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ID:36459084
大小:2.37 MB
页数:77页
时间:2019-05-10
《防区外机载布撒器总体设计关键技术研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、西北工业大学硕士学位论文防区外机载布撒器总体设计关键技术研究姓名:李健申请学位级别:硕士专业:飞行器设计指导教师:谷良贤20030101西北工业大学硕士学住论文ABSTRAClABSTRACTThispaperissomeadvancedresearchworkonconceptualdesignofstandoffairbornespreaderaccordingtOtacticalandtechnicalrequirementsofacertainstandoffairbornespreader.Thecompletedworkincludestwoaspects:oneisthemet
2、hodstudyofaerodynamicestimationofaircraftwithnoncircularshapecrosssectionbody;theotheristhedesignanddevelopmentofcomputer·-aidedsteady--stateperformanceanalysissystemofturbineenginesusedinmissiles.Thesetwoaspectsarekeytechnologyneedtobesolvedinthephaseofoverallprojectpreliminar3,designofstandoffair
3、bornespreader.Inchapter2,asetofaerodynamicestimationmethodsofaircraftwithnoncircu
4、arshapecrosssectionbodyareestablishedbasedontheanalysisofaerodynamiccharacteristicofaircraftwithnoncircularshapecrosssectionbody.Themethodsusedtheaerodynamicestimationmethodofaircraftwithcircularshapecrosssectionbodyt
5、ocalculatetheaerodynamiccharacteristicofaircraftwithnoncircularshapecrosssectionbodybyinducingnoncircularshapeCROSSsectionadjustmentfactors(includingnoncircularshapefactorFsB,coefficientKofcorrectionoftheinterferencefactorbetweenwingandbodyK,andNewtonadjustmentfactor目7).Thenthemathematicexpressions
6、ofcalculating如andKarederived,andthecomputationalmodeltocalculatetheapparentareaofarbitraryshapecrosssectionisestablishedbyconstructinganewbasicsolution:two-dimensionalconstantdipoledistributinglinearelement.Theexamplesinthischaptervalidatethecorrectnessandaccuracyofthemethods.Inchapter3,thecomputat
7、ionalmodeltocalculatethesteady—stateperformanceofturbineengines(includingturbojetengineandturbofanengine)usedinmissilesisestablishedfirstly,andthenthecomputer-aidedsteady—stateperformanceanalysissystemofturbineenginesusedinmissilesisdesignedandrealized,andtirefunctionaldesign,programstructureandope
8、rationalprocedureofthesystemaregiven.Andfinallythesystemisprovedtobecorrect,convenientandpracticalbytwoexamplesgiveninthispaper,andSOitcallbeusedforthesteady·stateperformancecalculationofturbineengineinthep
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