ANSYS Advantage Spotlight on Electronics and Electromagnetic Simulation

64 Pages·2017·11 MB·English

Excellence in Engineering Simulation
ISSUE 3 | 2017
SPOTLIGHT ON
ELECTRONICS
AND
ELECTROMAGNETIC
SIMULATION
10 Ensuring Electromagnetic
Compatibility
24 Crossed Signals
50 ANSYS Discovery Live
Particle simulation
where shapes do matter
The most powerful Discrete Element
Modeling (DEM) software.
• Multi-GPU solver
• Non-spherical particle shapes
• Fully integrated with ANSYS simulation software
• Breakage modeling
• Flexible fibers
“As a result of several years of collaboration
between the ANSYS and ESSS technical
teams, ROCKY interoperates seamlessly with
and extends ANSYS Mechanical and Fluids
software capabilities for simulations where
particle shapes and particle interactions with
both fluid flow and structural components
play an important role in the design.”
Dipankar Choudhury
Vice President, Research at ANSYS, Inc.
ROCKY-DEM.COM
EDITORIAL
ENABLING THE FUTURE FOR ELECTRONICS
As electronics become more and more pervasive in our lives and businesses,
the complexity of design increases exponentially, requiring advanced electronics
simulation to develop the reliable products we can no longer flourish without.
Electronics are everywhere! Of course, the smartphone Transforming Business and
and computer are pervasive examples in our lives, Breaking Down Barriers
but there is no shortage of electronics in automobiles, Advanced simulation is a critical driver
banking, aircraft, retail and countless other for the most pioneering companies.
applications. With the emergence of the Internet of Industry leaders adopt multiphysics
Things (IoT), even household appliances are now simulation to bridge the gap that exists
under electronic control and becoming connected. between engineering disciplines, and
As we benefit from the convenience and productivity enable the products to be designed from
that electronics provide, we become increasingly a true systems perspective. Electronic
reliant on embedded electronic systems. If those devices must perform across electrical,
systems were to fail, it would be not only inconvenient, thermal and mechanical domains.
By Lawrence Williams, it could become a business problem, a productivity Electronic systems get hot. They get
Director of Product problem and in some cases a personal safety problem. dropped. They sometimes operate in
Management Electronics, It is increasingly important to produce systems that harsh environments. Multiphysics
ANSYS are robust and reliable. Advanced simulation of simulation methods aid businesses in
electronics enables exploration of designs, not only for addressing these challenges across high-
the nominal ability to perform, but to perform reliably frequency, high-speed electronics and
over the life of the product. electromechanical systems. Adopting
a multiphysics system engineering
Modern electrical simulation delivers design challenges that benefit from approach can make the difference
digital prototyping and design simulation. The promise of millimeter- between a nominal design and a truly
exploration for electronics and electro- wave technologies will be preceded robust design.
mechanics. With simulation, engineers by extending sub-6 GHz systems to
can deliver reliable, high-performance leverage band-aggregation to obtain 5G Future Considerations
and lower-cost products that have been speeds using existing infrastructure. Future electronic product innovations will
thoroughly scrutinized so that there This requires multiple radios to operate require a platform on which engineers
are no electrical, thermal or structural simultaneously, which can lead to can simulate and design entire electrical
surprises in production or deployment. crosstalk and thermal issues that can be and electronic products while including
The most advanced simulations addressed upfront with simulation. As all the necessary physics and system
combine real physics modeling with millimeter-wave technology emerges, effects. This can include the minute
circuits and systems for high-speed, engineers will leverage simulation details of a complex integrated circuit
high-density printed circuit boards to solve sensitivity to temperature, up to a full product like an automobile.
and assemblies, antennas and wireless efficiency and circuit density Industry-leading companies rely on
systems, power conversion, and challenges. simulation, and the most advanced
electromechanical devices. The digital There will be tremendous need for engage with ANSYS to automate processes
prototype can be leveraged to establish antennas and wireless for 5G and IoT so that more engineers can leverage the
virtual compliance with design product connectivity. Electromagnetic richness of real physics. With a single
requirements and provide engineers simulation enables engineers to select, platform, electrical engineers can deliver
insight to deliver not only today’s design and integrate antennas for a faithful representation of electrical,
products but tomorrow’s even more IoT systems and environments. IoT thermal and structural performance,
automated, mobile and innovative suppliers will require more integrated while sharing models with mechanical
inventions. and programmable subsystems engineers for even more rigorous
to streamline adoption for system examination.
