Duration
26h Th, 26h Pr, 20h Proj.
Number of credits
Lecturer
Language(s) of instruction
French language
Organisation and examination
Teaching in the first semester, review in January
Schedule
Units courses prerequisite and corequisite
Prerequisite or corequisite units are presented within each program
Learning unit contents
The course provides the fundamentals of the dynamics of mechanical systems.
Course Content
- Analytical Dynamics of Discrete Systems
- Free oscillations of one degree of freedom system
- Response to harmonic excitation
- General Forced Response
- Two-degree-of-freedom systems and dynamic-tuned dampers
- N-degree-of-freedom systems: fundamental properties (natural frequencies and vibration modes), calculation of their response to external loads
- Distributed-parameter systems and approximation methods
- Rotordynamics: critical speeds, gyroscopic effect, Campbell diagram and balancing procedures
Two problem-solving tutorial sessions, focusing on analytical methods and numerical computations using Python, will be organized during the semester.
A mandatory project divided into four parts is proposed during the semester. The project allows students to apply the concepts covered in the course.
Learning outcomes of the learning unit
The objective is to give to the students a solid background in the modelling and the simulation of the dynamical behavior of mechanical structures. Typical vibration problems encountered in mechanical systems and rotating machines will illustrate the theory.
This course contributes to the learning outcomes I.2, III.1, III.2, IV.1, VI.1, VII.2, VII.4 of the BSc in engineering.
Prerequisite knowledge and skills
This course requires basic knowledge of fundamental calculus, differential equations and applied mechanics.
Planned learning activities and teaching methods
The course includes ex-cathedra lectures (20 hours), review sessions (26 hours), computer-based laboratories (4 hours), and a project to realise at home (20h).
Mode of delivery (face to face, distance learning, hybrid learning)
Face-to-face course
Course materials and recommended or required readings
Platform(s) used for course materials:
- eCampus
Further information:
"Dynamique des systèmes mécaniques", edited by the "Centrale des Cours" of the School of Engineering.
Recommanded book and available at "la Centrale des Cours" of the School of Engineering:
M. Géradin, D. Rixen
Vibrations mécaniques: Théorie et application à la dynamique des structures
2024
ISBN 978-2-960-37390-5
Exam(s) in session
Any session
- In-person
written exam ( open-ended questions )
Written work / report
Out-of-session test(s)
Further information:
The final grade is based on the written examinations and on the homework reports. No document is allowed during the examinations.
Written examination of theory (30%)
The theory examination consists in:
- answering to one question of theory;
- giving some brief definitions;
- answering questions related to the project and the Python laboratories.
Practical written examination (40%)
The practical written examination consists in solving exercises similar to those given during the semester.
Project (30%)
Written reports on the proposed homework are mandatory. The note of the homework is taken into account for the second session, but it can be upgraded through an oral presentation.
There is no partial exemption for the examinations.
Work placement(s)
Organisational remarks and main changes to the course
The organisation is explained in details during the first lecture.
Contacts
Students are encouraged to actively interact with the professor, also outside of the lectures. It is highly recommended to set up an appointment first. For questions regarding the exercise sessions and the graded homework, the students can contact the assistant directly.
It is expected that the students follow a few basic rules when communicating by email:
- Indicate as subject "MECA0155: ...".
- Only use ULiege addresses (xxx@student.uliege.be).
- Always address emails to both the lecturer and assistant and not only to one.
- Follow the elementary rules of politeness.
A forum is also available to ask questions regarding the theory and the project.
Instructor: Loïc SALLES L.Salles@uliege.be
Assistant : Brieux THIBAULT