SAE Update - December 2021 - 13

FOCUS: NVH
" Our big focus right now is how best to
apply acoustic materials in electric vehicles,
because they're still pretty newish, " she said.
" In the automotive industry, we have a lot of
experience with using heavy acoustic
materials on the firewall to block the noise
coming in from the engine. There's a lot of
experience isolating the engine so it doesn't
transmit noise through the vehicle's
structure. There's a lot of experience with
active noise control: playing sounds through
the speakers that can mask or make the
engine sound more powerful, depending on
what you want. But when the engine noise
is gone, as with EVs, now all of a sudden you
can hear whines and clicks and all the
annoying transient sounds that you couldn't
hear before.
" That's something we're addressing while
at the same time addressing sustainability.
We want the materials to be both
constructed from recycled materials and
recyclable at end of life, we want the
production process to be sustainable, and
we want to ensure that our products
contribute to the overal sustainability of
the vehicle. "
In 2020, Autoneum launched
" Autoneum Pure., " a branding
that is based on a
comprehensive set of criteria
assessing the sustainability
performance of a product in all four
phases of its life cycle: material
procurement, production, use and end of
life. "
UPDATE
One of
Autoneum's
most popular
products is called
Prime-Light.
" Autoneum Pure. " products consist of
Prime-Light for interior flooring and
insulation, Di-Light for carpets systems,
Ultra-Silent for exterior solutions, and
Hybrid-Acoustics PET for e-motor or engine
encapsulation.
" Generally, the most effective way to deal
with noise is to deal with it at the source.
That's not always possible, and that's where
acoustic materials come in, " said Frey.
She was lead author of a paper titled
" Interior Floor Engineering: Acoustic vs.
Compression Performance " at the recent
SAE Noise and Vibration Conference in
Grand Rapids, Mich. The paper can be
purchased here. n
By Patrick Ponticel, Update editor
December 2021
13
Autoneum

https://www.sae.org/publications/technical-papers/content/2021-01-1129/

SAE Update - December 2021

Table of Contents for the Digital Edition of SAE Update - December 2021

SAE Update - December 2021 - Cov1
SAE Update - December 2021 - Cov2
SAE Update - December 2021 - 1
SAE Update - December 2021 - 2
SAE Update - December 2021 - 3
SAE Update - December 2021 - 4
SAE Update - December 2021 - 5
SAE Update - December 2021 - 6
SAE Update - December 2021 - 7
SAE Update - December 2021 - 8
SAE Update - December 2021 - 9
SAE Update - December 2021 - 10
SAE Update - December 2021 - 11
SAE Update - December 2021 - 12
SAE Update - December 2021 - 13
SAE Update - December 2021 - 14
SAE Update - December 2021 - 15
SAE Update - December 2021 - 16
SAE Update - December 2021 - 17
SAE Update - December 2021 - 18
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SAE Update - December 2021 - 33
SAE Update - December 2021 - 34
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