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1、24thAppliedAerodynamicsConferenceAIAA2006-39225-8June2006,SanFrancisco,California24thAIAAAppliedAerodynamicsConference,June.5-8,2006,SanFrancisco,CAAeroship:ANewFlightPlatform‡†TianshuLiuandWilliamW.LiouWesternMichiganUniversity,Kalamazoo,MI49008Thispaperproposestheaeroshipconceptfo
2、rchallengingterrestrialandplanetaryflightmissionssuchaspersonalflight,planetaryflightandhigh-altitudeflight.Incontrasttotheconventionalflightplatformslikefixed-wingaircraft,rotorcraftandballoon/airship,theaeroshipconceptexploresauniquecombinationofanairshipmoduleandawing/propulsionm
3、odulebyoptimizingadelicateequilibriumbetweentheaerodynamicandaerostaticforcestomeetdemandingrequirementsintakeoff/landing,low-speedflight,andcontrolandmaneuver.Theperformanceanalysisindicatesthataeroshiphasdistinctadvantagesovertheconventionalflightplatformsinthedifficultflightcondi
4、tions.Personalaeroshipprovidesapromisingsolutiontopersonalflighttoaccommodatesomestringentfeaturesintakeoff/landing,low-speedflight,piloting,cost,maintenance,noise,andemergencesafety.Terrestrialhigh-altitudeaeroshipisaneconomicalandrobustairvehiclethatisabletocruiseatthealtitudesabo
5、ve30kmforsurveillance,reconnaissanceandscientificresearch.Planetaryaeroship(e.g.theMarsaeroship)isfeasibleforlow-⋅speedflightandshorttakeoff/landinginrarifiedplanetaryatmospheres.TableofContents1.Introduction1.1.Personalflight1.2.Planetaryflight1.3.High-altitudeflight1.4.Needofnewco
6、ncept2.AeroshipConcept2.1.Generalidea2.2.Aerodynamicconfigurations2.3.Non-dimensionalcoefficients3.SteadyFlight3.1.Thrustrequiredforlevelflight3.2.MaximumL/D3.3.Powerrequiredforlevelflight3.4.Climb3.5.Glide3.6.Stallvelocityandmaximumvelocity3.7.Rangeandendurance4.AcceleratedFlight4.
7、1.Levelturn4.2.Pull-upmaneuver4.3.Takeoffandlanding4.4.Freefall5.ConceptualDesignsofAeroship5.1.Personalaeroship5.1.1.Designparameters⋅‡:AssociateProfessor,DepartmentofMechanicalandAeronauticalEngineering,ParkviewCampusWesternMichiganUniversity,Kalamazoo,MI49008tianshu.liu@wmich.edu
8、,269-276-3426,Membe
