液氧煤油發(fā)動機用電機測量控制系統(tǒng)研究設(shè)計.pdf

1、西北工業(yè)大學(xué)碩士學(xué)位論文液氧煤油發(fā)動機用電機測量控制系統(tǒng)研究設(shè)計姓名：劉軍申請學(xué)位級別：碩士專業(yè)：航天工程指導(dǎo)教師：孫得川李小明20050401耍j!蘭些盔蘭三登堡主堂焦燕塞一———A8S蕈薹t度C’l’Thedesign，manufactureandoperationofliquid—propellantrocketenginearesupportedbydifferentkindsofmeasurementandcontrolsys

2、tems，andadvancesinrockettechnologyalsoacceleratestheimprovementsofsuchsystems。Anewthrustand蕊xtureratiocontrolmethodusingflowregulatorandfuelthrottlevalveisintroducedintheliquidoxygenkerosenerocketengineTheflowregulatoran

3、dfuelthrottlevalvearecontrolledbysteppingmotorsInthispaperacomprehensiveanalysisoftherequirementsismadebyindepthresearchoftheoperationconditionsandcharacteristicsofsteppingmotorassembledintherocketengine；aprofoundanddeta

4、iledstudyofassociatedtechniquessuchaslowsignalmeasurement，motorspeedtuning，systemdesignandcircuitdesignisperformed，andamodularizedhardwaresystemisconstructedAmotortestandcontrolsystemusingfloatinggroundandsignalisolation

5、techniquesisdesignedwithaembeddedcontrollerasthesystemcoreTheaccuratemeasureofmotorsignalsandexactcontrolofsteppingmotorisachieved。Atthesametimethesynchronizationandtimeddataacquisffionoftwoindependentsteppingmotorsisful

6、filledbytheinterrupttechniques；theproblemsofmultipletaskprocessingingroundtestfiresolvedThesoftwareisdevelopedonDOSplatformwiththeClanguage，andamodulebasedapproachisadoptedwithredundancyandfaulttolerancedesigntechniques；

7、thefeaturesofhardwareareaccomplishedperfectlyandawelldesignedhumaninterfaceisprovidedThemotortestandcontrolsystemintroducedinthispaperisappliedtothepredeliverytestofmotorandhydrodynamicstestprocess；inthegroundtestofliqui