Abstract In cotton growing, three-wheeled tractors are used for inter-row processing of cotton. Despite good agrotechnical permeability, they have significant specific disadvantages associated with low resistance, the impossibility using them transport work and, most importantly, a negative technogenic impact on soil. To eliminate these shortcomings tractor, “DTCAE LLC” developed design four-wh...

In this paper we look at the longer term impact of double cycling on port operations including crane, vessel, and berth productivity. Double cycling is a technique by which empty crane moves are converted into productive ones. We use a double cycling sequence that is operationally convenient, easy to model, and nearly optimum. We compare the performance of this sequence to those determined by a...

Farm tractors in cultivation consume a big amount of fossil fuels and emit greenhouse gases to the atmosphere. Improving traction performance power transfer indices wheeled field terrain soil with higher (pull ability) at optimal travel reduction (TR) can optimize energy utilization. This study compares performance, fuel consumption, productivity, farm tractor equipped new drive wheel “rigid lu...

85 years ago, on 11 July 1937, the production of STZ-NATI, famous and deservedly popular tracked agricultural tractor, was launched at Stalingrad Tractor Plant. This tractor first which had completely domestic deisgn. Development this is an example effective collaboration between design engineers STP scientists All-soviet Scientific Research Insitute (NATI). In comparison with predecessor, STZ-...

Kentucky FFA students inspected 153 farm tractors for safety features that prevent operator injuries during tractor overturns, highway collisions, runovers, and power take-off (PTO) entanglements. Tractor mean age was 23.6 years (SD = 20.9). Rollover protective structures (ROPS) were present on 50.66% of tractors, but only 33.33% of these had functional seatbelts. Loose and damaged seats were f...

Many used tractors that are imported from Japan are adding to the current national inventory in the U.S. and Canada of farm tractors that lack a rollover protective structure (ROPS). Gray-market tractors are built for use by the manufacturer for a certain country but are imported against the manufacture's wishes to a second country for use there, usually as a used tractor. Gray-market tractors ...

This paper provides a review of path-tracking strategies used in autonomous agricultural vehicles, mainly from two aspects: vehicle model construction and the development improvement algorithms. Vehicle models are grouped into numerous types based on structural characteristics working conditions, including wheeled tractors, tracked rice transplanters, high clearance sprays, robots, tractor–trai...