Въведение
Infact,thedevelopmentofinformationprocessingtechnologyandnetworktechnologyhascompletelychangedtheconceptofsimulation.Combiningadvancedsimulationtechnologywithnetworktechnology,asimulationenvironmentiscomposedofrealequipmentandacomputersimulationsystem.Thecomputernetworkconnectsthenewweaponsystemwithdevelopersandusersscatteredindifferentlocations,allowinguserstosimulateThe“use”oftheweaponsbeingdevelopedintheenvironmentallowsthedeveloperstounderstandthecombatuseoftheweaponsinadvance,andthetwosideswillconductjointresearchtodiscoverandsolveproblemsintime.Thisnotonlyspeedsupthedevelopmentofweaponsystems,butalsoshortensthetimeittakesfornewweaponstoformcombateffectiveness.Intermsofteamtraining,simulationtechnologyisalsoveryuseful.Bytheendofthe1980s,theUSArmystillusedfieldtrainingandsimulationtrainingtotrainsoldiers.Themainproblemoffieldtrainingisthehighconsumptionoffuelandammunition,thedifficultyofthevenue,andtheorganizationoflarge-scaleexercisesaretime-consumingandlaborious;forsimulationtraining,thesimulatorusedmaybemoreexpensivethantherealequipmentitsimulates.Inordertosolvetheproblemoftrooptraining,theAdvancedResearchProjectsAgencyoftheUSDepartmentofDefensebegantoimplementasimulatornetworkingplanin1983,connectingtrainersscatteredinvariousplacesintoanetworkwithcomputerstoformadistributedinteractivesimulationtoachieveremoteconnectivityandinteroperability.Simulationtechnologyisakeytechnologyfornationaldefense.Itwillplayanincreasinglyimportantroleinimprovingtheefficiencyofweaponsystemdevelopment,improvingtrooptraining,andimprovingcombateffectiveness.Ithasbecomeanimportantmeansfordevelopedcountriestoachievequalitymilitarybuilding.
Инструмент за симулация
Mainlyreferstosimulationhardwareandsimulationsoftware.Themostimportantthinginthesimulationhardwareisthecomputer.Therearethreetypesofcomputersusedforsimulation:analogcomputers,digitalcomputers,andhybridcomputers.Digitalcomputerscanalsobedividedintogeneral-purposedigitalcomputersandspecial-purposedigitalcomputers.Theanalogcomputerismainlyusedforthesimulationofcontinuoussystems,whichiscalledanalogsimulation.Inthesimulationsimulation,accordingtothesimulationmodel(hereistheset-updiagram),theoperationalamplifiersareconnectedasrequired,andtherelevantcoefficientdevicesareadjusted.Themodelcanbemodifiedbychangingtheconnectionformoftheoperationalamplifierandthesettingvalueofeachcoefficient.Thesimulationresultscanbeoutputcontinuously.Therefore,thesimulationcomputerhasgoodhuman-computerinteractionandissuitableforreal-timesimulation.Changingthetimescalecanalsorealizesuperreal-timesimulation.Digitalcomputersbeforethe1960swerelimitedintheirapplicationinsimulationduetotheirlowcomputingspeedandpoorhuman-computerinteraction.Moderndigitalcomputershaveveryhighspeeds,andsomespecialdigitalcomputershavehigherspeeds,whichcanalreadymeettherequirementsofreal-timesimulationofmostsystems.Duetothedevelopmentofsoftware,interfacesandterminaltechnologies,thehuman-computerinteractionhasalsobeenimproved.Greatimprovement.Therefore,digitalcomputershavebecomethemaintoolsofmodernsimulation.Hybridcomputersworktogetherwithanalogcomputersanddigitalcomputers,andgivefullplaytothehighspeedofanalogcomputersandthehigh-precision,logicaloperationsandstoragecapabilitiesofdigitalcomputers.However,thiskindofsystemisrelativelyexpensiveandshouldonlybeusedinsomestrictsystemsimulations.Inadditiontocomputers,simulationhardwarealsoincludessomededicatedphysicalsimulators,suchasmotionsimulators,targetsimulators,loadsimulators,environmentsimulators,etc.
