v14.0 LF Electromagnetics Update aadnd HF … ANSYS Workbench R14 Highlights • Co‐simulation with RBD • Push‐Back excitations for EMI/EMC (to SIwaveand HFSS) • Co‐simulation

v14.0 LF Electromagnetics Update and HF Introductiona d oduc o

Mark ChristiniANSYS, Inc

© 2011 ANSYS, Inc. September 12, 2011

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SimplorerANSYS Workbench R14 HighlightsSimplorer

• Co‐simulation with RBD

• Push‐Back excitations for EMI/EMC (to SIwave and HFSS)

• Co‐simulation with Fluent (Beta feature)

• Improvements in IGBT characterization tool

Maxwell

• Parallelization of Maxwell 3D non‐transient solvers

• 2‐way thermal link with Fluent (Beta feature)

• Deformed mesh support for 2‐way stress link

• Nonlinear permanent magnets characteristic temperature dependency

• 3D Edd C t hi h d l t• 3D‐Eddy Current high order elements

• Nonlinear anisotropic and lamination materials in Maxwell2D

• 64‐bit UI

Q3DQ3D

• Magnetic materials capability

RMxprt

• Axial flux permanent magnet machine


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• Axial‐flux permanent magnet machine

• Setup capability for Interior permanent magnet machines

• Setup capability for Solid‐rotor induction motors

IntroductionIntroduction‐

Electromechanical PerspectiveElectromechanical Perspective


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4© 2010 ANSYS, Inc. All rights reserved. ANSYS, Inc. Proprietary

Introduction: Electromechanical Perspective

ANSYS has a comprehensive portfolio of simulation packages. Our goal is to provide tools that enable Electric Engineers to solve their problems in theprovide tools that enable Electric Engineers to solve their problems in the most efficient way

ANSYS focus:

‐ Developing cutting‐edge technology solving real world problems faster

‐ Enabling couplings between 3D physics solvers where it is relevant

L i th hi h fid lit f 3D i l ti i t th “0D” t‐ Leveraging the high‐fidelity of 3D simulations into the “0D” system simulation design


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Maxwell Design Flow – Field Coupling

ANSYS CFDFluent

RMxprtMotor Design

2 /3

g

Maxwell 2-D/3-DElectromagnetic ComponentsHFSS

PExprtANSYS

MechanicalThermal/Stress

pMagnetics


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Field Solution

Model Generation

Simplorer Design Flow – System Coupling

SimplorerSystem Design

ANSYS CFD Icepack/Fluent RMxprt

M t D i

PP := 6

ICA:

A

A

A

GAIN

A

A

A

GAIN

A

JPMSYNCIA

IB

IC

Torque JPMSYNCIA

IB

IC

TorqueD2D

Motor Design

HFSS, Q3D, SIwave

PExprtp tMagnetics

Maxwell 2-D/3-DElectromagnetic Components

ANSYS MechanicalThermal/Stress

Model order Reduction


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Co-simulation

Push-Back Excitation

SimplorerSimplorer

Multi‐Domain Circuit and System Simulation Package


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Simplorer ‐ Overview

• Multi-domain, system simulator for designing high performance systems R1 R2 R3 R450 1k 1k

50C2

Circuits

g p y

• Three Basic Simulation Engines: Circuits, Block Diagrams, State Machines

• Mixed Signal Mixed Mode Modeling

12

50C1 C2

3.3u3.3u

V0 := 5 V0 := 0

N0005

N0003N0004

N0002

• Mixed Signal – Mixed Mode Modeling

• Digital / Analog

• Magnetic, Mechanical, Thermal … CONSTI

I_PART_id

UL := 9

Block Diagrams

• Integrated analysis with electromagnetic simulation tools (Maxwell, PExprt, RMxprt, Q3D)

• Analysis Types: AC DC Transient

SUM2_6

id_ref

G(s)