Our Wireless World integrators, and making solutions This issue of ANSYS Advantage
5G connectivity promises a faster, easier to adopt is key. Simulation with demonstrates some remarkable advances
more robust mobile computing automated design flows, accelerates in electromagnetic field simulation that
experience for everyone. These adoption of simulation within can help you drive design innovation.
applications have particularly strong organizations.
© 2017 ANSYS, INC. ANSYS ADVANTAGE 1
Table of
Contents
Spotlight on Electronics and Electromagnetic Simulation
24
4 18
SIGNAL INTEGRITY
BEST PRACTICES SECURITY AND DEFENSE Crossed Signals
Driving Innovation Enhanced Detection of
Engineers reduced the time required to
with Electronics Concealed Weapons perform signal integrity analysis of a
Leading electronics companies To develop next-generation full-body high-speed printed circuit.
leverage engineering simulation to millimeter-wave airport scanners,
reduce energy consumption, avoid researchers used simulation
interference with other devices and to reduce design exploration times.
27
decrease development time.
SIGNAL INTEGRITY
A Via Runs Through It
10
When unexpected crosstalk originated
in the BGA vias for a memory board,
EMI/EMC
engineers tackled the problem
Ensuring
with simulation.
Electromagnetic
Compatibility 21
Combining full-wave frequency
RF AND WIRELESS 30
domain with circuit simulation,
STMicroelectronics determined Ensuring Antenna
RF AND WIRELESS
electromagnetic interference/ Performance in Complex
Tuning in to Antenna
electromagnetic compatibility and
Wireless Environments
electromagnetic coexistence issues Design
before physical prototyping. By determining where interference
Using engineering simulation, big
is likely to occur early in the
compute and 3-D printing, Optisys
development cycle, companies can
achieves orders-of-magnitude reduction
decrease the costs to remediate
in antenna size and weight while
problems later and reduce risk.
reducing development time.
ABOUT THE COVER
This issue of ANSYS Advantage
demonstrates some remarkable
14
advances in electronic and
HIGH-SPEED ELECTRONICS electromagnetic field simulation
Deep Channel Analysis that can help drive design
for High-Speed innovation.
Interconnect Solutions
Engineers leverage simulation to
design and optimize next-generation,
high-performance interconnect Credit: RUSSELL KIGHTLEY/SCIENCE PHOTO LIBRARY
solutions across the entire
signal channel.
2 ANSYS ADVANTAGE ISSUE 3 | 2017
34 54
RF AND WIRELESS SOLUTIONS
Inside Story Meaningful Results
Engineers develop new ways to install Employing ANSYS EnSight, an asphalt
antennas on aircraft to save fuel. company brings meaning to simulation
data by combining results from
different simulation tools and different
46 design alternatives.
Simulation@Work
ELECTRIFICATION
Engineering E-Motors
57
38 Creating an optimal custom engine for
hybrid and electric vehicles requires BEST PRACTICES
AUTOMOTIVE that electronic and mechanical Getting on Board
Fuel Injection: components are designed and tested
with Vias
Breaking Up is Hard to Do together as a system.
The signal integrity engineer can use
Delphi engineers design a fuel injector
simulation to verify that frequency- and
nozzle to deliver droplets in a spray
time-domain performance will meet the
pattern to optimize engine performance. Departments design requirements.
42 50 60
AEROSPACE AND DEFENSE SOLUTIONS NEWS
Decreasing Spacecraft ANSYS Discovery Live: Simulation in the News
Fuel Sloshing Real-Time Simulation A roundup of news items
Airbus engineers must reduce fuel Revolution featuring simulation
sloshing to achieve attitude control with
With ANSYS Discovery Live,
the lowest cost and weight penalty.
simulation is no longer a Join the simulation conversation
matter of hours or days — ansys.com/Social@ANSYS

it is instantaneous.
