Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 16, 2024
Abstract
In
this
paper,
first
of
all,
the
use
SOLIDWORKS
software
for
tuna
sorting
device
preliminary
three-dimensional
design,
four
suspended
load
cells
weighing
work,
choice
Siemens
S7-200
smart
series
PLC
system
control,
and
through
EDEM
simulation
simulate
in
on
transmission
movement,
with
amount
fish,
conveyor
belt
speed,
partition
angle
as
test
factors
efficiency
based
Box-Behnken
design
response
surface
test,
select
range
fish
0.5
~
1.5
/
s,
speed
0.2
0.5m
rotation
15
45
°,
orthogonal
experiments
ANOVA
well
analysis
to
conclude
that
The
can
reach
more
than
95
percent
at
time,
when
feeding
volume
is
fish/s,
0.5m/s,
spacer
41°.
Additionally,
A
force
device's
mechanism
revealed
a
0.6
m
would
optimize
efficiency.
Agriculture,
Journal Year:
2024,
Volume and Issue:
14(6), P. 815 - 815
Published: May 23, 2024
The
complex
mechanical
system
of
a
rice
combine
harvester
not
only
has
various
excitation
sources,
but
also,
the
vibration
transmission
path
between
each
working
device
and
contribution
characteristics
to
frame
are
clear,
so
it
is
difficult
perform
reduction
design
for
sharp
frame.
Therefore,
based
on
comparison
improvement
multiple
classical
transfer
analysis
methods,
this
paper
analyzed
by
discrete
time
matrix
method
operating
method.
In
Experimental
section,
through
characteristic
experiment
firstly,
obtained
power
spectrum
variation
most
needed
optimized
in
under
condition.
Secondly,
simulation
exciting
force,
we
damping
areas
that
needs
be
optimized.
Finally,
optimization
connected
with
experiment,
force
was
performed.
results
displayed
maximum
change
value
acceleration
cutting
table
decreased
from
7.862
m·s−2
3.522
m·s−2,
decreasing
55.2%,
peak
amplitude
multipoint
test
cab
5.4,
5.3,
1.7
2.0
μm,
respectively,
which
significantly
reduced,
effect
significant.
This
study
provides
theoretical
support
Agriculture,
Journal Year:
2024,
Volume and Issue:
14(8), P. 1433 - 1433
Published: Aug. 22, 2024
Strong
impacts
and
vibrations
exist
in
various
structures
of
rice
combine
harvesters
harvesting,
so
the
bolt
connection
structure
on
is
prone
to
loosening
failure,
which
would
further
affect
service
life
working
efficiency
device
structure.
In
this
paper,
based
vibration
signal
acquisition
experiment
vibrating
screen
harvester,
failure
feature
identification
studied.
According
sensitivity
analysis
results
primary
extraction
time-frequency
feature,
most
features
have
limitations
bolts.
Therefore,
establishment
a
high-dimensional
matrix
multivariate
fusion
matrix,
validity
set
was
verified
whale
optimization
algorithm.
And
then,
SVM
method
mapping
kernel
functions,
trained
by
LIBSVM
classification
decision
model.
The
identify
success
rates
time
domain
A,
frequency
B,
WOA-VMD
energy
entropy
C,
normalized
G
are
64.44%,
74.44%,
81.11%,
more
than
90%,
respectively,
can
reflect
applicability
state
matrix.
This
paper
provided
theoretical
basis
for
harvester
feature.
Biomimetics,
Journal Year:
2024,
Volume and Issue:
9(7), P. 427 - 427
Published: July 13, 2024
In
this
study,
based
on
the
principles
of
bionics,
we
fabricated
a
bionic
non-smooth
concave
pit
structure
shoulders
friction
stir
welding
tools
and
detected
thermal
cycling
curve,
downforce,
torque
tool
in
process.
We
tested
wear
loss
weight
analyzed
surface
morphology
shoulder
surfaces
after
for
200
m.
This
study
found
that
as
distance
between
pits
decreased
number
increased,
maximum
torque,
temperature
process
showed
decreasing
trend.
As
speed
no
matter
how
changed,
downforce
decreased,
while
peak
cycle
increased.
The
experimental
results
show
significantly
reduced.
lowest
with
interval
1.125
mm
was
only
0.1529
g,
which
is
27%
lower
than
conventional
tool.
Our
observations
amount
aluminum
swarf
gradually
declined
increasing
density
uneven
pits.
chips
adhered
to
mm.
Therefore,
biomimetic
structures
have
better
resistance
adhesion
resistance.
Agriculture,
Journal Year:
2024,
Volume and Issue:
14(11), P. 1960 - 1960
Published: Nov. 1, 2024
The
self-propelled
straw
pickup
baler
in
agricultural
work
is
responsible
for
collecting
and
compressing
to
facilitate
transportation
storage,
while
reducing
waste
environmental
pollution.
