Polymers,
Journal Year:
2024,
Volume and Issue:
16(22), P. 3192 - 3192
Published: Nov. 17, 2024
Self-oscillation
is
the
phenomenon
in
which
a
system
generates
spontaneous,
consistent
periodic
motion
response
to
steady
external
stimulus,
making
it
highly
suitable
for
applications
soft
robotics,
motors,
and
mechatronic
devices.
In
this
paper,
we
present
self-oscillator
based
on
liquid
crystal
elastomer
(LCE)
fiber
under
constant
voltage.
The
primarily
consists
of
an
LCE-liquid
metal
(LCE-LM)
composite
fiber,
mass
sphere,
straight
rod
featuring
both
conductive
insulating
segments.
Building
upon
established
dynamic
LCE
model,
derive
governing
equations.
Numerical
calculations
reveal
two
distinct
regimes:
static
regime
self-oscillation
regime.
Furthermore,
provide
temporal
behavior
curves
electrothermal-induced
contraction
tensile
force,
phase
trajectories
variation
equivalent
driving
force
damping
force.
These
detailed
studies
elucidate
that
results
from
electrothermal-responsive
LCE-LM
when
circuit
activated,
with
continuous
being
sustained
through
interplay
between
sphere
self-controlled
circuit.
We
also
investigate
threshold
conditions
necessary
initiating
self-oscillation,
as
well
key
parameters
influence
its
frequency
amplitude.
Our
demonstrates
improved
stability
by
reducing
effects
gravity
other
disturbances.
Additionally,
curved
trajectory
can
be
achieved
replacing
one,
resulting
more
flexible
easily
controllable
structure.
Given
these
characteristics,
may
ideal
creating
monitoring
warning
devices,
systems,
integrating
actuators
controllers.