W elcome to ANSYS Advantage! We hope you enjoy this issue containing Realize Your Product Promise®
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a future issue? The editorial team is interested in your ideas for an article. mobile device, crossed a bridge, or put on wearable
technology, chances are you’ve used a product where
Contact us. ANSYS software played a critical role in its creation.
ANSYS is the global leader in engineering simulation.
The Editorial Staff, ANSYS Advantage [email protected] We help the world’s most innovative companies
deliver radically better products to their customers.
By offering the best and broadest portfolio of
Executive & Managing Editor Art Directors engineering simulation software, we help them solve
the most complex design challenges and engineer
Chris Reeves Ron Santillo, Dan Hart products limited only by imagination.
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Editorial Advisers Designer CFD Premium, CFX, Chemkin-Pro, Cloud Gateway, Customization Suite,
Amy Pietzak, Tom Smithyman Dan Hart DesignerRF, DesignerSI, DesignModeler, DesignSpace, DesignXplorer,
Discovery Live, EKM, Electronics Desktop, Elastic Licensing, Enterprise
Cloud, Engineering Knowledge Manager, EnSight, Explicit STR, Fatigue,
FENSAP-ICE, FENSAP-ICE-TURBO, Fluent, Forte, Full-Wave SPICE, HFSS,
Editorial Contributor ANSYS, Inc. High Performance Computing, HPC, HPC Parametric Pack, Icepak,
ANSYS Customer Excellence Southpointe Maxwell, Mechanical, Mechanical Enterprise, Mechanical Premium,
Mechanical Pro, Meshing, Multiphysics, Nexxim, Optimetrics, OptiSLang,
North America 2600 ANSYS Drive ParICs, Path FX, Pervasive Engineering Simulation, PExprt, Polyflow,
Professional, Professional NLS, Professional NLT, Q3D Extractor,
Canonsburg, PA 15317 RedHawk, RedHawk-SC, RedHawk-CTA, Rigid Body Dynamics, RMxprt,
SCADE Architect, SCADE Display, SCADE LifeCycle, SCADE Suite, SCADE
Senior Editor USA
Test, SeaHawk, SeaScape, SIwave, Simplorer, SpaceClaim, SpaceClaim
Tim Palucka Direct Modeler, Structural, TGrid, TPA, TurboGrid, Workbench, Vista TF,
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ICEM CFD is a trademark licensed by ANSYS, Inc. LS-DYNA is a
Erik Ferguson Mark Ravenstahl registered trademark of Livermore Software Technology Corporation.
nCode DesignLife is a trademark of HBM nCode. All other brand,
Kara Gremillion Walter Scott
product, service, and feature names or trademarks are the property
Thomas Matich of their respective owners.

© 2017 ANSYS, INC. ANSYS ADVANTAGE 3
BEST PRACTICES
DRIVING
INNOVATION
WITH
ELECTRONICS
Electronics are pervasive in our
world today. From electric machines to
high-speed electronic devices to antennas and
wireless communication, the demand continues to grow.
However, designing innovative products to work reliably in the
real world becomes more difficult with the need to reduce energy
consumption, avoid interference with other devices and decrease
development time. Leading companies leverage engineering
simulation to quickly bring to market pioneering products that
meet and exceed expectations.
By Mark Ravenstahl, Technical Director, Electronics Business
Unit Strategic Partnerships and Business Development, ANSYS
4 ANSYS ADVANTAGE ISSUE 3 | 2017
H
IGH-PERFORMANCE ELECTRONICS drive some of the
most remarkable innovations in every industry.
Trailblazing inventions such as advanced
driver assistance systems (ADAS),
the Internet of Things (IoT), 5G communications,
hybrid propulsion and others require advanced electromagnetic field simulation so
that leading organizations can design, optimize and deliver products quickly to market.
Engineers need to evaluate the effects of system density as radio frequency (RF) and wireless
communications components are integrated into compact packages to meet smaller footprint
requirements while improving power efficiency. Electrification of cars, planes and ships
requires pushing industrial components such as electric machines and electronics beyond
their traditional limits by leveraging new ways of thinking and design.