Like
other
equipment,
the
a
complex
mechanical
system.
During
operation,
its
excitation
characteristics
under
multi-source
stimuli
coupling
of
various
components
are
not
yet
clear.
This
paper
analyzed
mechanics
property
each
component
established
balance
equations.
Based
on
equations,
structures
were
studied.
Through
experiments
signals
from
multiple
devices
different
operating
conditions,
vibration
obtained.
revealed
that
Z
direction
particularly
evident.
experiments,
effective
Z-direction
signal
value
left
front
chassis
exceeds
7
m·s2,
right
it
increases
1.995
m·s2
7.287
indicating
most
intense
direction.
It
was
also
found
that,
at
driver’s
cab,
values
two
response
points,
11
12,
both
exceed
m·s2.
data
indicate
significant
vibrations
occur
longitudinal
vertical
directions.
Using
Signal
Analyzer
module
MATLAB
processing,
prominent
filtered
consist
combustion
harmonics
continuous
low-frequency
compression
mechanism.
periodic
reciprocating
motion
crank-slider
mechanism
causes
sustained
impacts
frame,
leading
changes
amplitude
chassis.
Thus,
reduction
mechanism’s
key
overall
machine.
Agriculture,
Journal Year:
2024,
Volume and Issue:
14(7), P. 1174 - 1174
Published: July 18, 2024
The
bolts
and
connections
of
each
working
part
a
rice
combine
harvester
can
suffer
from
severe
instantaneous
impacts
alternating
loads,
these
strong
loads
cause
fracture
fatigue
failure
the
bolt
face
even
loosening,
detachment,
bolt.
main
vibration
directions
most
complex
parts
in
under
time-variable
multiload
excitation
were
obtained
through
analysis
response
signals
terms
time-domain
frequency–domain
characteristics
via
experiment.
This
study
revealed
that
random
peak
value
vibrating
screen
is
12.5622,
which
impact
collision
standard.
For
screen,
local
4-Y
direction
was
load
destroying
connection
(the
reached
60.57
m/s2,
96.91
m/s2)
energy
intensity
4-Z
mainly
concentrated
at
12.42
maximum
three
109~115.68
m/s2),
so
bolted
are
vulnerable
to
destruction.
Therefore,
kinetic
model
microscopic
established
centralized
mass
method
explore
structures
subjected
multiple
thus
providing
mathematical
for
identifying
features
based
on
static
characteristics.
Proceedings of the Institution of Mechanical Engineers Part J Journal of Engineering Tribology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 26, 2024
Three-body
wear
is
the
primary
mechanism
in
friction
pair
between
groove
side
and
scraper.
This
study
quantitatively
investigates
effect
of
textures
on
three-body
under
different
factor
combinations
through
abrasive
experiments.
The
results
indicate
that
significantly
reduce
samples.
reduction
rate
sample
reaches
41%
optimal
combination.
Width,
depth,
tilt
angle
influence
loss.
Among
these
factors,
width
exhibits
a
negative
change
loss,
while
depth
show
positive
effects.
Additionally,
there
are
interactive
effects
loss
as
well
angle.
process
to
was
qualitatively
analyzed
by
discrete
element
method
(DEM)
simulation.
Combined
with
morphologies,
wear-resistant
explored.
can
mitigate
severity
wear,
contact
area
particles
samples,
alter
movement
enhance
resistance.
Meanwhile,
serve
guiding
modify
direction
transform
sliding
motion
coal
into
rolling
motion,
converting
continuous
“face-face”
intermittent
“point-face”
“line-face”
contacts.
provides
novel
ideas
theoretical
foundations
for
designs
mining
machinery
equipment.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 16, 2024
Abstract
In
this
paper,
first
of
all,
the
use
SOLIDWORKS
software
for
tuna
sorting
device
preliminary
three-dimensional
design,
four
suspended
load
cells
weighing
work,
choice
Siemens
S7-200
smart
series
PLC
system
control,
and
through
EDEM
simulation
simulate
in
on
transmission
movement,
with
amount
fish,
conveyor
belt
speed,
partition
angle
as
test
factors
efficiency
based
Box-Behnken
design
response
surface
test,
select
range
fish
0.5
~
1.5
/
s,
speed
0.2
0.5m
rotation
15
45
°,
orthogonal
experiments
ANOVA
well
analysis
to
conclude
that
The
can
reach
more
than
95
percent
at
time,
when
feeding
volume
is
fish/s,
0.5m/s,
spacer
41°.
Additionally,
A
force
device's
mechanism
revealed
a
0.6
m
would
optimize
efficiency.
