简介：Toeffectivelyreducethedamagetopeopleanddevicesincivildefenseengineeringsubjectedtoblastshock,ablastshockisolationsystemwithmagnetorheologicalfluiddampers(MRFD)isproposed.MRFDcanprovidecontinuouslyadjustableCoulombfrictionandhasmanyadvantagesforsemi-activecontrol.NumericalsimulationofthisisolationsystemisfinishedusingMatlabsimulinktoolbox.Generalsemi-activecontrolalgorithmsareconsidedbasedoninstantaneousoptimalactivecontrolalgorithm.Andtheresultsindicatethattheshockisolationsystemcanworkefficiently,decreasingabout93%ofthepeakaccelerationoftheisolationfloor.
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