< An electric machine from WEG
With accurate simulation, engineers
demonstrates how virtual design
can predict the detailed performance leads to real innovation. Using
of their designs and deliver ANSYS simulation, WEG delivered
best-in-class energy efficiency,
innovative products. ANSYS
exceptionally low noise and
supports the delivery of bearing life over 100,000 hours.
cutting-edge products
with powerful innovations,
including an integrated
platform, best-in-class single
physics and comprehensive
multiphysics to push the
envelope of computer simulation to new heights.
Our most recent electromagnetic software innovations ANSYS Innovation:
for electric machines, high-speed electronics and RF/ Comprehensive Multiphysics Workflow
wireless communications continue to help engineers To improve motor efficiency, ANSYS Maxwell software
reach functionality and reliability goals on schedule. carries out rigorous performance calculations for
the machine, including the motion-induced effects
Electric Machine Design caused by linear translational and rotational motion,
Electric motors account for two-thirds of the advanced hysteresis analysis, demagnetization of
world’s industrial electricity consumption, which is permanent magnets and other critical electromagnetic
equivalent to 28 percent of the world’s total electricity machine parameters. Maxwell shares the same CAD
consumption, according to a study by ABB [1]. That source with and can be coupled to ANSYS Mechanical,
is a massive amount of energy considering that the ANSYS Fluent or ANSYS Icepak through the ANSYS
world devours electrical energy at close to 24,000 Workbench platform to perform stress, thermal, CFD
terawatt-hours per year [2]. Improving motor and acoustic analyses. These multiphysics capabilities
efficiency by 1 percent would save the equivalent of 81 are required for a detailed analysis of the full spectrum
million tanker trucks of gasoline each carrying 9,000 of factors that influence electric machine efficiency.
gallons of fuel. That’s enough eighteen-wheelers to go For example, losses calculated by Maxwell can be used
halfway around the Earth if placed bumper to bumper.
Clearly this energy savings is worth exploring. ANSYS Robust Electric Machine Design
simulation software helps electric machine designers Through Multiphysics
ansys.com/electric-machine
optimize their designs and improve energy efficiency.
© 2017 ANSYS, INC. ANSYS ADVANTAGE 5
Driving Innovation with Electronics (continued)
as inputs to CFD software to to simulate more and
calculate the temperature larger models both
distribution and evaluate faster and with higher
cooling strategies. fidelity. ANSYS software
Electromagnetic forces delivers groundbreaking
and torque calculated numerical solvers and HPC
in Maxwell can be methods that are optimized
input to ANSYS for single multicore machines
Mechanical to and scalable to take advantage
analyze deformations of the full power of a cluster.
and further assess Design exploration using
End effects Subdivided magnets
potential vibrations. parametric analysis is highly
This depth of Electric machine 3-D effects have significant impact on accelerated when scaled across a
end-product performance.
multiphysics cluster. Motor dimensions, drive
analysis is unique to currents, speed, torque load and
the ANSYS platform and can lead to machine designs any other simulation parameter can be evaluated at
that significantly decrease power consumption. numerous design points and solved simultaneously
on multiple cores. The new time decomposition
“
Electrification of cars, planes and ships requires pushing industrial
components such as electric machines and electronics beyond their traditional
”
limits by leveraging new ways of thinking and design.
ANSYS Innovation: High-Performance Computing method (TDM) within ANSYS Maxwell takes advantage
One of the most significant advancements in the of modern compute clusters. TDM delivers the
field of engineering simulation is high-performance computational capacity and speed needed to perform
computing (HPC). Organizations are now leveraging the full transient electromagnetic field simulations
tens, hundreds or even thousands of computer nodes required for electric motors, planar magnetics and
6 ANSYS ADVANTAGE ISSUE 3 | 2017
Three-dimensional layout with integrated system assembly for a laptop computer that combines a main printed circuit board
layout coupled with an edge connector and a daughter card
power transformers. This enables engineers to solve directly from the layout so electrical engineers can
all time steps simultaneously instead of sequentially, virtually assemble a digital electronic system with
while distributing the time steps across multiple IC packages, printed circuit boards, connectors and
cores, networked computers and compute clusters. cables, and then perform analysis of that system to
TDM makes full 3-D simulation possible during the leverage appropriate technology.