GS2

GAINid

LIMIT

yd

LL := -9

GAIN

P_PART_id

KP := 0.76

State MachinesAnalysis Types: AC, DC, Transient

• Co-simulation with Maxwell and Simulink

• Statistical Analysis and Optimization IMP = 0

IMP = 1IMP = 0IMP = 1

IMP = 0 and RLine.I <= ILOW

IMP = 0 and RLine.I >= IUP

SET: CS1:=-1SET: CS2:=-1SET: CS3:=-1SET: CS4:=-1

SET: CS1:=-1SET: CS2:=1SET: CS3:=-1SET: CS4:=-1


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• VHDL-AMS CapabilityIMP = 1 and RLine.I >= IUP

IMP = 1 and RLine.I <= ILOWSET: CS1:=1SET: CS2:=-1SET: CS3:=-1SET: CS4:=-1

SET: CS1:=-1SET: CS2:=-1SET: CS3:=-1SET: CS4:=-1

Cosimulation with Rigid Body DynamicLanding Gear Application

Position vs ForceLanding Gear Application

Hydraulic Circuit

Piston Position


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Simplorer‐Fluent Cosimulation

Typical Application: Battery Cooling

Transient co‐simulation for non‐linear CFD models

Typical Application: Battery Cooling

Design Flow:

– Fluent User• Creates Fluent design

• Creates Boundary Conditions (defining Parameters) for cosimulation interface

– Simplorer User• Uses UI to connect to Fluent design: Schematic component and Pins are created automatically

• Wires up the rest of the schematic

• Sets up the Transient Analysis and Simulates

– Simulation results available in both Simplorer and Fluent


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Cosimulation Example: Battery Cooling

Single battery cell

Inputs: Inlet Flow Rate (Kg/s) and Heat Source(W/m3)

Output: Outlet Temperature (K)

InletBattery Element

Outlet

y(HeatSource)

Outlet


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Simulation Results: No Control

Flow Rate

Heat SourceTemperature Change

@250 Sec @1200 Sec

0.01 400k 37.9155 64.8926

800k 75.8207 129.787

0.02 400k 29.7525 39.201

800k 59.4059 78.402


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Results verified with Fluent aloneNon‐linear dependency on Flow Rate

Simulation Results: Linear Controls


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Simulation Results: Non‐linear Control

Fluent Control Co‐Simulation

Flow is adjusted to maintain constant


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maintain constanttemperature

IGBT Characterization

• Accurate models of the semiconductorsare needed to achieve a good circuitare needed to achieve a good circuit simulation

• Simplorer offers a parameterization toolfor IGBTsfor IGBTs

• The user can import the data from the datasheet and created an accurate IGBT modelmodel

2500.00

3000.00

10.00

15.00

40.00

50.00Ansoft Corporation Simplorer1switch_on

2500.00

3000.00

10.00

15.00

40.00

50.00Ansoft Corporation Simplorer1switch_on

1000.00

1500.00

2000.00

U1.

VC

E

-5.00

0.00

5.00

VM

2.V

[V]

10.00

20.00

30.00

R2.

I [A

]

Curve InfoU1.VCE

TR

1000.00

1500.00

2000.00

U1.

VC

E

-5.00

0.00

5.00

VM

2.V

[V]

10.00

20.00

30.00

R2.

I [A

]

Curve InfoU1.VCE

TR


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499.90 499.95 500.00 500.05 500.10 500.15 500.20 500.25 500.30Time [us]

0.00

500.00

-15.00

-10.00

-10.00

0.00VM2.V

TRR2.I

TR

499.90 499.95 500.00 500.05 500.10 500.15 500.20 500.25 500.30Time [us]

0.00

500.00

-15.00

-10.00

-10.00

0.00VM2.V

TRR2.I

TR

IGBT Characterization Improvements

It is possible to customize test circuits in the characterization tool:Every Manufacturer uses different measurement Criteria on their datasheetsEvery Manufacturer uses different measurement Criteria on their datasheets

