A5072386468- Soil Mechanics and Vehicle Dynamics
- Agricultural Engineering and Mechanization
- Mechanical Engineering and Vibrations Research
- Agriculture and Farm Safety
- Agriculture, Soil, Plant Science
- Gear and Bearing Dynamics Analysis
- Engineering Applied Research
- Date Palm Research Studies
- Soil Management and Crop Yield
- Mechanical stress and fatigue analysis
- Hydraulic and Pneumatic Systems
- Engineering Structural Analysis Methods
- Real-time simulation and control systems
- Tribology and Lubrication Engineering
- Metallurgy and Material Forming
- Granular flow and fluidized beds
- Refrigeration and Air Conditioning Technologies
- Plant Surface Properties and Treatments
- Belt Conveyor Systems Engineering
- Mechanical Failure Analysis and Simulation
- Metallurgy and Material Science
- Marine and Coastal Research
- Vibration Control and Rheological Fluids
- Control Systems in Engineering
- Plant Physiology and Cultivation Studies
Kangwon National University
2016-2024
Kyushu University
2018
Jeonbuk National University
2018
Seoul National University
2012-2013
In this study, the fatigue damage to a power takeoff (PTO) shaft was evaluated under various operating conditions in rotary-tillage operations, considering soil strength and texture. Pearson correlation analysis conducted identify significant variables influencing PTO damage, prediction formula derived through regression using these variables. The exhibited increased shear stress with higher transmission gear stages, or properties, including stages while decreasing stages. Notably, as stage...
This study analyzed the lateral overturning and backward rollover characteristics of a multi-purpose agricultural machine recently developed in South Korea. Free body diagrams for theoretical analysis three-dimensional model dynamic simulation were created by reflecting actual dimensions material properties machine. The was verified using minimum turning radius angle static falling down sidelong derived through certified performance test. equations literature review. In analysis, critical...
In this study, the lengths of main links transplanting device a semi-automatic vegetable transplanter were optimized to reduce weight at same planting trajectory. The theoretical trajectory was obtained from kinematic analysis for link structure and verified through simulation using commercial software actual measurement high-speed camera. Then, that have great influence on minimum total length A genetic algorithm used as an optimization tool. As result, with optimal links, maintained while...
The effects of the slope ground and obstacle conditions on lateral overturning/backward rollover a tractor with an implement were analyzed through dynamic simulation. implement’s 3D simulation model was constructed. As for conditions, four heights three shapes set obstacles, eight slopes to be traveled by implemented tractor. Under each condition, critical speed at which begins overturn roll over derived, factors that caused analyzed. result instability types, backward happens when is low...
Agricultural workers suffer from various physical problems and mental stress, including depression insomnia. Various factors affect brain harsh agricultural working conditions. Further stress may also be due to changes in conditions such as temperature, noise, vibration. This study aimed determine the response ambient temperature under work using machinery. The electroencephalograms (EEGs) of 17 who machines was measured analyzed. EEG for 3 min at inactive active state work, respectively, 24...
In this study, the agricultural work stress induced by noise and vibration of some machinery was analyzed through electroencephalogram (EEG) measurements. The values spectral edge frequency (SEF) 95%, relative gamma power (RGP), EEG-based working index (EWI), utilized as indicators, were derived analyzing EEG data collected. analysis revealed that manifested when participants engaged in tasks following a period rest. Additionally, right prefrontal cortex identified where SEF95% RGP increased...
In this study, we determined optimal operating conditions for a card-cleaner type separating system installable in pepper harvester.We conducted factorial experiment with an apparatus imitating the system.A particle-behavior analysis model using EDEM software was also developed, and results were compared to demonstrate its validity.With validated, differing slope angle number of shafts performed specify conditions.Upon comparing results, difference between separation ratios approximately 1%...
In this study, we developed a monitoring system to accurately track the seeding rate and identify locations where mechanical pot-seeding machine failed sow seeds correctly. The employs diverse image processing techniques, including Hough transform, hue–saturation–value color space conversion, morphology Gaussian blur, pinpoint are missing. To determine optimal operating conditions for system, factorial experiment was conducted by varying brightness saturation values of data. When derived...
The goal of this research was to analyze the load and safety transplanting device 4-bar link type semi-automatic vegetable transplanter under different workload conditions. To measure strain at device, a measurement system developed using 15 gauges. Field tests were conducted 4 levels engine speeds (750, 1000, 1250, 1500 rpm) 10 planting distance (0.29–0.47 m). static factor defined as ratio between strength material maximum stress in device. calculated data converted from time domain...