Machine learning assisted, flexible, miniaturized piezoelectric sensing array for large-area structural health monitoring
Journal of Physics Conference Series,
Год журнала:
2025,
Номер
2982(1), С. 012001 - 012001
Опубликована: Апрель 1, 2025
Abstract
Structural
Health
Monitoring
(SHM)
requires
the
aircraft
skin
to
integrate
large
areas
of
highly
sensitive
sensor
arrays
on
its
surface.
However,
fabricating
large-area
and
flexible
networks
that
are
both
lightweight
user-friendlyremains
a
significant
challenge.
While
miniaturized
sensing
array
ultrathin
integrated,
their
application
in
structural
health
monitoring
has
not
been
fully
developed.
In
this
study,
we
propose
an
SHM
technology
based
integrated
machine
learning.
The
core
principle
is
combine
piezoelectric
with
Multiple
Signal
Classification
(MUSIC)
algorithm
assisted
byback
propagation
neural
(BPNN).
MUSIC
generates
feature
matrix
enables
estimation
spatial
locations
impacts.
Experimental
results
show
effective
design
ensures
excellent
conformity
complex
surfaces
without
disrupting
surrounding
flow
field.
integration
significantly
improves
accuracy
impact
localization
robustness
BPNN,
making
it
resilient
variations
structure
shape,
material,
thickness,
or
presence
apertures.
Язык: Английский
Lunar Rickshaw – A non-Motorized Vehicle Designed for Exploration and Rescue Missions on the Moon’s South Pole
INCAS BULLETIN,
Год журнала:
2025,
Номер
17(2), С. 77 - 96
Опубликована: Июнь 5, 2025
We
have
designed
a
simple,
lightweight
vehicle
concept—a
Lunar
Rickshaw
(LR)—engineered
to
rapidly
and
safely
transport
an
incapacitated
astronaut
from
remote
location
the
Module
(LM).
In
addition
its
primary
function
for
emergency
evacuation,
can
also
serve
as
mobile
platform
carrying
essential
tools
during
extravehicular
activities
(EVAs).
Key
features
include
rapid
fold/unfold
mechanism
quick
deployment
stowage,
design
that
ensures
ease
of
handling
even
in
bulky
spacesuits,
robust
encapsulation
prevent
lunar
dust
affecting
moving
parts.
Additionally,
incorporates
redundant
fixing
components
so
if
one
fails,
another
seamlessly
assumes
load,
ensuring
continuous,
reliable
operation
harsh
environment.
Another
key
aspect
is
widened
wheel
track,
which
enhances
safety,
balance,
stability
operation.
pulling
shaft
initially
stored
folded
position
compact
stowage.
When
deployed,
it
unfolded
securely
locked
frame
using
Lock-and-Walk
Mechanism
(LWM),
structural
rigidity,
integrity,
efficient
load
distribution.
Язык: Английский