Biomimetics of Campaniform Sensilla： Measuring Strain from the Deformation of Holes-中国Betway体育网页登陆

摘要 Wepresentabio-inspiredstrategyfordesigningembeddedstrainsensorsinspacestructures.Ininsects,thecampaniformsensillumisaholeextendingthroughthecuticlearrangedsuchthatitsshapechangesinresponsetoloads.Theshapechangeisrotatedthrough90?bythesuspensionofabell-shapedcapwhosedeflectionisdetectedbyacellbeneaththecuticle.Itcanbesensitivetodisplacementsoftheorderof1nm.Theessentialmorphology,aholeformedinaplateoffibrouscompositemate-rial,wasmodelledbySkordosetal.whoshowedthatglobaldeformationoftheplate(whichcanbeflat,curvedoratube)induceshigherlocaldeformationoftheholeduetoitslocallyhighercompliance.Furtherdevelopmentsreportedhereshowthatthisapproachcanbeappliedtogroupsofholesrelativetotheirorientation.Themorphologyofthesensillumininsectssuggeststhatgreatersensitivitycanbeachievedbyarrangingseveralholesinaregularpattern;thatiftheholeisovalitcanbe'aimed'tosensespecificstraindirections;andthateitherbycontrollingtheshapeoftheholeoritsrelationshipwithotherholesitcanhaveatunedresponsetodynamicstrains.Weinvestigatespaceapplicationsinwhichnovelbio-inspiredstrainsensorscouldsuccessfullybeused.

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Biomimetics of Campaniform Sensilla： Measuring Strain from the Deformation of Holes

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