模块化飞机结构设计优化方法-研究

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1、模块化飞机结构优化设计方法研究ABSTRACTThemodulardesignoftheaircraftisoneofthetrendsinthefuture,withastrongcompetitiveedgeinimprovingthelifecycleoftheaircraftintermsofeconomy,wecanadjustmoduleaccordingtothetasktoachieveamulti-purposemachinewithstrongadaptability.Themodulardesignofaircraftstructuresresearchh

2、asimportantimplicationsforthepracticalapplicationofthetheoryofmodularaircraft.Modularaircraftisdividedintocommonmoduleandindividualmodule.Individualmodulescanbedesignedaccordingtothemodernaircraftstructuredesigntheoryandmethods,whilethecommonmodulewhichisappliedtocomplexloadingconditionsrequ

3、iresthestudyofnewmodulardesigntheoryandmethods.Thecontentofthestructuredesignofamodularplaneisdividedintotheairframestructuredesignandthepartingsurfacedesign.Inthispaper,theairframestructuredesignoptimizationmethodsarediscussedandresearched.Thevariableenvelopemethod,multipleworkingmethodsbas

4、edonconstraintelimination,single-stageandtwo-stageoptimizationmethodareproposed.Thefirsttwomethodsbelongtothesequenceoptimization.Thatistosay,firstcommonmoduleisconductedthroughoptimumstructuredesignandthentheindividualmodule.Thethirdmethodbelongstoparalleloptimizationmethod,consideringtheco

5、mmonandindividualvariablesvaluesandtherelationshipbetweentheobjectivefunction,selecttheoptimalcombinationofvariables.Throughtrussexamplesverifythefeasibilityofthreemethods,comparevariousoptimizationmethodsandthenallaresummarizedintheadvantagesanddisadvantagesofthemodulardesign.Inthispaper,th

6、reeexamplesofoptimizationofthemodularwingareusedtoverifythetheoryandmethodsofmodularaircraftstructuraldesign.Wecanachievethepurposeofthemodulardesignoftheaircraftattheexpenseofacertainweightconditions.Keywords:modularaircraft,structureoptimizationdesign,envelopemethod,single-stageoptimizatio

7、n,two-stageoptimization,multiconditionoptimization。II万方数据南京航空航天大学硕士学位论文目录第一章绪论....................................................................................................................11.1引言................................................