchedthecontrolalgorithmoftheflow,wrotePCmonitoringsoftware，ensurethesystemhasstabileanddependableresults．Intheflowcontrolsystem，inordertorealizingtheeffectivecontroloft

5、hetotalpressure，wedesignedcontrolsystembasedonthetheoryoffuzzyPID．ThefuzzysystemandthetraditionalPIDcontrolarecombinedinthis，Thispaperdescribesthecontrolprincipleincludingthepressureregulatingvalve，thediffuserandtheejector,narratesthedesignschemeofcontrolsys

6、tem．Itrealizesshortrangecontrolofhypogynousmashineandlongdistancecontrolofepigynousmachine．Thehostcomputercommunicatewiththeotherequipmentofthepressureregulatingvalve，theejector，thediffuserbyfieldbus，thehostcomputersendsacormnand，theequipmentcompletethecomma

7、ndsignalsentbythehostcomputer，andexecutivetherealtimefeedbackcurrentmechanismimplementation，toensuretheclosedloopcontr01．Atthesanletime，wedevelopedthesystemsoftwarebasedonflowcontrolsystem，thesoftwareisbasedonVB6．0language，ithasfriendlyuserinterface，italsoha

8、smultimenumultimadmultifunction，itCanalsoadjusttherealtimemonitoringoftheprocessofflowfield．Withthecompletionoftheproject，theFL·1windtunnelhastheexperimentabilityof．V．万方数据东北大学硕士学位论文abstracttheMa