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1、哈尔滨工业大学工学硕士学位论文AbstractNowadays,theaerospaceindustryisanimportantsymboltomeasurethelevelofcountries’technology.Thedevelopmentoftheaerospaceindustryiscomplexanddifficultandinvolvesalmostalloverthefieldofindustry,whichhasbeenattractedincreasinglyattention.Astheoneofthreeimportan
2、taerospacetechnologies,theimportanceofthespacerendezvoustechnologyisevident.Althoughmanycountrieshaveachievedrendezvousanddockingmission,thetechnologyisnotmatureyetduetoitscomplexityandhighrisk.Inaddition,consideringhighcostandconsumptionoftheaerospaceindustry,itisworthtostudy
3、anddiscusshowtodesignanorbitaltransferprocesstoachievesavingfuelandreducingtransfertime.Inthispaper,Lambertproblemofthespacecraftrendezvoustheoryisinvestigated.Meanwhile,modelsareestablishedattheearthinertialcoordinatesystemaccordingtothespacecraft'sorbitalelementsandorbitalpo
4、sitionandvelocityvector.Threeintelligentoptimizationalgorithms,suchasenumerationmethod,geneticalgorithmandharmonysearchalgorithm,areappliedtotrajectoryoptimization.Themainsectionsareasfollows.Firstly,establishtheorbitalmodelandkinematicsoftargetandspacecraft.Inordertoclearlyde
5、scriptspacecraftrendezvousprocess,thecharacteristicsofsatelliteproblemsareintroduced.Andtherelationalequationoforbitalelementsandpositionandvelocityvectorsisestablished,whichlaysthefoundationfortheLambertproblemsandoptimizationdesign.Secondly,fornon-co-planartransfertrajectory
6、ofspacerendezvousbasedonLambertproblem,threemethodsincludingBisectionbyiteratingsemi-majoraxis,Battin-VaughanalgorithmandGraphicSemi-majoraxisiterationalgorithmareproposedtosolvetheLambertproblem.Thecoreideasandstepsofthethreealgorithmsarepresented.Usingtwoexamplestodemonstrat
7、etheeffectivenessofthethreealgorithms,andtheefficiencyandaccuracyofthethreealgorithmsarecomparedtoanalysistheconclusion.Finally,thispaperinvestigatestransferorbitaltrajectoryoptimizationproblemfromconstraintsanalysis,parameterselection,objectivefunctiondefinitionandoptimizatio
8、nalgorithmselectionfouraspects.Firstofall,analyzespaceconstra
