Off-Road Vehicles

General

• Code: 86.04
• Semester: Optional Η1-Η2 8th
• Study Level: Undergraduate
• Course type: Optional
• Teaching and exams language: Ελληνικά
• The course is offered to Erasmus students
• Teaching Methods (Hours/Week): Theory (3)
• ECTS Units: 4
• Course homepage: https://exams-sm.the.ihu.gr/enrol/index.php?id=17
• Instructors: Korlos Apostolos

Course Contents

Mechanical behaviour of soil, interaction between wheel/track and terrain.
Adhesion, traction and motion resistance of wheels and tracks, longitudinal and lateral slip.
Configuration, suspension and tension o f tracks.
Engine performance, engine speed regulation, air filtration.
Under-load shifting gearboxes.
Multiple-selection gearboxes.
Power-split gearboxes.
Transfer cases.
Power take-offs.
Open and limited-slip differentials.
Torque-sensitive and speed-sensitive differentials.
All-wheel drive systems.
Axles and final transmissions.
Hydromechanical and hydrostatic steering systems.
Hydraulic and pneumatic braking systems.
Endurance brake systems.

Educational Goals

– Understanding the behaviour of vehicles on uneven and yielding terrain (off-road) and the related challenges, constraints and demands on their mobility.
– Getting acquainted with the operation and design of the various types of off-road vehicles (jeeps, trucks, tractors, tracked vehicles).
– Understanding the performance and learning the basic principles of design of the propulsion, power transmission, steering and braking systems of off-road vehicles including track systems, various types of gearboxes and differentials, hydrostatic transmission systems, all-wheel drive systems, hydromechanical and hydrostatic steering systems, hydraulic and pneumatic braking systems.
– Acquiring the ability to design, evaluate, overhaul and maintain off-road vehicles and their subsystems.

General Skills

Research, analysis and synthesis of data and information
Decision making
Autonomous work
Promoting free, creative and inductive thinking

Teaching Methods

Lectures
Projected presentations
E-mail communication
Online synchronous and asynchronous teaching platform (moodle).

Students Evaluation

Assessment Language: Greek
Final written examination

Recommended Bibliography

J. Y. Wong, Terramechanics and Off-Road Vehicle Engineering, 2rd ed., John Wiley & Sons, 2010, ISBN 978-0-7506-8561-0
G. Lechner, H. Naunheimer, Automotive Transmissions, Springer, 1999, ISBN 3-540-65903-X
M. Mitschke, H. Wallentowitz, Dynamik der Kraftfahrzeuge, 4. Aufl., Springer, 2004, ISBN 3-540-42011-8
M. J. Nunney, Light and Heavy Vehicle Technology, 4th ed., Butterworth – Heinemann, 2007, ISBN 978-0-7506-8037-0
S. Bennet, I. A. Norman, Heavy Duty Truck Systems, 4th ed., Thomson Delmar Learning, 2006, ISBN 978-1-4018-7064-5