| Structure vibration control is a new kind of anti-earthquake technique. Structuraldamping by viscoelastic damers (VED) is one of effective passive control methods, VED notonly have many advantages of simple construction, easily manufacturing, durability and lowcost but also have good damping capacity and can effectively reduce structure's windvibration and earthquake response. So at home and abroad more and more experts study onVED, and acquire many achievements, but there are many problems about new dampingmaterial and damper's study the mechanical ability of dampers, damping structure's analysisand design etc., so these problems require to be solved and completed.In this paper, the major aim is that exploiting new dampers - lead viscoelastic dampers(LVED)and lead rubber dampers (LRD) and establishing analysis design method about (lead)viscoelastic structure, the following work is done:(1) Experimental study on properties of the (lead) viscoelastic damperAccording to the results of experiment on viscoelastic dampers under differenttemperatures, frequencies, strain amplitudes and viscoelastic layer's thickness, the effects ofthe laws concerning temperature, frequency, strain amplictude and viscoelastic layer'sthickness on the behavior of the damper are obtained; Experiment on LVED and LRD, Studytheir energy absorption behavior and find different parameters' effect laws.(2) The mechanical model of the (1ead) viscoelastic damperBased on several models which are used to analyze the mechanical abilitiesof VED, the equivalent standard solid model which can reflect temperature and frequency'seffect on VED is advanced; Two kinds of mechanical model which are used to analyze themechanical abilities ofLVED and LRD are compared.(3) Vibration table test on the viscoelastic structureW the vibredon tabJe the on steel cot be wh VED, VED's damtwwt W's M on wt's N wt and the N reSPonse of StrUtheswh the tw installtw are got.(4) The dynW response analyds abOut tke qead) viscoelastic StrUCtUreThe twc reSPonse of viscOeedc to is sOhed by -- haear thecycH modality theory and modem controf theQry At the same tim, elastopec analwisof the viscoeledc wte and the adjacod viscOelasti ShaUr is - wbo to istwd by boe fold line dss wi model and VED is boated by e~Shadar solid model; We analysis of tke lead viscoelasti Sha and the adjaCenlead viscoeled StrUCtIIr is edd when ha is haded by bo fold line dsswi mam ana me is eded bytw rou for mam.(5) Th random eartkpe re8Ponse anai8is akOut tkc 0ead) viscoodc strUCtUrStufy the 0aad) viscoelasti to wi the random vibhaQn tw and Under therandom eahawt the random e-- reSPonse analwi about the 0ead) viscOelasticbe is --.(6) m OPfor tke0ry and mdsds abOut tke 0eagi thcoed 8trUCtUrUnder the ford wt goal, the H deaign of tke Parambe of W and theWM is cedwt fortw the viscotw wt's SPaCeWation cOnStw haon is posed Wh an examgle is giwn and correSPOndinceq PrOgramS is ed(7) The ~ mdsod abOat the 0ead) tticodsc strUCtUrIn ds Ppe grOW~ the are shm in the eq:(l) The -- on the steel conCrete sbo wh viscoed damers is the thet-- in Cha,(2) The caicultw model that can relleCt twerta and bo's effeC on VED isbo;(3) The new dampp pe lead viscoebo damer and the nd rutrtrer damPer) aredevH:(4) M M is M as cMed SyStem. adto dampe is equal tochane cOntrOlled Sytw's paramde, wtquak wav is nyarded as 8ytw inPu andStrUCtUr reSPonse is regarded as Sytw OUtPpe then aimulink anaiySs about the passivecoed wi modern cowt bo is ed:(5) The elaStOtw twc Me analtw abOUt viscOeed ho and adjacenNviscoM wt is tw tw W is M by e~ sIandar sOlid mode;(0) m -- alloot ro's -- ana Ascoed struta is ~d by-for:(7) yisCOelasti Sha's SPM -- COnSW totw is POSed UP;(8) Tke tw Wd aboot viscoM strUthe is Wosed, and cOnStwonmeasur of bo bo are giwi.
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