Abstract
In forestry work, vehicles such as heavy industry machines or tractors are used when they carry tools. When the vehicle run on group of particles, vibration occurs on the vehicle that causes deterioration in safety and ride comfort. It is important to clarify the characteristic and occurrence condition of vibration. In this study, Non-smooth DEM is used to analyze the vibration of vehicle. To improve the computational performance, vibration analysis method for a vehicle running on particle ground in a cylindrical coordinate system are proposed. The results of the analysis show that as the wheel speed increases, the amplitude also increases. In the case of multiple particle layers, as the number of particle layers decreases, the vibration becomes lower in frequency. At all damping natural frequencies, the vibration frequency is lower than damping natural frequency. Therefore, it was found that the vibration frequency is lowered by the particle ground.
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More From: The Proceedings of the Dynamics & Design Conference
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