2021-2022 / MECA0444-1

Mechanical design and machining


30h Th, 15h Labo., 11h Proj., 0,5d FW

Number of credits

 Bachelor of Science (BSc) in Engineering5 crédits 
 Master of Science (MSc) in Mechanical Engineering (EMSHIP+, Erasmus Mundus)5 crédits 


Eric Béchet, Jean-Luc Bozet, Pierre Duysinx, Jean Stuto

Language(s) of instruction

French language

Organisation and examination

Teaching in the second semester


Schedule online

Units courses prerequisite and corequisite

Prerequisite or corequisite units are presented within each program

Learning unit contents

This course intoduces to the design of the most usual machine elements. It has also an introduction to metal cuting fabrication processes.

Intoduction to ISO tolerances. Force determination in a transmission.
Preliminary design of a shaft. Fatigue resistance and criteria. Design of shafts Shaft-hub assembling. Rolling bearing computation. Journal bearings. Gears : spur and helical meshes. AGMA and ISO methods Belts and puleys.
Machining technologies: turning and milling operations.

Learning outcomes of the learning unit

After this course, the student will be able to dimension the most used machine elements.
- Determination of loads - Determination of reduced forces (M, N, T etc...) - Determination of permissible stresses - Sizing of shafts, long and short - Fatigue calculation - Shaft dynamics elements - Determination of catalog elements
This ability will be useful in the integrated project.

Prerequisite knowledge and skills

Prerequisites: Geometry, rational mechanics, elements of strength of materials.

Planned learning activities and teaching methods

Oral course and exercises which are applications and solution of a desgin project.

Mode of delivery (face to face, distance learning, hybrid learning)

face-to-face course.

Recommended or required readings

- Mémotech Plus - Ingénierie et mécanique. Conception Mécanique. Claude Barlier, René Bourgeois. Edition Casteilla. Collection MEMOTECH. 2011
- Text, "Conception et calcul des éléments de machines", (JF Debongnie) ISBN-13 :978-2-9601305-0-8, may be purchased at the AEES.
- Memento, "Memento de construction mécanique, ISBN13 : 978-2-9600313-9-3, may be purchased at the AEES

Assessment methods and criteria

Exam(s) in session

Any session

- In-person

written exam ( open-ended questions )

- Remote

written exam ( open-ended questions )

Written work / report

Continuous assessment

Additional information:

Part 1: Contnuous evaluation

  • The students have to solve several homeworks (mini projects) by groups of two. The assessement is based on the reports.
  • Lab reports of the machine tooling tranings (no pandemic situation)
Part 2: Exam
  • Exam includes a part with questions of theory and a part of problem solving (with open books)
  • Except on pandemic, attendance to the two lab sessions is mandatory to get the credits
  • Attendance of 60% to the supervised work sessions is mandatory to get the credits.
  • To get the credits, it is necessary to obtain marks greater or equal to 7/20 in both parts. In case of failure, the final mark is the lowest mark of the two parts.

Work placement(s)

Organizational remarks



Prof Pierre DUYSINX, LTAS - Automotive Engineering Institute of Mechanics and Civil Engineering, Building B52 Allée de la Découverte 13A, 4000 Liège Téléphone : +32 4 366 9194, Fax : +32 4 366 9159, Email : P.Duysinx@uliege.be
Prof. Eric BECHET Computational Geometry Institute of Mechanics and Civil Engineering, Building B52 Allée de la Découverte 13A, 4000 Liège Téléphone : +32 4 366 9165 Email : Eric.Bechet@uliege.be  
Prof. Jean-Luc BOZET
Prof. Jean STUTO

Items online

Machine element design
Text of the course

machine design memento
Pocketbook for the dimensiming of machine elements.