Effects of soil-tool interaction and mechanical pulverization of arable soils in tillage -a comprehensive review
SSRN Electronic Journal,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
Язык: Английский
Evaluating the influence of straight-plain types of rotary tiller blades with various edge curves on maize residue using DEM
Biosystems Engineering,
Год журнала:
2024,
Номер
250, С. 49 - 61
Опубликована: Дек. 6, 2024
Язык: Английский
Study on the interaction mechanism between stubble-breaking blades and unidirectional maize root-soil composites
Biosystems Engineering,
Год журнала:
2025,
Номер
256, С. 104190 - 104190
Опубликована: Июнь 2, 2025
Язык: Английский
Interaction Mechanisms between Blades and Maize Root–Soil Composites as Affected by Key Factors: An Experimental Analysis
Agriculture,
Год журнала:
2024,
Номер
14(7), С. 1179 - 1179
Опубликована: Июль 18, 2024
To
design
a
high-performance
stubble-breaking
device,
studying
the
interaction
mechanisms
between
blades
and
root–soil
composites
is
urgent.
A
simplified
experimental
method
was
proposed
to
investigate
cutting
process
effects
of
key
factors
on
by
conducting
experiments
remolded
maize
composites.
The
results
showed
that
soil
support
force
interface
significantly
impacted
cutting.
Higher
compaction
forces
helped
avoid
root
dragging,
but
higher
thicker
roots
led
greater
resistance.
superposition
accumulation
increased
force,
especially
when
distribution
denser;
as
oblique
angle
bevel
increased,
root-cutting
dragging
distance
first
decreased
then
increased.
Compared
with
orthogonal
cutting,
optimal
angles
were
both
45°
reduced
60.47%
15.12%
shortened
22.33
mm
8.76
mm,
respectively.
Increasing
slide-cutting
speed
reduce
distance;
however,
it
also
faced
pure-cutting
force.
Consequently,
revealed
in
this
study
provide
optimization
basis
for
devices,
thus
promoting
development
no-till
technology.
Язык: Английский
Determination of Biomechanical Parameters and Development of an Improved FEM Model for Perennial Alfalfa (Medicago sativa L.) Roots
Agronomy,
Год журнала:
2024,
Номер
14(12), С. 3033 - 3033
Опубликована: Дек. 19, 2024
Grassland
degradation
and
reduced
yields
are
often
linked
to
the
root
soil
composite
of
perennial
alfalfa
roots.
This
study
introduces
a
novel
modeling
approach
accurately
characterize
biomechanical
properties,
assist
in
design
soil-loosening
root-cutting
tools.
Our
model
conceptualizes
as
structure
cortex
stele,
applying
transversely
isotropic
properties
stele
cortex.
Material
parameters
were
derived
from
longitudinal
tension,
compression,
transverse
shear
tests.
The
constitutive
was
Hashin
failure
criteria,
accounting
for
differences
tensile
compressive
strengths.
Results
reveal
that
strength
mainly
depends
on
with
its
exceeding
strengths
by
4–10
times.
In
non-longitudinal
stress
scenarios,
like
compression
tests,
new
demonstrated
superior
accuracy
over
conventional
models.
tests
further
validated
using
non-parametric
statistical
analysis.
provides
finite
element
method
(FEM)
that,
integrating
anatomical
features
significantly
enhances
simulation
accuracy.
tool
designing
low-energy
consumption
components
grassland
restoration
conservation
tillage.
Язык: Английский
Soil failure characteristics and loosening effectivity of compacted grassland by subsoilers with different plough points
Biosystems Engineering,
Год журнала:
2023,
Номер
237, С. 170 - 181
Опубликована: Дек. 28, 2023
Язык: Английский
Optimal Design and Discrete Element Method Model Development of the Acute Angle Hoe Opener for No-Till System
Processes,
Год журнала:
2024,
Номер
12(4), С. 711 - 711
Опубликована: Март 30, 2024
A
specialized
hoe
opener
was
engineered
for
no-till
systems
to
apply
substantial
amounts
of
wheat
seeds
and
granular
fertilizers,
effectively
suppressing
early
stage
weeds.
This
distinctive
plants
within
a
120
mm
wide
horizontal
band,
positioning
fertilizers
precisely
at
the
band’s
center,
all
accomplished
in
single
pass.
Notably,
design
excels
covering
fertilizer
with
soil
aggregates,
compacting
it
through
separator,
concurrently
depositing
from
above.
Our
primary
research
objectives
centered
on
achieving
consistent
seedbed
post-fertilizer
application
ensuring
uniform
distribution
band.
The
DEM
(Discrete
Element
Method)
exploited
optimize
opener’s
parameters.
Through
extensive
simulations
comparisons
experimental
outcomes,
an
optimal
wing
orifice
AB
length
60
identified,
aggregates
compaction
separator.
Furthermore,
parameters
seed
separator’s
hump
were
fine-tuned
using
Box–Behnken
algorithm,
resulting
dimension
40
top
radius
(A),
140
degrees
angle
(B),
90
bottom
(C).
Язык: Английский