Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Март 27, 2025
Abstract
Haptic
displays
are
crucial
for
facilitating
an
immersive
experience
within
virtual
reality.
However,
when
displaying
continuous
movements
of
contact,
such
as
stroking
and
exploration,
pixel-based
haptic
devices
suffer
from
losing
information
between
pixels,
leading
to
discontinuity.
The
trade-off
the
travel
distance
elements
their
pixel
size
in
thin
wearable
hinders
solutions
that
solely
rely
on
increasing
density.
Here
we
introduce
a
continuity
reinforcement
skeleton,
which
employs
physically
driven
interpolation
enhance
information.
This
design
enables
off-plane
displacement
move
conformally
display
gaps.
Efforts
made
quantify
quality
using
geometric,
mechanical,
psychological
criteria.
development
integration
one-dimensional,
two-dimensional,
curved
with
reality
systems
highlight
impact
skeleton
display,
showcasing
its
potential
improving
experience.
Abstract
Snap‐through
instability,
a
rapid
transition
between
equilibrium
states,
has
emerged
as
crucial
mechanism
for
designing
mechanical
metamaterials
with
novel
functionalities,
including
fast
motion,
energy
modulation,
and
bistable
deformation.
Metamaterials
snap‐through
known
snapping
metamaterials,
have
enabled
diverse
applications,
such
robotics,
sensing,
absorption,
shape
reconfiguration,
intelligence.
Given
the
importance
of
these
advancements,
comprehensive
review
this
field
is
highly
desired.
This
paper
provides
an
overview
recent
research
on
focusing
their
design
strategies
applications.
Here,
we
summarized
in
several
respects,
beam‐based
structures,
shell‐based
origami/kirigami
designs,
according
to
basic
elements,
alongside
brief
discussion
unique
deformation
mechanisms.
Furthermore,
potential
applications
are
presented
terms
energy,
To
conclude,
perspectives
challenges
opportunities
emerging
highlighted,
offering
insights
into
future
development
metamaterials.
Advanced Materials Technologies,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 21, 2025
Abstract
Mechanical
computing,
while
not
poised
to
replace
electronic
presents
a
complementary
solution
in
areas
where
systems
face
challenges
like
high
power
consumption
and
environmental
vulnerability.
Despite
the
inherent
limitations
of
mechanical
speed,
size,
functional
scalability,
their
unique
2D
3D
geometries
offer
multi‐dimensional
signal
transmission
non‐volatile
logic
potentially
enhancing
computational
density.
However,
lack
advanced
modular
design
strategies
for
complex
has
hindered
progress
computing.
This
study
introduces
top‐down
approach
computing
using
multi‐output
gates
designed
with
square
lattices
bistable
beams,
addressing
scalability
through
that
facilitates
assembly
circuits.
innovation
only
enhances
density
but
also
reduces
system
offering
new
avenues
research
fields
soft
robotics
active
metamaterials,
setting
stage
advances
systems.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 26, 2025
Abstract
Stimuli‐responsive
materials
are
able
to
alter
their
physicochemical
properties,
e.g.,
shape,
color,
or
stiffness,
upon
exposure
an
external
trigger,
heat,
light,
humidity,
exhibiting
environmental
adaptability.
Their
capacity
undergo
shape
reconfiguration,
pattern
transformation,
and
property
modulation
enables
multifunctionality.
In
this
work,
two
strategies
harnessed,
i.e.,
prestressed
assembly
temperature‐dependent
stiffness
reversal,
introduce
a
class
of
temperature‐responsive
metamaterials
capable
undergoing
topological
transformations,
endowing
them
with
smart
functionality.
Through
combination
mechanics
theory,
numerical
simulations,
thermomechanical
experiments,
the
physical
mechanisms
underlying
temperature‐triggered
transformations
leading
switches
first
elucidated,
then
insights
leveraged
demonstrate
tunable
bandgaps
robotic
capturers.
These
findings
reveal
attainment
giant
negative
positive
values
coefficient
thermal
expansion,
accompanied
by
isotropic
expansion
shrinkage
under
actuation
within
fairly
rapid
timeframe,
below
6
s.
The
strategy
here
presented
is
versatile
as
it
relies
on
pair
off‐the‐shelf
3D
printable
materials,
can
be
up‐
down‐scaled,
also
realized
through
other
stimuli,
light
moisture,
paving
way
for
use
in
multifunctional
applications,
including
stimulus‐triggered
morphing
devices,
autonomous
sensors
actuators,
reconfigurable
soft
robots.
