Polymers,
Journal Year:
2024,
Volume and Issue:
16(16), P. 2375 - 2375
Published: Aug. 22, 2024
In
this
paper,
we
propose
an
innovative
light-powered
LCE-slider
system
that
enables
continuous
self-circling
on
elliptical
track
and
is
comprised
of
a
LCE
string,
slider,
rigid
track.
By
formulating
solving
dimensionless
dynamic
equations,
explain
static
states,
emphasizing
dynamics
energy
balance.
Quantitative
analysis
reveals
the
frequency
systems
independent
initial
tangential
velocity
but
sensitive
to
light
intensity,
contraction
coefficients,
elastic
axis
ratio,
damping
coefficients.
Notably,
motion
outperforms
circular
in
angular
frequency,
indicating
greater
efficiency.
Reliable
under
constant
suggests
applications
periodic
fields,
especially
celestial
mechanics.
Additionally,
system’s
remarkable
adaptability
wide
range
curved
trajectories
exemplifies
its
flexibility
versatility,
while
absorption
conversion
capabilities
position
it
as
highly
potential
candidate
for
robotics,
construction,
transportation.
Polymers,
Journal Year:
2024,
Volume and Issue:
16(22), P. 3119 - 3119
Published: Nov. 7, 2024
Self-oscillation
enables
continuous
motion
by
transforming
constant
external
stimuli
into
mechanical
work,
eliminating
the
necessity
for
supplementary
control
systems.
This
holds
considerable
promise
in
domains
like
actuators,
wearable
devices
and
biomedicine.
In
current
study,
a
novel
suspended
liquid
crystal
elastomer
(LCEs)
ball
system
consisting
of
light-responsive
hollow
LCE
an
air
blower
is
constructed.
Stable
illumination
allows
its
periodic
oscillation.
Drawing
from
theoretical
model
conjunction
with
dynamic
model,
equations
are
established,
characteristics
explored
viewpoint.
The
numerical
calculations
suggest
that
two
patterns
present,
i.e.,
hovering
self-oscillatory
patterns.
critical
conditions
required
to
initiate
transition
between
quantified
different
parameters.
As
evidenced
outcomes,
manipulating
light
intensity,
damping
coefficient,
contraction
density,
gravitational
acceleration,
bottom
zone
height,
characteristic
coefficient
vertical
wind
speed
at
outlet
facilitates
precise
over
as
well
amplitude
frequency.
With
simple
structure,
customizable
dimensions,
remote
activation
active
manipulation,
this
may
potentially
change
design
approach
energy
harvesting,
microsensors
aerial
vehicles.
Polymers,
Journal Year:
2024,
Volume and Issue:
16(23), P. 3298 - 3298
Published: Nov. 26, 2024
Self-oscillation,
a
control
approach
inspired
by
biological
systems,
demonstrates
an
autonomous,
continuous,
and
regular
response
to
constant
external
environmental
stimuli.
Until
now,
most
self-oscillation
systems
have
relied
on
static
environment
that
continuously
supplies
energy,
while
materials
typically
absorb
ambient
energy
only
intermittently.
In
this
article,
we
propose
innovative
of
liquid
crystal
elastomer
(LCE)
fiber-slide
system
driven
self-flickering
light
source,
which
can
efficiently
regulate
the
input
in
sync
with
self-oscillating
behavior
under
voltage.
This
primarily
consists
photo-responsive
LCE
fiber,
slider
includes
conductive
segment
insulating
segment,
track.
Using
dynamic
model,
derive
governing
equation
for
motion
fiber-slider
system.
Numerical
simulations
show
voltage
exhibits
two
distinct
phases,
namely
stationary
phase
phase.
The
occurs
due
photo-induced
contraction
fiber
when
source
is
activated.
We
also
investigate
critical
conditions
required
initiate
self-oscillation,
examine
key
parameters
influencing
its
frequency
amplitude.
Unlike
continuous
release
from
field
our
dynamically
adjusts
synchronize
behavior.
