Course detail

Tractors

FSI-QTAcad. year: 2018/2019

The subject introduces the construction of various functional tractor groups. The emphasis is laid upon the motional mechanics, the interaction with the field, the traction characteristics and the adhesion load of driving wheels as related to the limit load of the substrate. The subject evaluates various systems of transmitting the drive force of the tractor from the viewpoint of achieved efficiency and traction power, while showing the opportunities to increase the traction efficiency by way of the regulation hydraulics of a tractor.

Learning outcomes of the course unit

This course presents a survey of the current situation in the tractor design.

Prerequisites

Design of machine parts, kinematics and dynamics of machine mechanism, evaluation of these elements from the viewpoint of mechanics, elasticity and strength. Thermo cycles of combustion engines and thermal load. Combustion engines maps.

Co-requisites

Not applicable.

Recommended optional programme components

Not applicable.

Recommended or required reading

Wong , J.Y.: Terramechanics and Off-Road Vehicle Engineering. Elsevier 2009. pp.488. ISBN: 978-0-7506-8561-0
WONG, J. Y. Terramechanics and off-road vehicle engineering: Terrain behavior, off-road vehicle performance and design. Second edition. Kidlington, Oxford: Elsevier/BH, 2010. ISBN 978-0-7506-8561-0. (EN)
Sanjay Kumar: A Text Book of Tractor at a Glance, Vydavatel: International Book Distributing Company, 510 str., rok vydání 2007, ISBN: 9788181891853
Sanjay Kumar: A Text Book of Tractor at a Glance, Vydavatel: International Book Distributing Company, 510 str., rok vydání 2007, ISBN: 9788181891853 (EN)
Reinius,K.T.: Traktoren-Technik und ihre Anwendung.
OBŮRKA, Stanislav. Traktory. Brno: Ediční středisko VUT, 1990, 155 s. : obr., tab., grafy. ISBN 80-214-0081-1. (CS)
BAUER, František, Pavel SEDLÁK a Tomáš ŠMERDA. Traktory. 1. V Brně: Mendelova zemědělská a lesnická univerzita, 2006. ISBN 80-867-2615-0. (CS)
Semetko,J. a kolektiv: Mobilní energetické prostředky 2 (Mechanizmy vozidel).
Semetko,J. a kolektiv: Mobilní energetické prostředky 3 (Traktory a automobily).

Planned learning activities and teaching methods

The course is taught through lectures explaining the basic principles and theory of the discipline. Teaching is suplemented by practical laboratory work.

Assesment methods and criteria linked to learning outcomes

Course-unit credit: Active participation in workshops. Examination: Written and oral.

Language of instruction

Czech

Work placements

Not applicable.

Aims

The main goal is to describe utility properties of tractors.

Specification of controlled education, way of implementation and compensation for absences

Attendance in seminars is obligatory, checked by teacher. The way of implementation and compensation of absence is solved individually with subject guarantor.

Classification of course in study plans

  • Programme M2I-P Master's

    branch M-ADI , 1. year of study, summer semester, 5 credits, compulsory-optional

Type of course unit

 

Lecture

26 hours, optionally

Teacher / Lecturer

Syllabus

1. Driving gearand power transmission.
2. Driving gear auxiliary drive shaft.
3. Hydrostatic gears of tractors.
4. Exploitation equipment of tractors.
5. Forces influencing tractors with attached implement.
6. Forces influencing tractors four-wheel tractor.
7. Forces influencing caterpillar tractors.
8. Rolling resistance, drving force, slippage,
9. Output balance.
10. Adhesion and pulling efficiency.
11. Puling characteristics.
12. Tractors kit.
13. Performance of tractor aggregations.

labs and studios

26 hours, compulsory

Teacher / Lecturer

Syllabus

1. Driving gear and power transmission.
2. Driving gear auxiliary drive shaft.
3. Practical measurements of gear boxes – saw tooth diagram.
4. Exploitation equipment of tractors.
5. Forces influencing tractors with attached implement.
6. Practical measurements of regulatory systems of three-point suspensions.
7. Forces influencing tractors four-wheel tractor.
8. Measurements on roll dynamometers.
9. Output balance.
10. Measurements on roll dynamometers.
11. Adhesion and pulling efficiency.
12. Pulling characteristics.
13. Measurements on roll dynamometers.