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1、OverviewUsersubroutine UAMP:·allowsyoutodefinethecurrentvalueofanamplitudedefinitionasafunctionoftime;·canbeusedtomodelcontrolengineeringaspectsofyoursystemwhensensorsareused(sensorvaluesarefromthebeginningoftheincrement);·canuseapredefinednumberofstatevariablesinthe
2、irdefinition;and·canoptionallycomputethederivativesandintegralsoftheamplitudefunction.ExplicitsolutiondependenceThesolutiondependenceintroducedinthisusersubroutineisexplicit:alldatapassedinthesubroutineforinformationortobeupdatedarevaluesatthebeginningofthatincrement
3、.UsersubroutineinterfaceSUBROUTINEUAMP(*ampName,time,ampValueOld,dt,nProps,props,nSvars,*svars,lFlagsInfo,*nSensor,sensorValues,sensorNames,jSensorLookUpTable,*AmpValueNew,*lFlagsDefine,*AmpDerivative,AmpSecDerivative,AmpIncIntegral,*AmpDoubleIntegral)CINCLUDE'ABA_PA
4、RAM.INC'Ctimeindicesparameter(iStepTime=1,*iTotalTime=2,*nTime=2)Cflagspassedinforinformationparameter(iInitialization=1,*iRegularInc=2,*iCuts=3*ikStep=4*nFlagsInfo=4)Coptionalflagstobedefinedparameter(iComputeDeriv=1,*iComputeSecDeriv=2,*iComputeInteg=3,*iComputeDou
5、bleInteg=4,*iStopAnalysis=5,*iConcludeStep=6,*nFlagsDefine=6)dimensiontime(nTime),lFlagsInfo(nFlagsInfo),*lFlagsDefine(nFlagsDefine)dimensionjSensorLookUpTable(*)dimensionsensorValues(nSensor),svars(nSvars),props(nProps)character*80sensorNames(nSensor)character*80amp
6、NameusercodingtodefineAmpValueNew,andoptionallylFlagsDefine,AmpDerivative,AmpSecDerivative,AmpIncIntegral,AmpDoubleIntegralRETURNENDVariabletobedefinedAmpValueNewCurrentvalueoftheamplitude.VariablesthatcanbeupdatedlFlagsDefineIntegerflagarraytodeterminewhetherthecomp
7、utationofadditionalquantitiesisnecessaryortosetstepcontinuationrequirements.lFlagsDefine(iComputeDeriv)Ifsetto1,youmustprovidethecomputationoftheamplitudederivative.Thedefaultis0,whichmeansthatAbaquscomputesthederivativeautomatically.lFlagsDefine(iComputeSecDeriv)Ifs
8、etto1,youmustprovidethecomputationoftheamplitudesecondderivative.Thedefaultis0,whichmeansthatAbaquscomputesthesecondderivativeautom
