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논문 기본 정보

자료유형
학술저널
저자정보
백승민 (Chungnam National University) 김완수 (Chungnam National University) 김연수 (Chungnam National University) 백승윤 (Chungnam National University) 김용주 (Chungnam National University)
저널정보
유공압건설기계학회 드라이브·컨트롤 드라이브·컨트롤 Vol.17 No.2
발행연도
2020.6
수록면
19 - 27 (9page)

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The purpose of this study was to suggest design criteria for the HMT (hydro-mechanical transmission) of a 55 ㎾-class agricultural tractor, develop a simulation model, and evaluate its performance such as axle rotational speed, tractor speed, and power transmission efficiency. In this study, the HMT comprised a compound planetary gear and a HSU (hydro-static unit), and the compound planetary gear comprised two planetary gear sets. The HMT has three gear stages, and the maximum tractor speed was selected as 40 km/h. The simulation time was set at 2736 hours considering the lifetime of the tractor, and the simulation was performed for each gear stage at the engine-rated power conditions. As a result of the simulation, the axle rotational speeds for each gear stage were 39, 77, and 158 rpm, respectively. The range of tractor speed for each gear stage were 1.05-10.22 ㎞/h, 10.74-20.17 ㎞/h, and 20.70-41.40 ㎞/h, respectively. The APE (absolute percentage gear) for the tractor’s maximum speed between target value and simulation results were 2.20%, 0.85%, and 3.50%, respectively. Also, the power transmission efficiency for each gear stage were 0-75%, 72-81%, and 69-81%, respectively. The simulation results for the power transmission efficiency of the HMT were similar with the results of the previous research. This was a basic study on the development of the HMT for an agricultural tractor. In future studies, it is necessary to develop a tractor platform and evaluate the performance. The comparison between the simulation model and the HMT tractor should be performed.

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Abstract
1. 서론
2. 정유압 기계식 변속기
3. 성능 해석 시뮬레이션 모델 개발
4. 시뮬레이션 결과
5. 결론
References

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UCI(KEPA) : I410-ECN-0101-2020-550-000677973