Thecreepeffectofsuspensionsinelectro-dynamicloudspeakerswasmodeledbasedonfractionalorderderivatives.Thefractionalstandardlinearsolid(FSLS)modelwaspresentedbysubstitutingtheAbeldashpotforNewtondashpotinStandardLinearSolid(SLS)model.TheelectricalimpedanceaswellasthetransferfunctionbetweendiaphragmdisplacementandinputvoltageofthetwotestedmidrangeloudspeakerswasmeasuredbyKlippellaseranalyzersystem,andthemodelparameterswereidentifiedbytheleast-mean-squaremethod.BycomparingthefittingresultsofFSLSmodelwiththeothertwoclassicalmodels-4ParameterLogarithmicmodelandSLSmodel,theresultsshowthattheFSLSmodelcanrightlypredictthefrequencydependentcompliancelossfactorandyieldhigheraccuracyformodelingthecreepeffectinloudspeakersuspensions.
