SAE Update - December 2021 - 7

FOCUS: NVH
INTERNAL COMBUSTION,
ELECTRIFICATION, AND THE
FUTURE OF AUTOMOTIVE NVH
In the past, the Internal
Combustion (IC) engine was a
significant concern for
automotive Noise, Vibration, and
Harshness (NVH) engineers. IC
powertrains were both the boon
and bane of NVH vehicle
development. On the
unfavorable side, the worst IC
engines were a discomforting
source of unwelcome sound and
mechanical vibration. On the
UPDATE
beneficial side, the best IC engines were the source of
customer pleasing vibrations and desirable
soundscapes. Certain North American V8 and
European I6 gasoline engines come to mind as
examples of this. Furthermore, IC engines usually
provided a side benefit: they masked undesirable
vehicle noises. Considering the IC engine, its air
induction system, and its exhaust system as a
combined source of NVH, the overall effect was often
to cover other less appealing noise and vibration
sources in a vehicle from the point of view of its
human occupants.
December 2021
7
Jennifer Bastiaan / Kettering University

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
SAE Update - December 2021 - 19
SAE Update - December 2021 - 20
SAE Update - December 2021 - 21
SAE Update - December 2021 - 22
SAE Update - December 2021 - 23
SAE Update - December 2021 - 24
SAE Update - December 2021 - 25
SAE Update - December 2021 - 26
SAE Update - December 2021 - 27
SAE Update - December 2021 - 28
SAE Update - December 2021 - 29
SAE Update - December 2021 - 30
SAE Update - December 2021 - 31
SAE Update - December 2021 - 32
SAE Update - December 2021 - 33
SAE Update - December 2021 - 34
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