Abstract
DESIGN, FABRICATION AND TEST OF A SMALL FOUR-WHEEL VEHICLE FOR USE IN AGRICULTURE
Krissadang Sookramoon*
ABSTRACT
The goals of this study are to design and test the performance of a small 4-wheel vehicle for agricultural use, such as determining the vehicle's maximum traction force. Driving at the maximum gradient angle, turning radius, and braking distance, the maximum drive force derived from the calculation and test results of the vehicle is 604.91 Newtons, and the maximum possible speed is 50.51 kilometers per hour. The traction force is 483.89 Newtons, the turning radius is 2.48 m, and the inclination of the road that can be driven up is 15 degrees. With a total resistance of 121.02 Newtons, the vehicle has traction of 483.89 Newtons, making it capable of dragging a load with an acceleration of 1.94 m/s2 or 6.98 km/h/s. The turning radius was 2.36 m, and the error of the turning radius calculated from the experiment was 2.83 percent. The braking distance to a standstill from the braking test at a distance of 50 meters with a speed of 20 kilometers per hour was 4.232 meters.
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