Study on Track-Roller Arrangements for Combine Harvesters to Suppress Vibrations on Paddy Fields

Abstract

Because combine harvesters ride over stubbles during harvesting, machine vibrations may be more excessive when moving on flat surfaces. The track-roller arrangement affects machine vibrations. In this study, cross-row harvesting simulations of different track-roller arrangements based on a dynamic model of a combine harvester with three degrees of freedom (vertical, pitch, and anteroposterior directions) was performed to suppress vibrations on paddy fields. Consequently, the track-roller arrangement for suppressing vibrations showed that the first and third track-rollers rode over core bars simultaneously when the second and fourth track-rollers rode over the center of core bars simultaneously. Moreover, the first, fourth, third, and second track-rollers rode over stubbles, one after another.