전기 트랙터의 작업기 부착 조건에 따른 정적 횡전도각 분석 및 안정성 평가

초록

This study investigates how the static lateral rollover angle of an electric tractor varies based on the attachment conditions of agricultural implements and quantitatively evaluates the resulting rollover stability. Unlike conventional internal combustion engine tractors, electric tractors have unique structural characteristics that can affect their rollover behavior, even with identical implement configurations, due to changes in the center of gravity. To explore these effects, we conducted multi-body dynamic simulations using RecurDyn. We examined three attachment conditions—no implement, rotary plow, and rotavator—at three different mounting heights (700 mm, 1000 mm, and 1300 mm). The tractor model was placed on a rotating platform, and static rollover angles were measured in four directions: front, rear, left, and right. The results indicated a significant decrease in the rollover angle in the rear direction and a general decline in rollover angles as the implement height increased. These findings highlight that both the type and position of the attachment significantly influence the tractor's center of gravity and rollover stability. This study offers a systematic assessment of rollover risks associated with various implement configurations and provides essential insights for developing design guidelines and control strategies to enhance safety in agricultural operations.

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