Siemens Simcenter 3D Low Frequency EM 2019.2 低頻電磁工具
Simcenter3DLowFrequencyElectromagnetics（低頻電磁學）是Simcenter3DElectromagnetics的一部分，它還包括高頻電磁學。

Simcenter3DLowFrequencyEM提供對機電和能量轉換設備性能的深入瞭解。這些包括公用事業和電子變壓器、電動機、發電機、線性機器（例如磁懸浮）、執行器、振動器、揚聲器、螺線管、繼電器、斷路器、感應加熱、母線、繞組系統、點火線圈等。

它基於SimcenterMAGNET，建立在幾十年的專業知識基礎之上。此外，它還利用了多學科CAE功能，以及以幾何為中心的功能，以及基於NX基礎的Simcenter3D的CAD建模。現在讓我們看看它的一些功能。

SiemensDigitalIndustriesSoftwareannouncesthelatestversion,2019.2,ofSimcenter3Dsoftware,withmajorenhancementsforlow-andhigh-frequencyelectromagneticsolutionstohelpaccelerateelectromagneticssimulationprocesses.

IntroducingSimcenter3DLowFrequencyElectromagnetics2019.2

Simcenter3DLowFrequencyElectromagnetics(LowFrequencyEM)ispartofSimcenter3DElectromagnetics,whichalsoincludeshighfrequencyElectromagnetics.

Simcenter3DLowFrequencyEMoffersinsightintotheperformanceofelectromechanicalandenergyconversiondevices.Theseincludeutilityandelectronictransformers,motors,generators,linearmachines(e.g.maglev),actuators,shakers,speakers,solenoids,relays,circuitbreakers,inductionheating,busbars,windingsystems,ignitioncoils,etc.

ItisbasedonSimcenterMAGNETthatisbuiltonseveraldecadesofexpertise.Inaddition,itleveragesthemultidisciplineCAEcapabilities,andbeinggeometry-centric,leveragesaswell,theCADmodelingofSimcenter3D,whichisbuilt-ontheNXfoundation.Letusnowlookatsomeofitscapabilities.

ExtendingMultidisciplineAnalysis

TheembeddingofSimcenterMAGNETinSimcenter3Dextendsthelatteranalysis.

Figure1:Simcenter3DCADmodelinginterfacecapabilitiestocoverlow-frequencyEMperformanceinadditiontothehigh-frequencyEM,NVH,structuralintegrity,durability,andthermalmodelingdisciplinesinoneplatform,fromthesamemodel.

Thiswillpermittheholisticanalysisofelectromechanicalandenergyconversiondevices.Thespecificbenefitsinclude:

-LeveragingSimcenter3DCADcapabilitiestoeliminateCADbottlenecks,bysupportingtheimportofanyCADformat,modelingofcomplexdevices,defeaturing,trackingofmodifications,etc.
-Supportformultipledisciplinesinoneintegratedplatform.

AnalysisandSolutionTypes

Simcenter3DLowFrequencyEMsupportsboth2D(translationalandaxisymmetric)and3Delectromagneticanalyses,whosesolutiontypecanbestatic,harmonicandtransientwithmotioncapability.Ithasanintegrated1Dcircuittoolthatsupportsthecustomizationofcurrentandvoltagesources.ItsextensiveEMmateriallibraryeasestheinitialEMmodelsetup.Thematerialsarecustomizabletoaccountforvariationinpropertiesresultinginrealisticsimulations.

Theseelectromagneticandthermalanalysismodulescansimulatesteady-stateandtransientelectromagneticandtemperaturefields.Someoftheresultinguserbenefitsare:

-Supportforlinear,rotary,6degreesoffreedommotionandmultiplemovingparts,supportingthesimulationofcomplexmotionlikemagneticlevitation,EMcatapults,androboticjoints.
-IncreasingtheefficiencyandreliabilityofelectromechanicaldevicesbyaccuratelyconsideringboththeEMandthermalaspects.
-Validatingmodelsatextremeoperatingandfaultconditionsforreliabilityanalysis(torque,efficiency,demagnetization,temperaturehotspots,etc).
-Fastsolves,thatareadaptedandoptimizedforapplications,e.g.,transformeranalysisthatusesthetime-harmonicsolverandunarybinaryconditionsmeanttoreducethesolvingtime.

