帶復(fù)雜天線的撓性衛(wèi)星動力學(xué)建模與控制.pdf

1、哈爾濱工業(yè)大學(xué)碩士學(xué)位論文帶復(fù)雜天線的撓性衛(wèi)星動力學(xué)建模與控制姓名：季念坤申請學(xué)位級別：碩士專業(yè)：飛行器設(shè)計指導(dǎo)教師：楊大明20050601墮璽鎏二些查蘭三蘭望蘭蘭堡塵蘭AbstractThispaperstudiesdynamicsmodelingandattitudecontrolofflexiblesatellitewithcomplexantennas，andtherewithanalyzeswhetherthesatellit

2、ewithdesignedcontrollerisabletosatisfytheindexofattitudepointingprecisionandattitudestabilizationprecisioninthecasethatthecomplexantennasmovesandtheflexiblesolararraysvibratesFirstlythestructureandmainparametersofthesate

3、llitearegivenunderthebackgroundofearthobservationsatelliteSecondly，theLagrangemethodisappliedtoestablishthedynamicsequationsofthesatellite，thereactivewheelsandthetwoantennas，aswellastheelasticvibrationequationoftheelasti

4、csolararraysInthispart，it’SemphaticallydiscusseshowtogetdynamicsequationofthecomplexantennasThirdlythetrackingrulesofthetwoantennasarederivedinthispaperwhichincludetheformulasoftheantennas’anglesandthearithmeticofcontrol

5、torquesTheseresultscanbeusedtocalculatethedisturbancetorquesactonsatellitecausedbytherotationoftheantennasThenthesolararraysaredisposedapplyingthemodetruncationmethodandthedynamicsofthesatelliteiSlinearizedFromthelinearm

6、odeltheZeromomentumminorcycledtransferfunctionmatrixofthewholesatelliteiSderivedInthispartthedistributionofpolesandzerosofthetransferfunctionmatrixareanalyzedspeciallyThenusingthemethodofInverseNyquistArray(INA)，thispape

7、rdiscussesthediagonaldominanceofthezeromomentumminor—cycledtransfermatrixThereforethecontrolmaneuverbasedontheprincipalaxesisdeeidedandthePIDcontrollersonthreeaxesaledesignedAtlastnumericaIsimulationtotheclosedloopaRitud

8、econtrolsystemofthesatelliteiSdoneTheresultsshowthattheclosed—loopcontrolsystemoftheflexiblesatellitehassufficientabilitytosatisfytheprospectiveperformanceindexofsteadystateinthefaceofthedisturbalicetorquescomefromtheenv