Research Square (Research Square),
Год журнала:
2022,
Номер
unknown
Опубликована: Авг. 5, 2022
Abstract
Digging
in
hilly
regions
is
an
important
measure
to
promote
afforestation
on
difficult
sites.
In
view
of
the
working
conditions
build
fish-scale
pit
slope,
auger
mechanism
soil
lifting
and
throwing
was
investigated
this
study.
This
study
utilized
EDEM
software
establish
operation
model
earth
conduct
DEM
(Discrete
Element
Method)
virtual
simulation
experiments.
A
quadratic
rotating
orthogonal
center
combination
test
implemented
by
setting
efficiency
conveying-soil
(Y1)
distance
throwing-soil
(Y2)
as
evaluation
indices.
Variance
analysis
response
surface
optimization
were
performed
experimental
data.
The
results
indicated
that
weight
factors
affecting
Y1
Y2,
feeding
speed
>
helix
angle
slope
angle,
angle.
optimal
parameter
each
influencing
factor
obtained.
Among
them,
when
preparation
required,
operating
was:
Slope
26.467°,
Helix
21.567°,
Feeding
0.1
m/s,
Rotating
67.408
r/min.
research
provides
theoretical
references
for
design
regions.
PLoS ONE,
Год журнала:
2023,
Номер
18(11), С. e0293750 - e0293750
Опубликована: Ноя. 3, 2023
In
order
to
study
the
dynamic
interface
mechanical
behavior
between
soil
and
agricultural
machinery
reveal
causes
of
tillage
resistance,
three
kinds
bionic
furrow
opener
were
designed
according
characteristics
earthworm
head
surface
curve,
using
discrete
element
method
simulate
analyze
process
openers.
The
results
showed
that
ditching
resistance
from
large
small
is
traditional
opener,
corrugated
ridgeline
composite
opener.
With
same
speed,
drag
reduction
effect
openers
increases
with
increase
depth.
During
increasing
depth
30
mm
60
90
mm,
increased
11.56
N
28.32
48.61
as
well
maximum
ratio
5.58%
7.20%
8.93%
for
depth,
reached
highest
rate
all
when
speed
100
mm/s,
value
9.08%.
width
ditch
smaller
than
Bionic
can
improve
height
reduce
width,the
structure
creates
a
gap
core
particles,
reducing
number
contact
area
particles.
particles
has
smallest
force
field
disturbance
caused
by
share
small,
evenly
distributed
along
surface.
simulation
shows
effectively
quality
ditching,
which
provides
theoretical
basis
subsequent
research
optimization.
Forests,
Год журнала:
2024,
Номер
15(1), С. 190 - 190
Опубликована: Янв. 17, 2024
Afforestation
operations
in
hilly
regions
are
both
arduous
and
unsafe.
The
mechanized
afforestation
method
that
takes
into
account
soil
water
conservation
measures
is
deemed
highly
important.
This
paper
examines
the
operational
process
auger’s
mechanism
of
digging
below
ground
using
discrete
element
(DEM).
Using
this
model,
disturbance
parameters
reaction
forces
satisfactorily
predicted,
exhibiting
similar
trends
to
experimental
observations.
research
also
influence
key
on
distribution
patterns
analyzes
conditions
mechanisms
formation
fish-scale
pits
preserve
water.
A
field
experiment
pit
woodland
carried
out
test
performance
device.
error
rates
for
actual
simulated
values
efficiency
conveying
distance
throwing
plain
terrain
slopes
were
12.7%
8.2%,
8.6%
15.7%,
respectively.
Overall,
provides
a
theoretical
basis
innovative
exploration,
development,
optimized
design
earth
augers
regions.
Sustainability,
Год журнала:
2024,
Номер
16(13), С. 5402 - 5402
Опубликована: Июнь 25, 2024
The
objective
of
this
study
was
to
advance
sustainable
forestry
development
through
the
creation
mechanical
equipment,
taking
into
account
operational
methods.
A
suspended
automatic
feeding
and
retracting
excavation
device
for
tree
pits
engineered,
its
interaction
with
soil
investigated
by
integrating
Discrete
Element
Method
(DEM)
Multi-Flexible
Body
Dynamics
(MFBD).
Based
on
simulation
results,
research
explored
impact
mechanisms
machine
transportation,
working
load,
fatigue
lifespan
spiral
blades
different
terrains
operating
conditions.
coupling
method
demonstrated
potential
designing
testing
equipment
in
specific
environments,
reducing
time
resource
consumption
field
testing.
Terrain
significantly
influenced
disturbance
variability,
while
effect
direction
minor.
Operational
parameters
should
consider
water
conservation,
favoring
formation
fish-scale
pits.
Field
tests
forested
areas
validate
practicality
apparatus,
providing
valuable
insights
operation
design
earth
augers
hilly
regions.
Agronomy,
Год журнала:
2024,
Номер
14(9), С. 2163 - 2163
Опубликована: Сен. 22, 2024
The
high
tillage
resistance
of
agricultural
soil-engaging
tools
(TASTs)
in
farmland
operations
(e.g.,
tillage,
sowing,
crop
management,
and
harvesting)
increases
fuel
consumption
harmful
gas
emissions,
which
negatively
affect
the
development
sustainable
agriculture.