More optimization and extraction settings have been added


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Push‐Back Excitation for EMC/EMI

Push excitations to SIwave and HFSS: Allows feedback of transient simulation results in form of excitations for 3D FEAresults in form of excitations for 3D FEA

State Space Model

Excitation data


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Radiated Fields can now be calculated based on actual conductive mode analysisBoth conductive and radiative analysis EMC/EMI can be performed

SIwave and HFSS Flow

1 Export an equivalent circuit model for the SIwave design as a Simplorer SML netlist

2 Import the SML netlist as a s b circ it2 Import the SML netlist as a sub circuit

• Perform a transient analysis

• Right click to push excitation UI.

3 UI converts time domain signal to frequency domain3 UI converts time domain signal to frequency domain

• Excitation files get writtenExcitation files get written– Voltage and current for each

frequency and port• Import files back to SIwave

l


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– External source excitations

MaxwellMaxwell

2D/3D Finite Element Low Frequency Electromagnetics/ q y g


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Maxwell Overview

• Solves 2D and 3D electromagnetic field problems using FEA

• Five Solution Types: Electrostatic, Magnetostatic, Eddy Current, Transient Electric, Transient Magnetic

• Linear and non-linear, isotropic and anisotropic, and laminated materials

Determines R L C forces torques• Determines R,L,C, forces, torques, losses, saturation, time-induced effects

• Parametric and Optimization capabilities

• Co-simulation with Simplorer

• Direct link from RMxprt


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• Direct link to ANSYS Mechanical

Full Parallelization of 3D non‐transient solvers

Magnetostatic solver:f d– Parameter extractions for inductance

– Energy computation for post processing in field solver

Eddy current solver:– Power loss and stress computation for post processing

– Energy computation for post processing in field solver


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Full Parallelization of 3D non‐transient solvers

OpenMP is used to speed up the field solver using different cores sharing same memory

64‐bit XP @ 2.67 GHz 12GB of RAM

3D Magnetostatic Problem‐ Adaptive Analysis with 6 iterative steps (energy error = 0.03%)‐ 606,758 tetrahedra

150

Real Time Computation

‐ 817,274 matrix

100

150

[min.]

50

Time [


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0

1‐CPU 2‐CPU 4‐CPU 6‐CPU 8‐CPU

3D Eddy Current High Order Elements

Goal: Improve accuracy for current density field (J)

‐ J field is derived quantity from T‐Ω formulationJ field is derived quantity from T Ω formulation

‐ Higher order elements gives first order approximation for currents


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First order approximation for currents

Zero order approximation for currents

3D Eddy Current High Order Elements

C ilCoil

Mesh on the plate

Plate


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Induced eddy current Zero order vector shape functions

Induced eddy currentFirst order vector shape functions

Core Loss in Eddy‐Current Solver

Steel and Power Ferrite Core loss available

Core loss evaluation in linear mode without a transient analysis

Typical Application: Ferrite Electronic Transformer


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Core Loss in Eddy‐Current Solver

Enter Core Loss coefficient as in Transient

Disable Eddy Current calculation as Core Loss contains Eddy Loss


27Ferrite Core

Core loss in Eddy‐Current Solver

Maxwell 3D results: 0.85 W

Formula used:

Validation with hand calculation:

• Core volume = 1.29e‐6 [m^3], frequency= 100KHz

• B ~ 0.2 Tesla

• L 1 29 6 * 11 * (100 000)^1 3 * (0 2)^2 5 0 8 W• Loss = 1.29e‐6 * 11 * (100,000)^1.3 * (0.2)^2.5 = 0.8 W

The core‐loss can be numerically validated using the 3D magnetic transient solver


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The core loss can be numerically validated using the 3D magnetic transient solveremploying linear BH characteristic

