求反译,急!
Model:
Bergeron:ConstantparameterKCLeeorClarkmodels
PI:NominalPI-equivalent(shortlines)
JMarti:Frequencydependentmodelwithconstanttransformationmatrix
Noda:Frequencydependentmodel(notsupportedinCABLECONSTANTS)
Semlyen:Frequencydependentsimplefittedmodel(supportedinCABLEPARAMETERSfromversion3.9)
TheJMarti,NodaandSemlyenmodelsarefittedinafrequencyrangespecifiedwiththenumberofdecades(Decades)fromFreq.initandthenumberofsamplepointsperdecade(Points/Dec).TheJMartiandSemlyenmodelsalsorequiresafrequencywherethetransformationmatrixiscalculated(thisfrequencyshouldbedominantisthelatertransientstudy)andasteadystatefrequencyforcalculationofthesteadystatecondition.TheNodamodelneedsafrequencyFreq.veloc.wherethevelocityofthenaturalmodesofpropagationarecalculated.Avaluehigherthanthehighestfrequencyofthefrequencyscanisusuallyappropriate.TheJMarti,NodaandSemlyenmodelsneedinsomecasesmodificationofthedefaultfittingdata.PleasereadtheRulebookforfurtherdetails.