A
novel
integrated
composite
laminate
(ICL)
with
embedded
macro-fiber
composites
(MFCs)
is
proposed
to
improve
the
vibration
reduction
performance
of
thin-walled
structures.
Its
dynamic
modeling
and
active
suppression
are
investigated.
The
structure
can
not
only
achieve
good
but
also
provide
protection
for
MFCs,
while
related
experimental
studies
rarely
reported
in
published
works.
This
paper
proposes
a
general
method
ICL
MFCs.
Considering
piezoelectric
effect
MFC
material,
semi-analytical
model
established
by
combining
first-order
shear
deformation
theory
Lagrange
equation.
On
this
basis,
state-space
equation
control
calculation
design
Proportional-Integral-Derivative
(PID)
controller
given.
Furthermore,
preparation
specimen
MFCs
introduced,
an
system
capable
testing
built.
comparative
results
simulations
experiments
demonstrate
accuracy
approach
effectiveness
capability
structure.
Finally,
effects
fiber
distribution
angle
on
structural
modal
characteristics
damping
investigated,
influence
laws
skin
plate
thickness
PID
parameters
revealed.
findings
new
technical
Studies
on
active
vibration
suppression
and
analysis
of
integrated
composite
sandwich
plates
(ICSPs)
embedded
macro-fiber
composites
(MFC)
have
been
rarely
studied
in
previous
papers,
especially
with
incompletely
constrained
boundaries
irregular
geometric
shapes.
This
paper
aims
to
provide
a
new
structural
design
for
thin-walled
structures
such
as
aircraft
wings
improve
the
anti-vibration
performance
study
influence
modal
damping
characteristics
structures.
The
dynamic
model
ICSPs
considering
piezoelectric
effect
is
established
based
first-order
shear
deformation
theory
(FSDT)
Lagrange
equation.
influences
shapes
incomplete
constraint
are
introduced
into
through
coordinate
mapping
artificial
spring
technology.
test
pieces
ICSP
prepared,
experimental
system
which
can
be
used
testing
control,
established.
On
this
basis,
accuracy
proposed
modeling
method
reduction
verified
by
combining
finite
element
results.
Moreover,
frequency
veering
behavior
caused
change
position
segment
analyzed,
some
interesting
phenomena
length
revealed.
boundary
conditions
control
parameters
discussed.
Some
research
results
helpful
reference
similar
A
novel
integrated
composite
laminate
(ICL)
with
embedded
macro-fiber
composites
(MFCs)
is
proposed
to
improve
the
vibration
reduction
performance
of
thin-walled
structures.
Its
dynamic
modeling
and
active
suppression
are
investigated.
The
structure
can
not
only
achieve
good
but
also
provide
protection
for
MFCs,
while
related
experimental
studies
rarely
reported
in
published
works.
This
paper
proposes
a
general
method
ICL
MFCs.
Considering
piezoelectric
effect
MFC
material,
semi-analytical
model
established
by
combining
first-order
shear
deformation
theory
Lagrange
equation.
On
this
basis,
state-space
equation
control
calculation
design
Proportional-Integral-Derivative
(PID)
controller
given.
Furthermore,
preparation
specimen
MFCs
introduced,
an
system
capable
testing
built.
comparative
results
simulations
experiments
demonstrate
accuracy
approach
effectiveness
capability
structure.
Finally,
effects
fiber
distribution
angle
on
structural
modal
characteristics
damping
investigated,
influence
laws
skin
plate
thickness
PID
parameters
revealed.
findings
new
technical