Maxwell Integration in Workbench

What was already possible in R13:• Two way thermal coupling with ANSYS Mechanical• Two‐way thermal coupling with ANSYS Mechanical (Static and Transient)

• One‐way force coupling with ANSYS Mechanical (Static and Transient)and Transient)

• One‐way thermal coupling with Fluent through UDF

• Use Design Explorer within WB

idi i l i i• Unidirectional CAD integration


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Maxwell – ANSYS Stress Coupling

Two way coupling non‐transient solvers and ANSYS stress solver is possible in R14is possible in R14

Approach:• The Force distribution is transferred as load into ANSYS MechanicalThe Force distribution is transferred as load into ANSYS Mechanical

• The node displacement information is sent back to Maxwell as deformed mesh

Maxwell ANSYS Mechanical

Force Distribution

Deformed Mesh


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Example: Air inductor


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B Field Force Distribution

MagneticForcesForces

Stress CalculationField Calculation

DisplacementsUpdated Mesh

Displacementsof mesh nodes


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Maxwell – Fluent Two‐Way Coupling

Approach:• The Loss distribution is transferred as load into Fluent

• The Temperature distribution is sent back to Maxwell

Maxwell ANSYS Fluent

Loss Distribution

Temperature


33

p

Maxwell – Fluent Two‐Way Coupling

Example: Busbars – Electrical, Thermal, Structural

Deformation

Loss Distribution Temperature


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2‐way

PM Temperature Dependent Model

Maxwell 2D/3D can account for Permanent Magnet temperature dependency. The law works directly on intrinsic BiH curve with

fl d i B d i i i i i Hremanent flux density Br and intrinsic coercivity Hci

HBB i 0The Two temperature dependent parameters are remanent flux

density Br and intrinsic coercivity Hci

B and H can be described by second order polynomials asBr and Hci can be described by second order polynomials as

)()(1)()( 02

02010 TPTBTTTTTBTB rrr

)()( 1)()( 02

02010 TQTHTTTTTHTH cicici

where T0 is the reference temperature, and α1, α2, β1 and β2 are coefficients which are provided in supplier datasheets

)()()()( 002010 Qcicici


35


Copied from vendor datasheet

Derived based on the temperature dependent demagnetization model


36


Coercivity (Hc)

FluxDensity

C i it h h d i i ibl


37

Coercivity change shows dynamic irreversible demagnetization during a transient process in one element

Performance Enhancements in 2D Transient Post ProcessingProcessing

• 4096 variations, with 200 time step per variation

• Update and open 2 XY reports• Update and open 2 XY reports

Without Cache With Cache

R13 3 hrs 30 mins 10 mins

R14 32 mins 5 mins 20 secs

Speed up 7X 2X


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Speed up 7X 2X

RMxprt

Analytical Sizing package for Electrical Machine Design


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RMxprt ‐ Overview

• Analytical Design Software for Electric Machines

• User can calculate machine performance, make material and size decisionsp ,

• Flexible design and optimization process for rotating electric machines which perform hundreds of "what if" analyses in a matter of seconds

• Machine Types• Machine Types

• Induction Machines : Three-Phase, Single-Phase

• Synchronous Machines : Line-Start PM, Adjustable Speed PM, Salient Pole, Non-Salient Pole

• Brush commutated: DC, Permanent Magnet DC, Universal, Claw-pole Alternator


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• Electronically commutated: Brushless PM, Switched Reluctance

Integrated Motor Solutions

• RMxprt automatic setup with one‐click for Maxwell 2D and 3D Solution• Minimum solving region creation with matching boundary setup • Motion and mechanical setup• Material setup including core loss and lamination• Winding and source setup with drive circuit• Auto‐create Simplorer design


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RMxprt – Interior Permanent MagnetMachinesMachines

RMxprt can set up the Maxwell 2D/3D project for IPM Machines• Multi duct layers supported• Multi duct layers supported

• No analytical solution provided yet


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RMxprt – Axial Flux Machine

New machine topology: Axial Flux Machine• AC or PM Rotor• AC or PM Rotor

• Single or Double Side Stator

• Maxwell 3D auto‐setup

• No analytical solution provided yet• No analytical solution provided yet


43

Q3D

Quick RLC Extractor for 2D and 3D Structures


44

Q3D Extractor ‐ Overview

• Q3D is a tool streamlined for quickly characterizing electrical parasitics (R,L,C,G) of interconnects, busbars and cablesbusbars, and cables.

