Analyzing the Static and Dynamic stability of a 110 kW Hydrogen Fuel Cell Tractor Using Simulation

초록

Environmental concerns are driving the transition to sustainability and green energy in the agricultural sector. Research and development efforts on hydrogen fuel cell tractors are advancing to mitigate the environmental impact of internal combustion engine tractors. Modifications to the components and design of the tractor lead to variations in dynamics, such as changes in the center of gravity and mass distribution, when compared to existing internal combustion engine tractors. These modifications substantially affect the mass distribution and position of the center of gravity, necessitating a reassessment of the tractor's rollover stability. In this study, the rollover stability of a hydrogen tractor was evaluated simulations using Recurdyn, a multibody dynamics program. Static stability was assessed by analyzing rollover angles. In longitudinal slope driving, driving stability was evaluated by analyzing whether the tractor could reach the set speed under varying slope gradients and ground friction coefficients. Under typical soil conditions, the tractor exhibited unstable driving starting at 15° slope due to insufficient traction. This study evaluates the rollover risk of hydrogen tractor, which differ in design from existing internal combustion engine tractors, and provides data that can inform guidelines for the operation of hydrogen tractors with a focus on stability. © 2025 ASABE. All rights reserved.

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