Simulationsoftwareincludessimulationprogramsforsimulationservices,simulationpackages,simulationlanguages,andsimulationsoftwaresystemswithadatabaseasthecore.Therearemanytypesofsimulationsoftware.Intheengineeringfield,itisusedforsystemperformanceevaluation,suchasmechanismdynamicsanalysis,controlmechanicsanalysis,structuralanalysis,thermalanalysis,processingsimulation,etc.ThesimulationsoftwaresystemMSCSoftwarehasbeenusedinhigh-techfieldssuchasaerospace45yearsofapplicationhistory.
Симулационен метод
Mainlyreferstothemethodofestablishingsimulationmodelandconductingsimulationexperiment,whichcanbedividedintotwocategories:simulationmethodofcontinuoussystemandsimulationmethodofdiscreteeventsystem(seeСимулационен метод).Peoplesometimesincludethemethodofestablishingamathematicalmodelasasimulationmethod.Thisisbecausealthoughthereareasetoftheoreticalandexperimentalmodelingmethodsforcontinuoussystems,whenthesystemissimulated,theapproximatemodelobtainedthroughassumptionsisoftenusedfirst.Totestwhetherthehypothesisiscorrect,modifythemodelifnecessarytomakeitclosertotherealsystem.Forthediscreteeventsystemtoestablishitsmathematicalmodelispartofthesimulation.
Приложение и ползи
Themainreasonforthedevelopmentofsimulationtechnologyisthehugesocialandeconomicbenefitsitbrings.Inthe1950sand1960s,simulationwasmainlyusedinengineeringtechnologyfieldssuchasaviation,aerospace,electricpower,chemicalindustryandotherindustrialprocesscontrol.Intheaviationindustry,theuseofsimulationtechnologyhasshortenedthedesignanddevelopmentcycleoflargepassengeraircraftby20%.Usingflightsimulatorstotrainpilotsonthegroundnotonlysavesalotoffuelandmoney(thecostisonlyone-tenthofthatofairflighttraining),butitisnotrestrictedbymeteorologicalconditionsandvenues.Inaddition,somefaultsthatcannotbesetduringairtrainingcanbesetontheflightsimulatortocultivatethepilot'sabilitytodealwithfaults.Theuniquesafetyofthetrainingsimulatorisalsoanimportantadvantageofsimulationtechnology.Intheaerospaceindustry,theuseofsimulationexperimentsinsteadoflive-firetestscanreducethenumberoflive-firetestsby80%.Inthepowerindustry,thesimulationsystemisusedtodebug,maintainandtroubleshootnuclearpowerplants,andthecostofbuildingthesimulationsystemcanberecoveredinoneyear.Modernsimulationtechnologyisnotonlyappliedtotraditionalengineeringfields,butalsoincreasinglywidelyusedinsocial,economic,biologicalandotherfields,suchastrafficcontrol,urbanplanning,resourceutilization,environmentalpollutionpreventionandcontrol,productionmanagement,marketforecasting,worldeconomicanalysisandForecasting,populationcontrol,etc.Forsystemssuchassocialeconomy,itisdifficulttoexperimentonrealsystems.Therefore,itismoreimportanttousesimulationtechnologytostudythesesystems.
Посока на развитие
Intermsofemulationhardware,digitalcomputershavegraduallybeenadoptedmorethananalogcomputerssincethe1960s.Thehybridcomputersystemstagnatedinthe1970s,andtherehasbeenatrendofdevelopmentsincethe1980s.Duetothedevelopmentofminicomputersandmicroprocessors,aswellastheadoptionofpipelineprinciplesandparalleloperations,thespeedofdigitalsimulationoperationshasincreased.breakthrough.Forexample,thecombinedworkoftheultra-smallVAX11-785andtheperipheralprocessorAD-10canperformreal-timesimulationoflargeandcomplexflightsystems.Intermsofsimulationsoftware,inadditiontothefurtherdevelopmentofinteractivesimulationlanguagesandmorepowerfulsimulationsoftwaresystems,anotherimportanttrendistocombinesimulationtechnologyandartificialintelligencetoproducesimulationsoftwarewithexpertsystemfunctions.Thescaleandcomplexityofsimulationmodelsandexperimentalsystemsareconstantlyincreasing.Researchontheireffectivenessandconfidencewillbecomeveryimportant.Atthesametime,theestablishmentofapplicablebenchmarkstoevaluatethesystemhasalsoreceivedincreasingattention.