• Typical Applications:• Switch Mode Power Supplies• Cables, Connectors and Busbar Modeling, g• Ground Plane Modeling• EMI Prediction in Electric Drive Systems


45

Q3D Extractor ‐ AC vs DC Resistance & Inductance

• Both R and L depend on frequency

• Q3D solves only the low and high frequency asymptotes

• Behavior in between is estimated

log R(f) L(f)

dcL

fRacdcR acL

log(f) log(f)


46

Q3D – Magnetic Materials

Q3D can handle Magnetic Materials (in the linear part of B‐H curve)

Permeability can be frequency dependent

Typical Applications:

• Transformers DesignTransformers Design

• Shielding Design

• PCB with Magnetic Core Design

• Q3D uses Boundary elements method to compute RLC parameters• Calculates partial inductance in open


47

p ploops


Inductor Example

Goal: Get R(f), L(f)

DC < f < 1 MHzDC < f < 1 MHz

Magnetic Core (µ = 500, σ= 100000)


48

Solid Copper Coil


Set up For the Coil:

• Cut a very small piece of the Coil (to have loop inductance ≈ Partial• Cut a very small piece of the Coil (to have loop inductance ≈ Partial Inductance)

• Create an active Net with Source/Sink

Set up For the Core:

• Create an active Net (no Source/Sink necessary)

Sink (Sink1)Sink (Sink1)

S


49

Source (Coil_in)


Using Maxwell:

• FEM Need to mesh to account for skin depth at each frequency• FEM ‐ Need to mesh to account for skin depth at each frequency

• Can lead to huge mesh for higher frequencies as skin depth decreases but gives best accuracy in transition region

T M i l i h f ( f Fi ld f R L)• Two Matrix solutions at each frequency (one for Fields, one for R, L)

Using Q3D:g Q

• BEM – Surface mesh only

• Only 1 resolution for DC, 1 resolution for AC

• Rest of the spectrum determined by blended algorithm• Rest of the spectrum determined by blended algorithm

• No need to mesh for skin depth

• Easier setup but may not give best accuracy in transition region


50


Q3D AC 10 s Maxwell 50 min

Q3D DCQ3D DC 6min 30 s

Sweep 2 s

(regardless of # of Freqs) (4 Freq <1MHz)

Total Solution Time < 7 min 50 min Simulation Time

Q3DDesign2XY Plot 1 Q3DDesign2XY Plot 1

Peak RAM 0.6 Gb 5 Gb

Each Additional Freq 15 min Q3D

45.00

50.00

55.00

oil:C

oil_

in) [

nH]

Q3DDesign2XY Plot 1 ANSOFT

Curve InfoACL(Coil:Coil_in,Coil:Coil_in)

Setup1 : Sw eep2

45.00

50.00

55.00

oil:C

oil_

in) [

nH]

Q3DDesign2XY Plot 1 ANSOFT

Curve InfoACL(Coil:Coil_in,Coil:Coil_in)

Setup1 : Sw eep2

M ll

30.00

35.00

40.00

ACL(

Coi

l:Coi

l_in

,Co

30.00

35.00

40.00

ACL(

Coi

l:Coi

l_in

,CoMaxwell


51

0.00 0.01 0.10 1.00 10.00 100.00Freq [MHz]

25.00 0.00 0.01 0.10 1.00 10.00 100.00

Freq [MHz]