Biomimetic
methods
are
promising
effective
technologies
for
reducing
TASTs
have
been
developed
past
few
years.
This
review
comprehensively
summarizes
typical
(ASETs)
their
characteristics
presents
existing
biomimetic
decreasing
TASTs.
introduction
TAST
reduction
was
performed
on
aspects
harvesting.
internal
mechanisms
possible
limitations
current
various
ASETs
were
investigated.
rates
ASETs,
as
affected
by
methods,
quantitatively
compared
under
different
soil
conditions
with
statistical
analyses.
Additionally,
three
future
research
directions
recommended
to
further
reduce
encourage
Sustainability,
Год журнала:
2024,
Номер
16(19), С. 8508 - 8508
Опубликована: Сен. 29, 2024
Conservation
tillage
(CT)
is
an
agricultural
technology
for
sustainable
soil
use,
and
clearing
the
root–stubble
remaining
in
seedbed
nursery
bed
a
core
aspect
of
CT.
In
this
paper,
characteristics
testing
methods
roots
stubble
their
growth
environments
were
reviewed,
which
could
provide
reference
setting
parameters
numerical
simulations
design
treatment
devices.
The
restoration
environment
CT
are
described.
Moreover,
crushing
technologies
evaluation
device
performance
summarized.
Furthermore,
prospects
physical
properties
soil,
reduction
adhesion
when
cutter
crushes
roots,
tracking
long-term
effects
different
on
intelligent
devices
stubble,
challenges
strategies
regarding
application
new
discussed.
This
paper
provides
development
from
perspective
Applied Sciences,
Год журнала:
2022,
Номер
13(1), С. 338 - 338
Опубликована: Дек. 27, 2022
The
discrete
element
method
can
be
used
to
analyze
the
interaction
between
tools
and
soil.
It
guide
optimal
design
of
tools,
but
appropriate
simulation
test
selected
is
important
achieve
goal.
This
paper
mainly
introduces
disturbance
soil
by
tillage
tools.
include
loosening,
movement,
mixing.
contour
visually
display
results,
cross-sectional
area,
lateral
throwing
amount,
ditch
ridge
height,
width,
backfill
are
characterize
shape.
Tracers
usually
track
particles
particle
movement
path
during
disturbance;
this
study
trend
When
parameters
models
appropriate,
contact
microscopic
accurately
simulated.
By
comparing
behavior
experiment,
model
verified.
introduced
provides
a
reference
for
research
Agriculture,
Год журнала:
2023,
Номер
13(1), С. 202 - 202
Опубликована: Янв. 13, 2023
Disc
seeders
are
commonly
used
in
no-till
farming
systems,
and
their
performance
evaluation
generally
rely
on
expensive
time-consuming
field
experiments.
Mathematical
models
can
help
speed
up
force-related
evaluations
improve
the
understanding
of
soil-disc
interactions,
to
assist
optimisation
processes.
Previous
analytical
force
prediction
disc
blades
have
not
accounted
for
free
rotation
aspect
blade.
This
paper
develops
an
model
from
wide
blade
failure
theory
adapted
suit
rotating
flat
operating
at
different
sweep
tilt
angles
compares
predictions
with
Discrete
Element
Method
(DEM)
simulations.
To
validate
two
models,
experiments
were
performed
a
remoulded
sandy
soil
condition
using
set
0°
20°,
four
6,
26,
45
90°
3-dimensional
components
draught,
vertical
side
forces
measured.
Results
showed
higher
coefficient
determination
(R2
=
0.95)
was
obtained
compared
DEM
0.85)
agreement
test
results.
It
found
that
both
developed
approach
be
predict
tillage
acting
Scientific Reports,
Год журнала:
2022,
Номер
12(1)
Опубликована: Ноя. 14, 2022
Abstract
Digging
in
hilly
regions
is
an
important
measure
to
promote
afforestation
on
difficult
sites.
In
view
of
the
working
conditions
build
fish-scale
pit
slope,
auger
mechanism
soil
lifting
and
throwing
was
investigated
this
study.
This
study
utilized
EDEM
software
establish
operation
model
earth
conduct
DEM
(Discrete
Element
Method)
virtual
simulation
experiments.
A
quadratic
rotating
orthogonal
center
combination
test
implemented
by
setting
efficiency
conveying-soil
(
Y
1
)
distance
throwing-soil
2
as
evaluation
indices.
Variance
analysis
response
surface
optimization
were
performed
experimental
data.
The
results
indicated
that
weight
factors
affecting
,
feeding
speed
>
helix
angle
slope
angle,
angle.
optimal
parameter
each
influencing
factor
obtained.
Among
them,
when
preparation
required,
operating
was:
Slope
26.467°,
Helix
21.567°,
Feeding
0.1
m/s,
Rotating
67.408
r/min.
research
provides
theoretical
references
for
design
regions.