Въведениеtosimulationsoftware
SimuWorks®isdesignedforlarge-scalescientificcalculations,complexsystemdynamiccharacteristicsmodelingresearch,processsimulationtraining,systemoptimizationdesignanddebugging,faultdiagnosisandexpertsystems,etc.Provideauniversal,integrated,whole-processsupport,developmentandoperationsupportplatformbasedonamicrocomputerenvironment.Thesoftwareadoptsdynamicmemorymachinecodegenerationtechnology,distributedreal-timedatabasetechnologyandobject-orientedgraphicalmodelingmethods,andisattheleadingdomesticlevelinthefieldofsimulation.Itismainlyusedintheresearchfieldsofenergy,electricpower,chemicalindustry,aerospace,nationaldefenseandmilitary,economics,etc.Itcanbeusedforscientificresearchinscientificresearchinstitutesandpracticalengineeringprojects.
1.Съставът на SimuWorks®
Продуктите на платформата SimuWorks включват главно
1. Платформата за поддръжка на симулация SimuEngine (ранната версия е Vcs3, SE2000)
2,graphicalmodelingtoolsSimuBuilder(earlyversionsTHAms,FigAms),includingmoduleresourcemanagerSimuManager
3,moduleresourcelibrarySimuLib(включително:контрол,електричество,топлоенергия,поточна мрежа,електрическа мрежа)
4,Embeddedreal-timeoperatingsystemsimulationplatformSimuERT
5, Симулация на графична система в реално време SimuMMI
2.Основните характеристики на SimuWorks®
1.Theuseofdynamicmemorymachinecodegenerationtechnology,combinedwithdistributedreal-timedatabase,provideshigh-efficiencyfordistributedcomputingandreal-timesimulationofcomplexsystemsinamicrocomputerenvironment
2.Theobject-orientedgraphicalmodelingmethodisadoptedtoprovideageneralmodeldevelopmentenvironmentforsimulationscientificresearchandengineeringpracticeindifferentfields.
3.SimuWorksintegratesvariousfunctionsrequiredforsystemsimulation,formingawholesetofpipelinesfromdevelopment,debugging,verification,tooperation,analysis,etc.,creatinga"systemsimulationpipelinedevelopmentThenewconceptof"factory"greatlyimprovesthedevelopmentefficiencyofsimulationengineeringprojects;
4.Inlarge-scalereal-timesimulationsystems,ordinarycommercialdatabasescannotmeetthereal-timerequirements.TheSimuEnginesimulationengineinSimuWorksprovidesAhigh-speednetworkreal-timedatabasecanrealizedistributedcalculationofmultiplemodels,dynamicdatadisplayandonlinedatamodification,andcanmeettheneedsofthedevelopmentandoperationoflarge-scalereal-timesimulationsystems.
3. Работният поток на SimuWorks®
● Работният процес на използване на SimuWorks за разработка на симулация е:
●За системата потребителите могат да използват Simu Manager за разширяване на предоставените професионални модули и някои общи модули;
●IntheSimuBuilderenvironment,usethemodulesprovidedbythesystemandthemodulesdevelopedbytheuser.Accordingtothecompositionofthesimulationobjects,usegraphicsCombinemodulesinawaytobuildasimulationsystem;
●WithSimuEngine’ssimulationsupport,useSimuBuildertodebugthebuiltsimulationsystemuntilastablefinalproductisformed;
●Накрая, продуктът разчита само на Simu Engine, който не се използва за задачи като научни изследвания и обучение.