SmartBoundaryConditions

Largemodelslikepowertransformers,windandhydrogeneratorsandheavyindustrymotors,arenotonlylargebuthaveverythinpartsrelativetothemodel’ssize.This

Figure2:Unary(SIBC)andbinaryboundaryconditionsappliedtoapartialtransformermodellikelyresultsinlargesimulationmodels.Inadditiontostructuredmeshing,SimcenterLowFrequencyEMoffersbinaryandunaryboundaryconditions.Unaryboundariesnegatetheneedforavolumemesh,whichsignificantlyreducesthesolutiontime.Anexampleisthesurfaceimpedanceboundarycondition(SIBC)thatisappliedtoconductivepermeableparts,likethetransformertank,clamps,andothermechanicalsupportstructures.Binaryboundaryconditionspermittheuseofpartialmodels.

AdvancedMaterialModelling

Theconfidenceoflow-frequencyEMsimulationsisinfluencedbymaterialmodeling.Corenonli

Figure3:DemagnetizationfieldsinaPMtractionmotornearities,temperaturedependencies,demagnetizationofpermanentmagnets,anisotropicandhysteresiscoreeffects,conductoreddy-currentsandproximityeffects,shouldbetakenintoaccountdependingonthestudytobalancetheneedforaccuracyandspeed.Besidestheconfidenceintheresults,thiscapabilitycanbeleveragedfor:

-Assessingtheriskofdemagnetizationofpermanentmagnetstoensurerobustnessatpeakorfaultconditions,atelevatedtemperaturesparticularforEV/HEVtractionPMmotors.
-Analysisoffrequency-dependentlossesinwindingsystemssuchasutilityandelectronic
-Nonlinearitycoreapproximationinthetime-harmonicsolverthatisinherentlylinearfortransformeranalysis.
-Theconsiderationofhysteresislossduringsolvingiscriticalforapplicationswhereenergybalanceisimportantlikeinsmalldeviceslikemicro,MEMs,sensorsandactuators.

Therefore,electromechanicalandenergyconversiondevicesperformanceandreliabilitycanbeensuredbyleveragingthemultidisciplineCAEcapabilitiesofSimcenter3D,whichnowincludesbothlowandhighfrequencyelectromagnetics.

Simcenter3DLowFrequencyEMisdesignedforsolvinglowfrequencyelectromagnetic(EM)problemsthatcaninvolvestaticmagneticfields,time-varyingfieldsandeddy-currents,andtransientconditionswithmotionofpartsofthedevice.Inadditiontotheseanalyses,anoptionisavailableforprovidingstaticortransientcoupledthermalsolutionsofEMproblems.Manydevicescanberepresentedverywellby2Dmodels,withasubstantialsavingincomputingresourcesandsolutiontime.

Simcenter3DLowFrequencyEMprovidesa“virtuallaboratory”inwhichausercancreatemodelsfrommagneticmaterialsandcoils,viewdisplaysintheformoffieldplotsandgraphs,andgetnumericalvaluesforquantitiessuchasfluxlinkageandforce.

AfeatureofSimcenter3DLowFrequencyEMisitsuseofthelatestmethodsofsolvingthefieldequationsandcalculatingquantitiessuchasforceandtorque.Togetreliableresults,theuserdoesnotneedtobeanexpertinelectromagnetictheoryornumericalanalysis.Nevertheless,theuserdoesneedtobeawareofthefactorsthatgoverntheaccuracyofthesolution.

SiemensSimcenter3DElectromagneticsSolutions,HighFrequency,LowFrequency

SiemensDigitalIndustriesSoftwareisaleadingglobalproviderofsoftwaresolutionstodrivethedigitaltransformationofindustry,creatingnewopportunitiesformanufacturerstorealizeinnovation.WithheadquartersinPlano,Texas,andover140,000customersworldwide,SiemensDigitalIndustriesSoftwareworkswithcompaniesofallsizestotransformthewayideascometolife,thewayproductsarerealized,andthewayproductsandassetsinoperationareusedandunderstood.

Product:SiemensSimcenter3DLowFrequencyElectromagnetics
Version:2019.2withTutorials
SupportedArchitectures:x64
WebsiteHomePage:http://www.plm.automation.siemens.com
Language:english
SoftwarePrerequisites:SiemensNX-1872Series(1872-1892)withmoduleSimcenter3D