25.00

L(f) HFSS

Q3D – New Features

Circuit Export:

• Q3D can export frequency dependent models to Simplorer

• Q3D l t R L t ifi f i th d t th• Q3D can also export R, L at a specific frequency in the sweep and export the SPICE netlist or the Simplorer circuit

• The feature has been extended to 2D Extractor


52

Q3D ‐ 3D Modeler Enhancements

View customization

• Z-stretch• 64‐bit user interface


53

This enhancement is available to all EBU ‐ 3D products

Geometry and User Interface


54

Ansoft to ANSYS Geometry Transfer

• Possible import DesignModeler geometry directly into Ansoft products

• Geometry and material assignment transfer from Ansoftsystems to ANSYS systems

• Further geometry edits are possible in DM if user has license


55

Multiple Geometry Links

Possible to inport geometry from multiple upstream sources• Source can be any of CAD, DesignModeler or Ansoft products• Creates UDM for each geometry input• Creates UDM for each geometry input


56

Ansoft HPC Enhancements: Fixed VariablesApplications• UDPs

– Improves post processing speed because the user can select which variables will actually be indexed for sweeping

Wave Winding UDP

be indexed for sweeping– Previously all variables were selected for

indexing even if they are were not being swept

– Applies to all Desktop products

Desktop supports fixed variables• Solution database is NOT indexed by these variables

• User will not sweep themp• Any change to these variables invalidate existing solutions

Benefits• F t t l ti d t b• Faster access to solution database– Faster post‐processing

• Improved reporter‐dialog response– No sluggishness


57

gg

CAD Integration on WB Improvements

Added support for parametric analysis and DSO of CAD parameters


58

Reliability Engineering Design ‐ DOE

Distribute parametric studies across available hardware to expedite design

i i iIdentify key design parameters

optimization

Identify variation of performance with respect to variations of parameters


59

Reliability Engineering Design – Six Sigma

Input parameters vary!A product has Six Sigma quality if only 3.4 parts out of every 1 million manufactured fail

Output parameters

How performance will vary ith d i t l ?

how many parts will likely fail?

which inputs require the greatest control?


60

with design tolerances? likely fail? the greatest control?

Reliability Engineering DesignSurface Response AnalysisSurface Response Analysis


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Maxwell‐ANSYS Structural and Maxwell ‐ANSYS Thermal Field Mapping coupling capabilities available in R14Field Mapping coupling capabilities available in R14

Maxwell 2D/3D ANSYS Static/Transient StructuralTwo‐Way Link

ANSYS Static/Transient StructuralOne‐Way Link (Maxwell upstream)y y ( p )

Electrostatic

Magnetostatic

ddEddy Current

Magnetic Transient

Electric Transient

Maxwell 2D/3D ANSYS Static/Transient ThermalTwo‐Way Link

ANSYS Static/Transient ThermalOne‐Way Link (Maxwell upstream)

El t t tiElectrostatic

Magnetostatic

Eddy Current


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Magnetic Transient

Electric Transient

Maxwell‐Fluent Field Mapping coupling capabilities available in R14Field Mapping coupling capabilities available in R14

Maxwell 2D/3D Fluent Steady State Fluent TransientMaxwell 2D/3D Fluent Steady State(Thermal link)Two‐Way Link

Fluent Transient(Thermal link)

One‐Way Link (Maxwell upstream)

Electrostatic

Magnetostatic

Eddy Current

M ti T i tMagnetic Transient

Electric Transient


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Simplorer System Coupling capabilities available in R14

Solver Reduce Order Equivalent Co‐Simulation Push BackModel

qCircuit/Matrices/Look‐Up Tables

Excitation

Maxwell 2D/3DElectrostaticMagnetostatic

Maxwell 2D/3Ddd CEddy Current

Maxwell 2D/3DTransient

Q3D

HFSS, SIwave

RMxprt, PExprt


64

Simplorer system coupling capabilities available in R14

Solver Reduce Order Equivalent Co‐Simulation Push BackModel

qCircuit/Matrices/Look‐Up Tables

Excitation

Fluent Transient

Icepak

ANSYS Mechanical(Modal)

