Mechanics Based Design of Structures and Machines,
Год журнала:
2024,
Номер
52(9), С. 6973 - 7003
Опубликована: Янв. 3, 2024
The
present
research
activity
aims
to
bridge
the
gap
between
gear
geometry
tolerances,
eventual
test
rig
uncertainties,
and
resulting
excitations
represented
by
static
transmission
error
(STE)
as
main
source
of
whining
noise.
This
article
offers
a
detailed
experimental
investigation
addressing
impact
manufacturing
errors
in
form
lead
slope
profile
errors.
One
major
contributions
this
is
related
number
carried
measurements,
including
six
spur
pair
configurations.
While
most
literature
focuses
on
defects
wear,
cracks,
or
pitting,
study
emphasizes
need
consider
micro
tolerances
minimize
vibroacoustic
response
at
source.
experiments
under
conditions
are
conducted
for
various
operating
compared
with
numerical
computational
schemes.
Latin
Hypercube
sampling
selected
compute
peak-to-peak
bounds.
Results
yield
reliable
prediction
STE
even
presence
deviations.
cause
different
trends
response,
up
8
μm
difference
low
torque.
robustness
predictive
tool
validated,
which
enables
further
confident
parametric
studies.
Finally,
dynamic
behavior
investigated.
Important
differences
detected
gears
having
same
macro
meshing
from
uncertainties
notable
fluctuations
responses.
IEEE Transactions on Intelligent Transportation Systems,
Год журнала:
2024,
Номер
25(9), С. 12239 - 12255
Опубликована: Март 12, 2024
The
risk
associated
with
extreme
traffic
loads
on
bridges
has
seldom
been
explored,
State-of-the-art
evaluation
methods
being
time-consuming
and
unsuitable
for
fast
management.
Traditional
management
advocates
optimizing
offline
bridge
maintenance
plans.
In
contrast,
novel
approaches
that
can
assess
manage
this
live
through
Intelligent
Transportation
Systems
(ITSs)
are
lacking.
This
study
addresses
these
gaps
a
three-block
framework.
It
utilizes
Weigh-In-Motion
(WIM)
systems
collecting
bridge-specific
load
data,
develops
probabilistic
Risk
Prediction
Model
estimating
the
frequency
severity
of
overloading
events
drawing
current
Structural
Design
Codes
(SDCs),
simulates
an
ITS-based
architecture
implementing
actions.
framework
was
tested
2.5M
$+$
WIM
raw
data
records
gathered
from
ring
road
Brescia,
Italy.
Results
showed
design
were
overcome
more
frequently
than
SDCs
prescriptions,
violations
Traffic
Code
mass
limit
significantly
affected
predictions.
These
findings
underscore
need
increased
attention
when
issuing
permits
extremely
overweighted
vehicles
encourage
enforcement
strategies
implemented
by
architectures
real-time
