2024

Agricultural Mechanization

Name: Agricultural Mechanization
Code: ERU12216L
6 ECTS
Duration: 15 weeks/156 hours
Scientific Area: Rural Engineering

Teaching languages: Portuguese
Languages of tutoring support: Portuguese, Spanish
Regime de Frequência: Presencial

Sustainable Development Goals

Learning Goals

Since the state of the art in agricultural machinery is constantly changing and the competition for qualified engineers increase students should be encouraged to be aware of the new progress.
This course is oriented to problem solving related to fundamental agricultural technology systems such as agricultural power and machinery providing basic knowledge for continuing education in matters related to agricultural machinery at a user's level.
The course is intended for crop production students and, therefore, is tailored to present examples relevant to these students.
The objectives of the course are the following: - Physics laws applied to the relation between tractor, implement and soil, addressing matters of safety, respect for soil quality and efficient use of machinery; - Machine subsystems focusing on those present in the majority of modern agricultural equipment, such as mechanical and hydraulic transmissions; electronic data transfer; - Basic principles of farm machinery management

Contents

Tractor and implement: Axle loads. Stability of tractors.Minimise soil damage and improve traffic ability. Safety load diagrams of handling equipment. Engine power; transmission and traction efficiency.Drawbar power. Improve traction efficiency. Matching tractor and implement.Fuel consumption.
Power Transmissions: Cardan shafts; gears; V-belts; chain drives.Kinematics and dynamics of power transmissions. Tractor PTO. Transmission in drills, planters and power harrows.
Hydraulic power: Principles, components and examples of hydraulic power systems in agricultural machinery (a. m.) Tractor linkage control and auxiliary hydraulic system.
Sensors, actuators and IS: Application of electronic sensors and actuators in a. m. Monitors in a. m. Communication of data between tractors and implements. VRT and GPS controlled equipment.
Farm machinery management: Machine performance; Machinery costs. Facts that affect the size of machinery needed. Planting and harvesting date. Work rate. Field days.

Teaching Methods

52 hours of theoretical-practical sessions.
Assessment
3 papers of 3 hours each and/or final exam
Approval
Approval in the discipline is obtained if the average mark of the 3 papers is ≥9.5 (in 20), with at least 2
papers ≥9.5 and in if none of the papers have been classified below 8.0 (in 20).
Students may opt to attend a final exam in which the approval mark is 9.5 (in 20).