Simulation of the Rollover Angle of a Self-Propelled Radish Harvester for Different Load Conditions

Abstract

This study was focused on the stability analysis of the self-propelled radish harvester. A 3D simulation model was developed using RecurDyn and used to analyze the rollover angle. The rollover angle of the original radish harvester was analyzed and checked to see if it satisfied the standard overturning angle (i.e., 30°). To improve it, three simulated weights (50, 100, and 150 kg) were added to three positions (front, center, and rear). The rollover angle of the radish harvester was slightly less than the criterion angle at a deflection angle of 180°. This issue was solved by attaching an additional weight to the front with a deflection angle of 180 degrees. In particular, when an additional weight of 50 kg was attached to the front or an additional weight of 150 kg was attached to the center or rear, the criterion angle range satisfied all conditions. In conclusion, it is feasible that the self-propelled radish harvester prototype could satisfy the criterion angle with the additional load and could be applied to field agriculture.

Enhancing Safety through Optimal Placement of Components in Hydrogen Tractor: Rollover Angle Analysis

“…According to the agricultural machine test standards, the overturning angle should be at least 30 • [48]. However, Kim et al [43] found that the minimum longitudinal overturning was 29.19 • ~33.25 • . Furthermore, according to ISO 16251-2 [53], the allowable range of the overturning angle depending on the off-road agricultural machine is 15 • ~45 • .…”

“…The tractor used does not have suspension for ease of calculating the change in CoG. This assumption may affect the tractor balance but was not considered in this rollover angle test [43]. It is assumed that the center of gravity G (a, c, h) of the tractor is located on the line of AM.…”

“…As the rollover angle was analyzed in only one direction, there was a limit to understanding the rollover angle in various directions. Kim et al [43] derived various directions of rollover angle by analyzing simulations that used various rollover angles and situations to measure the rollover angle of the tractor more accurately in all directions. Furthermore, it was possible to analyze the dynamic as well as the static rollover angle [44] by installing various obstacles on the driving path in the simulation and to derive the rollover angle by setting various conditions attached to the tractor [45].…”

Vibration and Slope Conditions during Harvesting Affect Radish Mass Measurements for Yield Monitoring: An Experimental Study Using a Laboratory Test Bench

“… Self-propelled radish harvester ( a ), three-dimensional model of a tractor-mounted radish collector, and ( b ) impact plate installation position (A,A), load-out conveyor (B,B), and pull-out conveyor (C,B). Adapted from [ 18 , 20 ]. …”

Enhancing Tractor Stability and Safety through Individual Actuators in Active Suspension

“…Hence, there is a limitation in knowing the rollover angle in all directions. Kim et al [33] used simulations to measure the rollover angle of a tractor more accurately in all directions instead of just one direction, which allowed them to analyze the rollover angle at different angles and situations, helping them to develop a method to prevent rollover accidents. By leveraging these simulations, it will be possible to rotate the tractor and derive the rollover angle from all sides.…”