ANSYS RBD

SimulinkSimulink

ModelSim

Mathcad


65

High Frequency Introduction


66

SI Wave ‐ Overview

Full‐wave Printed Circuit Board and IC Package Solver

• Unique Field Solver Based on Finite Element MethodUnique Field Solver Based on Finite Element Methodcoupled with transmission lines

• Handles more compexity than HFSS due to 2D scalar solution

• Computes electrical behavior of high frequency and• Computes electrical behavior of high‐frequency and high‐speed PCBs and BGAs

• Extracts S‐, Y‐, and Z‐parameters• Provides electromagnetic fields

Circuit Board Resonances


67

Model Extraction for Complex Memory Interface

Ansoft Designer ‐ Overview

Ansoft Designer• Design Desktop Environment for System‐Design Desktop Environment for SystemLevel Electronics– Design framework with schematic, layout, and post‐processing

– Links to EM field solvers and Circuit Simulation

Nexxim• Advanced Circuit Solver– Transient, Harmonic Balance, and Statistical Eye Simulation


68

HFSS ‐ Overview

Full‐wave 3D electromagnetic field solver• Computes electromagnetic behavior of high‐p g gfrequency and high‐speed components and systems

• Extracts S‐, Y‐, and Z‐parameters• Provides 3D electromagnetic fields• Provides 3D electromagnetic fields

Simulation of RFIC in Package


69

Antenna on UAV4-port microwave comparitor

Cavity Filter on cell phone tower

HFSS ‐ Down Hole Sensors

Predicting sensor behavior in difficult conditions is more

C il t it d i i l

gconvenient with virtual simulation environments.

Coils transmit and receive signals that vary based on position


70

Oil


Rigorous FEM simulation allows myriad Rigorous FEM simulation allows myriad parametric simulations for the important design variablesvariables

MandrelB h l Borehole

Invasion AnisotropyAnisotropy Eccentricity Antenna Tilt


71


Simulation provides accurate calibration data for logs

7.00

8.00Ansoft Corporation HFSSDesign1XY Plot 1

Curve Info

d_mag_importedImported

d_mag

Vary Eccentricity RX Amplitude Ratio

d 0 0005 S/

p g

4.00

5.00

6.00

7.00Y1

Setup1 : LastAdaptiveFreq='0.002GHz'

Dot = LiteratureLine = Ansys

mud = 0.0005 S/m

V Di A l &0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00

dy [in]2.00

3.00

2.80Ansoft LLC 1_HFSSDesign1XY Plot 4RX Amplitude Ratiomandrel offset Formation = 1 S/m

Dip angle

Vary Dip Angle & Displacement

2.20

2.40

2.60

2.80

litud

e R

atio

Curve Info

Colored = HFSSGreen = Maxwell

formation = 10 S/m Formation = 0.1 S/m

Mud =0.0005 S/m


72 -100.00 -80.00 -60.00 -40.00 -20.00 0.00 20.00 40.00 60.00Relative Transmitter Depth [in]

1.60

1.80

2.00

Am

p d_magSetup1 : LastAdaptivedip='0deg' Freq='0.00...

d_magSetup1 : LastAdaptivedip='20deg' Freq='0.0...

d_magSetup1 : LastAdaptivedip='45deg' Freq='0.0...

d_magIncreasing Dip Angle

Formation = 1 S/m

Sondedisplacement

Documents

v14.0 LF Electromagnetics Update aadnd HF … ANSYS Workbench R14 Highlights • Co‐simulation with RBD • Push‐Back excitations for EMI/EMC (to SIwaveand HFSS) • Co‐simulation