Our
design
features
advantages
such
as
spontaneous
periodic
lighting,
simple
structure,
efficiency,
ease
operation.
It
shows
significant
promise
circuit
monitoring
devices,
optical
applications.
Journal of Applied Mechanics,
Journal Year:
2024,
Volume and Issue:
91(12)
Published: Aug. 29, 2024
Abstract
A
self-oscillating
system
can
harness
energy
from
the
external
environment
to
sustain
its
continuous
motion,
making
it
highly
suitable
for
applications
in
soft
robotics,
military
industry,
energy,
and
other
fields.
This
article
introduces
a
composed
of
light-responsive
liquid
crystal
elastomer
fiber,
baffle,
spring,
capable
achieving
self-oscillation
under
stable
lighting
conditions.
Considering
established
dynamic
model
elastomers
(LCEs),
nonlinear
is
introduced
used
as
basis
exploring
characteristics.
Numerical
computations
reveal
that
coupled
exhibits
two
distinct
motion
states:
static
states.
The
behavior
sustained
through
interaction
light
damping
dissipation.
Furthermore,
detailed
investigation
conducted
on
key
parameters
affecting
frequency
amplitude
self-oscillation.
In
contrast
complexity
current
systems,
this
particular
features
simplicity
structure,
ease
manufacture,
strong
adaptability.
These
advantages
are
expected
provide
broader
design
possibilities
micro-machines
mechanical
production
processes.
Polymers,
Journal Year:
2024,
Volume and Issue:
16(24), P. 3520 - 3520
Published: Dec. 18, 2024
In
recent
years,
there
have
been
many
studies
focused
on
improving
the
performance
of
active
materials;
however,
applying
these
materials
to
machines
still
presents
significant
challenges.
this
study,
we
introduce
a
light-powered
self-translation
system
for
an
asymmetric
friction
slider
using
liquid
crystal
elastomer
(LCE)
string
oscillator.
The
was
composed
hollow
slide,
two
LCE
fibers,
and
mass
ball.
Through
evolution
photothermal-induced
contraction,
derived
governing
equations
system.
Numerical
simulations
revealed
distinct
motion
modes:
static
mode
mode.
As
ball
moved,
fibers
alternated
between
illuminated
non-illuminated
states,
allowing
them
effectively
harvest
light
energy
compensate
dissipation
within
Unlike
traditional
self-oscillating
systems
that
oscillate
around
fixed
position,
enabled
advance
continuously
through
oscillator’s
symmetric
self-sustained
oscillation.
Furthermore,
explored
critical
conditions
necessary
initiating
as
well
key
parameters
influence
frequency
amplitude
oscillator
average
speed
slider.
This
system,
with
its
simple
design
ease
control,
holds
promising
potential
applications
in
various
fields
including
soft
robotics,
harvesting,
machinery.
Polymers,
Journal Year:
2024,
Volume and Issue:
16(16), P. 2375 - 2375
Published: Aug. 22, 2024
In
this
paper,
we
propose
an
innovative
light-powered
LCE-slider
system
that
enables
continuous
self-circling
on
elliptical
track
and
is
comprised
of
a
LCE
string,
slider,
rigid
track.
By
formulating
solving
dimensionless
dynamic
equations,
explain
static
states,
emphasizing
dynamics
energy
balance.
Quantitative
analysis
reveals
the
frequency
systems
independent
initial
tangential
velocity
but
sensitive
to
light
intensity,
contraction
coefficients,
elastic
axis
ratio,
damping
coefficients.
Notably,
motion
outperforms
circular
in
angular
frequency,
indicating
greater
efficiency.
Reliable
under
constant
suggests
applications
periodic
fields,
especially
celestial
mechanics.
Additionally,
system’s
remarkable
adaptability
wide
range
curved
trajectories
exemplifies
its
flexibility
versatility,
while
absorption
conversion
capabilities
position
it
as
highly
potential
candidate
for
robotics,
construction,
transportation.
