蜂窝拓扑结构的频响特性-分析与优化

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1、万方数据ABSTRACTInmodemaerospacefield’whethertheaircraftcallkeepstableconditionhasbeenawidespreadconcern．Thedevelopmenttrendofmodemaircraftistohaveadaptivewinginordertoachieveself-deformationinanmanageableenvironment_——_censionandcompressionintheplanerange·bendingandtw

2、istinthespace，andSOon——toadapttodifferentairenvironmentalchanges．Theresearchabouttheadaptivewingfocusesonthedevelopmentofthesuper—elasticskin，whichnotonlytriestomaketheoutersurfaceofthewingbecomestreamlinedform，andCalltakethelocalaerodynamicloadoftheperpendicularto

3、thesurfaceatthesametime，butalsocanachieveavarietyofindependentdeformationdescribedabovethroughtheintelligentcontr01．Atpresent，avarietyofstudieshavebeenmadeaboutthesuper-elasticskinwhichhasalargerloadcapacityandsuper-elasticdeformationcapacity．Buttheycannotmeetthede

4、mandsofaircraftsinthefutureintermsoftheamountofdeformation，stiffness，strengthandvibrationresistance，etc．BasedontheNationalNatureFundProject“Researchontheoptimumdesignanddeformationmechanismofthesuper-elasticskin'’(ProjectNumber：51075380)，honeycombstructure，theresea

5、rchhotpotatpresent，isappliedintheresearchofthesuper-elasticskininthispaper．Facedwiththeweaknessoftheskinstructureandthecharacteristicsofvarioushoneycombstructure，thenegativepoisson’Sratiohexagonalhoneycombcolestructureisadoptedandthesupplehoneycombcorelayoutisusedi

6、nthestudy,aimingtodesignthewingskinstructurewithuniversalityandadaptivecontrol，throughtakingthelightweight，highstrengthstructure，highdeformationability,strongvibrationresistance，andSOon，intoconsideration．Thedesignfocusoftheairfoilskinisthenegativepoisson’Sratiohexa

7、gonalhoneycombcorestructure．Andtheperformanceofitsstructurebecomestheprimaryandthemostimportantissueofthedevelopmentofthesuper-elasticskin．Thepapertakesthesecondordernegativepoisson’Sratiocellulartopologyastheresearchobject，andtakesthefrequencyresponsecharacteristi

8、csastheresearchtarget．Theresponsesurfacemethodandthesecondexpressionareusedtoconstructtheapproximatefunctionrelationbetweentheresearchobjectandth