深空探測器的軌道設計與優(yōu)化.pdf

1、分類號UDC密級編號中國科學院研究生院碩士學位論文】[3lJU丑1ITrajectoryDesignandOptimizationforDeepSpaceExplorationProbe呈塞蕉指導教師趣建垡硒究雖指導教師單位名稱蟲國型堂院窒悶型堂皇座旦班宜蟲：墜申請學位級別亟堂焦學科專業(yè)名稱玉缸墨遮讓論文提交日期2QQ互生且論文答辯日期2鯉魚生魚目2目培養(yǎng)單位生國型堂院窒閶抖堂皇廑口班塞生!墜學位授予單位圭墾型堂瞳硒窒生瞳答辯委員會主席

2、縫世查深空探測器的軌道設計與優(yōu)化TrajectoryDesignandOptimizationforDeepSpaceExplorationProbeMaWenzhen(SpacecraftDesign)DirectedbyZhengJianhuaAbstractAlongwiththedevelopmentofspacetechnologydeepspaceexplorationisdrawingmoreandmoreattentio

3、nfromthepublicTrajectorydesignandoptimizationisoneofthekeytechniquesofdeepspaceexplorationTrajectorydesignofdeepspaceprobeismorecomplicatedthanthatofearthsatellite，andthereareseveraltransfertrajectoriesforthesamedestinat

4、ionorbitInthisthesis，wefocusonthegravity—assistedtrajectorydesignandoptimizationforspacemissionsFirstlythedesigntechniquesformultipleencountergravity—assistedtrajectorieswithoutpropulsivemaneuversarestudiedBasedonthepatc

5、hedconicmethodandminimumenergydemand，thegraphicalmethodofP—Rpthatpermitsthequickidentificationofallviableballisticgravity—assistsequencestoagiventargetisintroducedThePorkch叩energycontourmapsplottedthroughsolvingtheLamber

6、tproblemareusedtosearchforthelaunchopportunityofmultipleencountersthatdemandsthelowestlaunchenergyBymatchingtheenergyoftheproberelativetothegravity。assistbodybeforeandaftertheflybY(targetC3andC3)，theheliocentricelliptica

7、ltransferorbitandthegeocentrichyperbolicescapeorbitaredesignedMoreover，thegeneticalgorithmisusedtooptimizetheconventional“Pork—Chop’’plotsmethodwithlesscalculatingtimeandhigherefficiencyofsearchingforlaunchopportunityIti

8、smoreremarkabletosearchforalargelaunchtimeperiodSecondlytakethetrajectorydesignofexplorationprobeforthehighlatitudeofthesunforexample，theprocessoftrajectorydesignandoptimizationisstudiedwiththeabovemethodsViabletransferp