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모하마드알리 ( Mohammod Ali ),나피울이슬람 ( Md. Nafiul Islam ),카말라술 ( Kamal Rasool ),밀론초두리 ( Milon Chowdhury ),나딤알리칸 ( Nadeem Ali Khan ),정선옥 ( Sun-ok Chung ) 한국농업기계학회 2020 한국농업기계학회 학술발표논문집 Vol.25 No.2
Optimization of the power transmission parts is essential for the development of a multi-functional platform for an agricultural track vehicle. However, the goals of the study were to design the gears and to evaluate the power transmission efficiency using computational simulation methods. The 3D models of a 10, 20, 30, 40, 50T spiral bevel gear were generated using steel material SM45C, employing the commercial software. The power transmission efficiency was calculated varying the gear teeth number, face width, and motor speeds maintaining the electric vehicle powertrain directions. The gear modules of 2.2, 2.7, and 3.2 were used to design the selected gears following a 1:1 gear ratio. The power transmission efficiency of the introduced vehicle was simulated using 1000, 2000, 3000, and 4000 rpm speeds. The simulation results of a 3.2 mm module with 50T showed better performance with maximum power loss at a high rotational speed. The maximum power transmission efficiency was recorded to be 99.95% when adjusted for 4000 rpm rotational speed. The designed gears with 30 mm and 20 mm face width achieved 99.91% and 99.93% transmission efficiency, respectively. The software-based analysis of power transmission gears would provide guidelines for the optimal design of the introduced agricultural utility vehicle.