Plot Comments Due to alignment the tractor was not able to drive over the sensors so only the cart tires were tested. The round profile of the face of this tires meant that the pressure response was non uniform across the face. This meant that the center of the tire applied more soil load (E24_R_3). The other plot […]
Plot Comments This Unit was test on sensor locations 2 and 4. Notice how the 12 inch 20 inch stress was slightly higher for the location 4 (E30_w-disc_4). Also notice how the disc-ripper in the raised position was placing a much higher stress on the soil than the tractor. […]
Plot Comments This Unit again shows the relatively low pressure exerted on soil by articulated tractors with large tires or tracks. Note the difference between the two plots for this tractor is likely due to the change in soil properties between sensor installations. This demonstrates that the soil conditions can have a big impact on how the load […]
Plot Comments This Unit is a very nice demonstration of well balance duals on an articulated tractor This setup did not have much weight on the tractor and draft load from any equipment would increase the pressure on the rear tires. […]
Plot Comments This unit compared dual tires to a Low Sidewall (LSW) tire. The plots label with tue and Tuesday did not have the LSW tire installed and only compares duals and singles. In that case the duals reduced the load on the soil compared to the single tire The plots label “Wed” show that the […]
Plot Comments This Unit again shows the varying pressure distribution across the face of a track. The pressure under the rollers in the track unit is higher that the pressure in the center of the track face. […]
Plot Comments This Unit again tested a bias and a VF radial tire on the center section of the planter Inflation pressure are similar in both tires. It may be the case the the bias ply tire was at the maximum inflation pressure and would not be suited to carry this load. Soil pressure is […]
Plot Comments This track unit was much better suited to this application compared to the tires that were tested on Unit E21. From a load carrying and soil compaction, the track system out performed tires for this load. […]
Plot Comments This Unit compared a bias ply tire and a VF tire on the center section of a central fill corn planter. Note that the tire pressures for this unit are similar and in fact the VF tire was inflated to a higher pressure which is not what would be expected. To carry the load on the bias ply […]
Plot Comments This Unit shows how imbalance duals can be misleading. The plots E20_A_ 3 show the high peak for the single tire but when compared to the outer dual in plots E20_B_3 the stress is substantially reduced. Notice that the weight being carried by the outer dual is very low compared to the inner […]
Plot Comments This Unit had a high load on very narrow tires with high pressure. The plots show the variability in pressure across the face of the tread as it was difficult to consistently hit the sensor with the center of the tire. […]
Plot Comments Unfortunately data for the load picture was not obtained. However, notice that the truck loads the soil on the front tires more than the rear in the empty condition. The rear peak would have been slightly higher if the loaded test was collected. Also note that a lot of the stress is measured in the 6 […]
Plot Comments This set of plots shows the baler tires only. The last two peaks of each plot show the baler tire response. These tires are well balanced and equally loaded. However notice the increase in soil pressure in the center of the face of the tire. The pressure is reduced when measured about 1/3 […]
Plot Comments This Unit was equipped with a central tire inflation system (CTIS). This is a good example of high and low pressure tires. The load on the soil is reduce for the 6 inch depth when the tire pressure is reduced. The load at the 12 inch and 20 inch depth is not reduced by […]