Industrial Lubrication and Tribology,
Journal Year:
2023,
Volume and Issue:
75(10), P. 1208 - 1218
Published: Nov. 9, 2023
Purpose
This
study
aims
to
investigate
the
effects
of
irregular
groove
textures
on
friction
and
wear
performance
sliding
contact
surfaces.
These
possess
multiple
depths
asymmetrical
features.
To
optimize
texture
structure
surface,
an
adaptive
genetic
algorithm
was
used
for
research
optimization
purposes.
Design/methodology/approach
Using
as
tool,
numerical
simulations
were
conducted
surface
by
establishing
a
dimensionless
form
Reynolds
equation
setting
appropriate
boundary
conditions.
An
program
in
MATLAB
established.
Genetic
iterative
methods
calculate
optimal
structure.
individuals
selected
through
fitness
comparison.
The
depth
is
gradually
adjusted
crossover,
mutation,
mutation
operations.
ultimately
obtained
comparing
bearing
capacity
pressure
different
generations
micro-convex
bodies.
Findings
After
about
100
iteration,
distribution
grooved
became
relatively
stable,
after
320
generations,
reached
their
At
this
stage,
structures
can
support
more
loads
forming
oil
films.
Compared
with
regular
textures,
coefficient
decreased
nearly
47.01%,
while
carrying
lubricating
films
increased
54.57%.
results
show
that
have
better
lubrication
characteristics
effectively
improve
component
Originality/value
Surface
enhance
metal
surfaces,
improving
mechanical
lifespan
components.
However,
processing
challenging,
it
often
requires
experimental
comparisons
determine
structure,
resulting
high
trial-and-error
costs.
By
using
be
simulation
modeling,
saving
costs
process.
Coatings,
Journal Year:
2023,
Volume and Issue:
13(8), P. 1399 - 1399
Published: Aug. 9, 2023
Composite
surface
structures
inspired
by
the
functional
of
Scapharca
subcrenata
shells
can
improve
tribological
properties
effectively,
composed
ordered
“U”-
shape
micro-grooves
and
solid
lubricant
Sn-3.0Ag-0.5Cu
(SAC305)
alloys.
A
series
wear
tests
were
conducted
to
further
investigate
formation
characteristics
self-compensating
lubrication
film,
then
mathematical
model
spreading
tribofilm
could
be
proposed.
The
results
showed
that
appropriate
texturing
parameters
(NBCSS-28)
had
a
great
effect
on
which
exhibited
lower
friction
coefficient
(0.386)
volume
(0.682
mm3)
than
other
NBCSS
samples.
tribofilm,
with
thickness
few
microns,
was
deposited
contact
after
tests.
interfacial
reactants
(the
Ni/Ni3Sn2
interface)
SAC305
alloys,
Ni3Al
alloys
confirmed
wetting
experiments
thermogravimetric
analysis,
promote
deposition
diffusion
during
sliding
process.
Hence,
distinguishable
layered
observed
fractured
surfaces
Moreover,
process
an
obvious
relationship
reduction
in
dynamic
coefficient.
proposed
accumulation
behaviors
randomly
form
multiple
discrete
irregular
film
shapes
worn
surface,
predict
optimization
design
parameters.
Lubricants,
Journal Year:
2024,
Volume and Issue:
12(11), P. 377 - 377
Published: Oct. 30, 2024
Friction
is
ubiquitous
in
industry
and
daily
life,
which
not
only
leads
to
the
wear
tear
of
equipment
machinery,
but
also
causes
a
lot
energy
waste.
one
significant
factors
leading
loss
mechanical
systems.
Therefore,
it
essential
minimize
friction
losses.
Creatures
nature
have
evolved
various
surfaces
with
different
tribological
characteristics
adapt
environment.
By
studying,
understanding,
summarizing
lubrication
regulation
phenomena
typical
nature,
bionic
theories
methods
are
obtained
guide
development
new
materials
This
article
primarily
discusses
study
mechanisms
through
biomimetic
design,
mainly
divided
into
chemical
approaches,
structural
strategies,
chemical–structural
coupling
approaches.
From
point
view,
this
paper
summarizes
joint
engineering
biomedicine,
inspiration
from
lotus
leaves,
fish
skin,
snake
each
unique
antifriction
structures
famous
for
their
super
hydrophobicity
nature.
Finally,
simulates
mechanism
natural
organisms
action
biological
substances,
applied
coating
so
as
reduce
on
surfaces,
improve
durability
anti-pollution
ability
coatings,
significantly
performance
systems,
promote
scientific
innovation,
conservation,
emission
reduction,
sustainable
development.
Proceedings of the Institution of Mechanical Engineers Part J Journal of Engineering Tribology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 10, 2024
Under
extreme
working
conditions,
airframe
rolling
bearings
are
likely
to
suffer
from
weakening
bearing
capacity
and
fatigue
failure
due
excessive
temperature
poor
lubrication.
These
weaknesses
expected
be
improved
by
using
two-dimensional
layered
nanomaterials
MXenes,
which
exhibit
excellent
lubrication
performance,
thermal
conductivity
mechanical
strength.
In
this
study,
Ti
3
C
2
MXenes
is
added
into
the
lubricating
grease
of
bearings.
The
friction
coefficient
rise
comparison
tests
lubricated
with
MXene
additives
(MALG)
original
(OLG)
carried
out
on
high-performance
comprehensive
test
rig.
wear
morphologies
MALG
OLG
under
same
condition
compared
a
white
light
interferometer.
characteristics
life
extension
mechanism
nano-lubricated
analyzed.
results
show
that
can
effectively
reduce
suppress
OLG.
Meanwhile,
demonstrates
superior
anti-wear
properties
conditions.
Notably,
2000
rpm,
6KN
20%
filling
volume,
OLG,
coefficient,
areas
those
reduced
18.89%,48.64%
67.50%,
respectively.
This
study
proves
beneficial
contribution
in
practical
engineering
application
bearings,
provide
valuable
reference
for
extending
service
aerospace
Journal of Micromechanics and Molecular Physics,
Journal Year:
2023,
Volume and Issue:
08(02n03), P. 83 - 98
Published: Aug. 7, 2023
To
enhance
the
performance
and
longevity
of
bearings
by
addressing
issue
insufficient
lubrication,
this
research
paper
introduces
a
multi-drive
lubrication
system.
Inspired
micro-texture
clamshells,
bionic
textured
surfaces
(BTSs)
were
designed
fabricated.
Calcium
complex
grease
(CCG),
aluminum
(ACG),
lithium
(LCG),
these
three
greases
containing
2[Formula:
see
text]wt.%
accordion-like
MXenes
Ti
3
C
2
prepared,
respectively.
This
study
commits
to
evaluating
tribological
properties
BTSs
with
different
densities
under
lubrication.
The
results
showed
that
([Formula:
text]
=
38%)
had
best
anti-friction
anti-wear
average
friction
coefficient
(0.113)
wear
rate
reached
smallest
text][Formula:
text]mm
[Formula:
text]N[Formula:
text]m[Formula:
text]),
only
slight
occurred.
was
mainly
attributed
synergistic
complementary
lubricating
effects
MXenes-enhanced
grease.
