简介：Anewmodelforasmartshellofrevolutiontreatedwithactiveconstrainedlayerdamping(ACLD)isdeveloped,andthedampingefectsoftheACLDtreatmentarediscussed.Themotionandelectricanalyticalformulationofthepiezoelectricconstrainedlayerarepresentedfirst.Basedontheauthors’recentresearchonshellsofrevolutiontreatedwithpassiveconstrainedlayerdamping(PCLD),theintegratedfirst-orderdiferentialmatrixequationofashellofrevolutionpartiallytreatedwithringACLDblocksisderivedinthefrequencydomain.Byvirtueoftheextendedhomogeneouscapacityprecisionintegrationtechnology,astableandsimplenumericalmethodisfurtherproposedtosolvetheaboveequation.Then,thevibrationresponsesofanACLDshellofrevolutionaremeasuredbyusingthepresentmodelandmethod.TheresultsshowthatthecontrolperformanceoftheACLDtreatmentiscomplicatedandfrequency-dependent.Inacertainfrequencyrange,theACLDtreatmentcanachievebetterdampingcharacteristicscomparedwiththeconventionalPCLDtreatment.

简介：Thefirstorderdifferentialmatrixequationsofthehostshellandconstrainedlayerforasandwichrotationalshellarederivedbasedonthethinshelltheory.Employingthelayerwiseprincipleandfirstordersheardeformationtheory,onlyconsideringtheshearingdeformationoftheviscoelasticlayer,theintegratedfirstorderdifferentialmatrixequationofapassiveconstrainedlayerdampingrotationalshellisestablishedbycombiningwiththenormalequilibriumequationoftheviscoelasticlayer.Ahighlyprecisetransfermatrixmethodisdevelopedbyextendedhomogeneouscapacityprecisionintegrationtechnology.Thenumericalresultsshowthatpresentmethodisaccurateandeffective.