The objective of the research is to develop a robot farming system using multiple robots. The research will discuss the application of multiple robots in Japan agriculture for rice, wheat and soybean. The robot farming system includes a rice planting robot, a seeding robot, a robot tractor, a combine robot harvester and various implements attached on the robot tractor. One of the key elements o...

The driving speed of modern tractors increased within last years up to 60 km/h. Together with the driving speed, the safety and comfort requirements are increasing as well. Since modern agricultural tractors still don’t have a rear axle suspension, their driving dynamics behaviour can become critical at certain situations. To be able to predict such critical situations, a multibody model of a t...

This paper describes an agricultural vehicle modified to serve as a research platform for agricultural engineering. A tractor was equipped with a global positioning receiver, inertial/GPS system, geomagnetic direction sensor, and a monochrome camera for local and global sensing. For steering control, the tractor was equipped with an electro-hydraulic proportional steering valve, PWM coil valve ...

Given a parabolic geometry and a tractor bundle, the BGG-machinery as developed by Čap-Slovak-Souček and simplified by Calderbank-Diemer gives rise to a sequence of natural differential operators, the first of which is overdetermined and yields interesting geometric equations. This thesis presents a natural method to construct a modified connection on the tractor bundle such that its parallel s...

Material collected from an asteroid’s surface can be used to increase gravitational attraction between the asteroid and a Gravity Tractor (GT); the spacecraft therefore operates more effectively and is referred to as an Enhanced Gravity Tractor (EGT). The use of tethers and solar sails to further improve effectiveness and simplify operations is investigated. By employing a tether, the asteroida...

Synopsis: The Tractor Supply Company case introduces students to a unique retailing story. By recognizing a target market with unique needs, TSC repositioned its traditional tractorparts business into a specialty retailer serving a variety of needs for consumers entertaining their interests in part-time farming and ranching. This growing consumer segment has been TSC’s focus for the past 15 yea...

in this study, a three wheel dynamic model refer to a field tractor with an implement was developed to control the tractor in the field accurately. main difference between a tractor and in-road vehicles is implements connected to the tractor. these implements exert lateral and draft force to the tractor. in order to investigate these kinds of forces, behavior of implements was simulated like a ...

the main purpose of this study was to estimate the market demand of tractor stock in africa, west asia and other target markets for iran manufactured tractors. box and jenkins, and exponential smoothing methods were applied, using data from 1961 to 2006. results indicated that demand for tractor stock in the target markets will be approximately 533 thousand sets in 2012 and consequently the ann...

The new types of elastic devices – staple-shape plate spring and leaf - have been developed at the Kyiv National University Construction Architecture. is an where ends are deflected from its middle part in same direction made form consoles equipped with hinge attachments. as a parallel to line load action designed variable length section. In each section, axis, relative which moment section ine...