Cell Reports Physical Science,
Год журнала:
2024,
Номер
5(4), С. 101921 - 101921
Опубликована: Апрель 1, 2024
Mechanical
metamaterials
have
demonstrated
their
potential
as
programmable
structural
materials
with
tailorable
deformative
responses.
The
existing
mechanical
exhibited
to
mimic
certain
flowers;
however,
it
is
of
interest
expand
the
mimicry
from
morphological
imitation
in
spatial
dimension
(i.e.,
unchangeable
over
time)
multifunctional
biomimicry
spatiotemporal
dimension.
Here,
we
report
origami
metamaterial
biomimetic
bouquets
that
combine
information
processing
time
for
floriography
4D.
not
only
key
characteristics
lily's
growing
process
bud
and
bloom)
but,
more
innovatively,
also
traditional
time-independent
expression
species,
color,
quantity)
fourth
changeable
status
through
binary
digital
abstraction.
This
research
opens
a
horizon
bio-inspired
intelligent
devices
systems
rationally
designing
assembling
new-generation
metamaterials.
Mechanical
computing
encodes
information
in
deformed
states
of
mechanical
systems,
such
as
multistable
structures.
However,
achieving
stable
memory
most
systems
remains
challenging
and
often
limited
to
binary
information.
Here,
we
report
leveraging
coupling
kinematic
bifurcation
rigid
cube-based
mechanisms
with
elasticity
create
transformable,
metastructures
stable,
high-density
memory.
Simply
stretching
the
planar
metastructure
forms
a
corrugated
platform.
It
allows
for
independent
or
magnetic
actuation
individual
bistable
element,
serving
pop-up
voxels
display
units
various
tasks
writing,
erasing,
reading,
encryption,
mechanologic
computing.
Releasing
pre-stretched
strain
stabilizes
prescribed
information,
resistant
external
perturbations,
whereas
re-stretching
enables
editable
memory,
akin
selective
zones
disk
formatting
erasure
rewriting.
Moreover,
platform
can
be
reprogrammed
transformed
into
multilayer
configuration
achieve
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 29, 2024
Abstract
Inflatable
multistable
materials
have
significantly
advanced
the
design
of
shape‐preserving
soft
robotic
arms,
offering
substantial
benefits
in
terms
shape
adaptability,
energy
efficiency,
and
safety,
ensuring
operational
reliability
even
event
sudden
power
loss.
However,
existing
strategies
for
realizing
arms
often
limit
themselves
to
a
single
mode
multistability,
commonly
with
rotationally
symmetric
designs
favoring
extension
stability
asymmetric
inducing
bending
stability.
To
address
limitation,
this
study
introduces
pioneering
platform
termed
multimodal
multistability
that
utilizes
geometrical
frustration.
A
cylindrical
cell,
designed
bistability,
could
achieve
frustrated
states
by
controlling
cell
multiple
degrees
freedom
incorporated
pneumatic
actuator.
This
extends
spectrum
attainable
stable
trajectories
while
preserving
essential
attributes
such
as
load‐bearability,
programmability,
reversibility
changes.
Leveraging
system
four
pressure
control,
not
only
enables
capturing
previously
unexplored
configurations
mechanical
metastructures
but
also
allows
control
their
deformation
modes.
With
applications
spanning
space
exploration,
medical
instruments,
rescue
missions,
promises
unparalleled
flexibility
efficiency
operation
robots.
Advanced Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 6, 2024
Abstract
Mechanical
computing
promises
to
integrate
semiconductor‐based
digital
logic
in
several
applications,
but
it
needs
straightforward
programmable
devices
for
changing
rules
situ.
A
methodology
based
on
strain‐governed,
bistable
soft
shells
that
process
information
by
interchanging
their
internal/external
surfaces
is
proposed.
This
behavior,
explained
via
model‐based
design,
safeguards
robustness
working
only
once
each
input
pulse.
Thus,
these
are
leveraged
create
a
buffer
and
NOT
gate
lead
six
fundamental
gates
(AND,
OR,
NAND,
NOR,
XOR,
XNOR).
All
functions
integrated
into
unique
device,
making
mechanically
circuits
more
adaptable
with
rule‐changeable
operations.
design
ensures
continuous
processes
general
applicability
multiple
types
of
signals
(a
pressurized
fluid
can
replace
mechanical
driving
shown).
It
also
empowers
complex
suitable
expanded
such
as
the
half
full
adders
addressed.
