Magnetics Business & Technology - May/June 2024 - 22

TECH TIPS
Accelerating Electric Machine Design for Optimal Performance
By Edgar Matas Madalgo, Siemens Digital Industries Software
But if you really want to accelerate, the e-motor cannot be designed
in isolation. Optimizing the overall electric power system
is much more complex than getting your best components
together. This is because they influence each other. For example,
changes to your gear ratio can affect your e-motor efficiency and
battery life. By integrating realistic e-motor models within system
simulation, engineers are unlocking the next level of optimization
and gaining a competitive edge.
Introduction:
In the high-speed race to electrification, the design process of
electric machines presents engineers with several challenges
to accelerate product development, sustainability, and overall
electric system performance. Nowadays, a successful design is
dependent on your simulation strategy.
The Race Against Time
In their quest to meet market demands, engineers find themselves
racing against the clock. Traditional design processes are
time-consuming, with product development cycles lasting several
years. In the automotive industry, a drivetrain development cycle
can easily extend to 3 to 4 years. To be competitive, OEMs are
pushing hard to cut this time significantly, ideally under 2 years.
Realistically, there is no way they will achieve this without cutting
at least one physical prototyping round.
Tackling Multi-Physics Complexity as early as possible
Electric machines are complex devices governed by multiple
physics principles. Engineers grapple with balancing electromagnetics,
thermal integration, and NVH performance simultaneously.
Neglecting any aspect may lead to design flaws and costly
iterations. Simcenter provides access to multi-physics from early
design stages. It emphasizes the significance of thermal integration,
as even a slight increase of 10 °C in temperature can reduce
a machine's lifetime by half. By predicting electro-thermal and
NVH performance from the beginning, engineers can frontload
potential failures and address issues early in the design stage.
Simcenter E-Machine Design offers engineers a template-based
approach that allows them to accelerate their design exploration
and evaluate hundreds of designs per week without being
simulation experts. Additionally, engineers can adapt the level of
precision they require to each design step, ranging from equivalent
circuits that provide quick feedback even in complex axial
flux machines to detailed finite element simulations.
The Collaborative Conundrum
Collaboration among different departments is crucial for efficient
design processes. However, engineers often struggle with the
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Magnetics Business & Technology - May/June 2024

Table of Contents for the Digital Edition of Magnetics Business & Technology - May/June 2024

Contents
Magnetics Business & Technology - May/June 2024 - Cover1
Magnetics Business & Technology - May/June 2024 - Cover2
Magnetics Business & Technology - May/June 2024 - Contents
Magnetics Business & Technology - May/June 2024 - 4
Magnetics Business & Technology - May/June 2024 - 5
Magnetics Business & Technology - May/June 2024 - 6
Magnetics Business & Technology - May/June 2024 - 7
Magnetics Business & Technology - May/June 2024 - 8
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Magnetics Business & Technology - May/June 2024 - Cover3
Magnetics Business & Technology - May/June 2024 - Cover4
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