design phase so that details such as winding end effect
or subdivided magnets commonly used in electric ANSYS Innovation: Assembly Modeling,
machines can be explored and considered in a matter 3-D Components and Automation
of hours. The result is a phenomenal increase in Electrical engineers have long used schematic-based
simulation capacity and speed that allows engineering design to connect models for printed circuit boards,
design teams to explore many more options early in IC packages and components. This works well for
the development process to reduce power consumption relatively simple designs, but becomes tedious and
and meet other specifications. error-prone for larger, more complex designs. If the
engineer misses just one point-to-point connection for
High-Speed Electronics a single node, the simulation results will be incorrect.
Automated electronics design has evolved since the Layout-driven assembly is a superior method
days when IC design was controlled by the capabilities because it eliminates the need to create a schematic
of the lithographic manufacturing process. Once layout by assembling actual 3-D models of individual
and design could be considered together, electronic components. The layout-based environment is
signaling speeds increased and signal integrity designed to prepare a model for advanced 3-D
challenged electrical engineers with short signal rise electromagnetic simulation by instantly making all
time, transmission line effects and crosstalk. This electrical connections the moment the component is
required electromagnetic modeling. With today’s placed on the board. This streamlines the geometry
tight packaging densities, fast signaling and high setup so that the engineer can launch a full electrical
frequencies, tools for layout and electromagnetics must circuit simulation from the layout.
be employed jointly to obtain optimal performance
and reliability. Circuit and system analysis is now
ANSYS HFSS: Layout-Driven Assembly in
part of the broader EM assembly solution rather than ANSYS Electronics Desktop
the driver of it. Transient circuit analysis can be run ansys.com/electronics-desktop
© 2017 ANSYS, INC. ANSYS ADVANTAGE 7
Driving Innovation with Electronics (continued)
Simulation of a smartphone in ANSYS HFSS. Coupling among antennas and components across the frequency spectrum is
shown on the left and the 3-D geometry is shown on the right. HFSS predicts the installed antenna performance, and coupling
among antennas and signals on the PCB, across a broad range of frequencies.
RF and Wireless analysis for antennas mounted to electrically large
Antennas are critical for excellent wireless device platforms. Antenna designs created individually in
performance and essential to delivering innovations HFSS can be digitally placed on an electrically large
like the IoT, autonomous driving and more. In our platform and rapidly solved as an array using HFSS
modern wireless world, devices have multiple SBR+. This powerful combination enables analysis
antennas for various radio services and multiple of installed performance and antenna placement
input, multiple output optimization.
(MIMO) processing, and must
operate in the vicinity of other ANSYS Innovation:
electronic devices in large, RF Co-Site Prediction
complex electromagnetic As the number of wireless devices
environments such as an increases and the spectrum in
office, home or automobile. which they operate remains the
The latest ANSYS product same, these communication
innovations assist industry systems are more likely to interfere
leaders in designing reliable with each other and degrade
antennas, no matter what the the performance of neighboring
size or end application. systems. The ANSYS RF Option now
includes ANSYS EMIT, the industry-
ANSYS Innovation: Antenna leading software for predicting RF
Synthesis and Installed co-site and EMI interference
Antenna Performance of multiple radio transmitters
ANSYS HFSS high-frequency and receivers.
electromagnetic software streamlines synthesis, Platform and antenna coupling
setup and analysis of antenna designs. It allows information from HFSS is automatically transferred
every engineer, including those without antenna to EMIT through a powerful link. Using libraries
expertise, to create and optimize antenna designs and
Maxwell Time Decomposition Methods
integration. ANSYS HFSS SBR+, a powerful, shooting
Accelerate Simulation of Transient
and bouncing ray (SBR) electromagnetic field solver Electromagnetic Fields
ansys.com/time-decomposition
option for HFSS, delivers installed performance
8 ANSYS ADVANTAGE ISSUE 3 | 2017