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논문 기본 정보

자료유형
학술저널
저자정보
배보민 (Pusan National University) 정대위 (Pusan National University) 류동형 (Pusan National University) 안장현 (Pusan National University) 최세오 (Pusan National University) 김연수 (Pusan National University) 이상대 (Korea Institute of Industrial Technology) 조승제 (Korea Institute of Industrial Technology)
저널정보
유공압건설기계학회 드라이브·컨트롤 드라이브·컨트롤 Vol.20 No.4
발행연도
2023.12
수록면
115 - 122 (8page)

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This study utilized a discrete element method (DEM) simulation, as one of the virtual field trials, to predict the impact of tillage depth on the rotary blade shaft during rotavator tilling. The virtual field for the simulation was generated according to soil properties observed in an actual field. Following the generation of particles for the virtual field, a sequence of calibration steps followed to align the mechanical properties more closely with those of real soil. Calibration was conducted with a focus on bulk density and shear torque, resulting in calibration errors of just 0.02% for bulk density and 0.52% for shear torque. The prediction of the load on a rotary tiller"s blade shaft involved a three-pronged approach, considering shaft torque, draft force, and vertical force. In terms of shaft torque, the values exhibited significant increases of 42.34% and 36.91% for every 5-centimeter increment in tillage depth. Similarly, the vertical force saw substantial growth by 40.41% and 36.08% for every 5-centimeter increment. In contrast, the variation in draft force based on tillage depth was comparatively lower at 18.49% and 0.96%, indicating that the effect of tillage depth on draft force was less pronounced than its impact on shaft torque and vertical force. From a perspective of agricultural machinery research, this study provides valuable insights into the DEM soil modeling process, accounting for changes in soil properties with varying tillage depths. These findings are expected to be instrumental in future agricultural machinery design studies.

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Abstract
1. 서론
2. 재료 및 방법
3. 결과 및 고찰
4. 결론
References

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