Journal of Vibration and Control,
Journal Year:
2023,
Volume and Issue:
30(15-16), P. 3641 - 3658
Published: Aug. 31, 2023
Quasi-zero-stiffness
(QZS)
isolators
exhibit
high-static
and
low-dynamic
stiffness
without
sacrificing
the
load-bearing
capacity
with
ability
to
shield
vibration
in
low-frequency
ranges.
Most
of
current
designs
possess
QZS
property
using
a
combination
positive
element
negative
element,
increasing
complexity
model.
In
present
research,
single-element
mechanical
metamaterial
is
tailored
obtain
property.
The
building
block
consists
single
elastically-deformed
beam,
static
results
3D-printed
metastructure
demonstrate
behavior.
A
mathematical
model
developed
for
studying
nonlinear
behavior
proposed
model,
dynamic
equation
solved
Harmonic-Balance
method.
Further,
an
experiment
performed
confirm
isolation
capability
Stability
analysis
mathematically
perturbation
analysis.
mechanism
obtained
here
solely
depends
on
flexible
beam’s
geometrical
configuration,
hence
making
design
strategy
material
independent.
Heliyon,
Journal Year:
2025,
Volume and Issue:
11(3), P. e41985 - e41985
Published: Jan. 18, 2025
Mechanical
metamaterials
are
architected
structures
with
unique
functionalities,
such
as
negative
Poisson's
ratio
and
stiffness,
which
widely
employed
for
absorbing
energy
of
quasi-static
impact
loads,
giving
improved
mechanical
response.
Acoustic/elastic
metamaterials,
their
dynamic
counterparts,
rely
on
frequency-dependent
properties
microstructure
elements,
including
mass
density
bulk
modulus,
to
control
the
propagation
waves.
Although
introduced
significant
contribution
solving
independently
static
problems,
they
were
facing
certain
resistance
use
in
real-world
engineering
mainly
because
a
lack
integrated
systems
possessing
both
vibration
attenuation
performance.
Advances
manufacturing
processes
material
computational
science
now
enable
creation
hybrid
offering
multifunctionality
terms
simultaneous
properties,
them
ability
controlling
waves
while
withstanding
applied
loading
conditions.
Exploring
towards
this
direction,
review
paper
introduces
design
process
multifunctional
properties.
We
emphasize
still
remaining
challenges
how
can
be
potentially
implemented
solutions.
