简介：Thespinningsolarsailoflargescalehasbeenwelldevelopedinrecentyears.Suchasolarsailcanbeconsideredasarigid-flexiblemultibodysystemmainlycomposedofaspinningcentralrigidhub,anumberofflexiblethintethers,sailmembranes,andtipmasses.Asimplifiedinterplanetarykite-craftacceleratedbyradiationoftheSun(IKAROS)modelisestablishedinthisstudybyusingtheabsolute-coordinate-based(ACB)methodthatcombinesthenaturalcoordinateformulation(NCF)describingthecentralrigidhubandtheabsolutenodalcoordinateformulation(ANCF)describingflexibleparts.Theinitialconfigurationofthesysteminthesecond-stagedeploymentisdeterminedthroughbothdynamicandstaticanalyses.Thehugesetofstiffequationsofsystemdynamicsissolvedbyusingthegeneralized-alphamethod,andthusthedeploymentdynamicsofthesystemcanbewellunderstood.