Controllability and observability measures of structural vibration and acoustic radiation-中国期刊网

摘要 Thispaperstudiesthecontrollabilityandobservabilitymeasuresofstructuralvi?brationandacousticradiationandproposesameasureofmodalobservabilitybasedonacousticpressureoutputsandmeasuresofcontrollabilityandobservabilityofacousticradiationbycombiningthemeasuresofmodalcontrollabilityandobservabilityofvibrationmodeswithcorrespondingmodalacousticradiationefficiencies.Aplatewithcontrolforceinputsandvibrationalresponseoutputsandacousticpressureoutputsisinvolvedtoshowthemodalcontrollabilityandobservabilitymeasuresofvibrationmodesandmeasuresofcontrollabilityandobservabil?ityofstructuralvibrationandacousticradiation.Observabilitymeasuresbasedonvibrationalresponseoutputsandacousticpressureoutputsarecomparedandtheemphasisisonthemea?suresbasedontheacousticpressureoutputs.Finallytheapplicationandusefulnessofthecontrollabilityandobservabilitymeasurestoactivecontrolofstructuralvibrationandacous?ticradiationareillustratedandcompared.Itshowsthatthecontrollabilityandobservabilitymeasuresprovideusefulguidanceforactivecontroldesignespeciallyinoptimalactuatorandsensorplacement.

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Controllability and observability measures of structural vibration and acoustic radiation

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Controllability and observability measures of structural vibration and acoustic radiation

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