Duration
26h Th, 26h Pr, 30h Proj.
Number of credits
| Master MSc. in Aerospace Engineering, professional focus in aerospace engineering | 5 crédits |
Lecturer
Language(s) of instruction
English 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
Course Structure
- Turbomachinery Rotordynamics: Types of Modelling, Computation of Forward and Backward Critical Speeds, Campbell Diagram, Stability Analysis, Harmonic and Transient Responses, Multi-rotor behaviour, Design of bearings, Instability Phenomena.
- Dynamics of Blades and Disks: Campbell Diagram, External Excitation Sources, Aeroelastic Problems, Bird Impact.
- Stress analysis of compressor Blades: Leaning, Effect of Pre-Twist, Bending/Torsion Coupling.
- Stress analysis of Disks: Design Criteria, Burst speed assessment.
- Lifetime Calculations of Turbine Blades.
Learning outcomes of the learning unit
The objective is to present the methods used in the aeronautical industry to analyze the dynamical behaviour of turbomachines and to design mechanical components of turbojet engines such as compressors, turbine blades and disks.
This course contributes to the learning outcomes I.1, I.2, II.1, II.2, II.3, III.1, III.2, IV.1, IV.3, VI.1, VII.4 of the MSc in aerospace engineering.
Prerequisite knowledge and skills
This course requires basic knowledge in structural dynamics and of the finite element method.
Planned learning activities and teaching methods
Mandatory projects will be assigned to the students. It will give hands-on practice with methods used for the mechanical design of turbomachines.
The software Siemens Simcenter3D with the solver SOL 414 will be used in the class and the projects to illustrate the numerical implementation of the theoretical concepts presented in the course.
Mode of delivery (face to face, distance learning, hybrid learning)
Face-to-face course
Additional information:
The course is organised face-to-face during the 1st quadrimester.
Course materials and recommended or required readings
Platform(s) used for course materials:
- eCampus
Other site(s) used for course materials
- Siemens Xcelerator Academy (https://training.plm.automation.siemens.com)
Further information:
Recommended literature
Friswell, Michael I. Dynamics of rotating machines. Cambridge University Press, 2010.
Rao, J. S. Turbomachine blade vibration. New Age International, 1991.
Royce-Rolls. The jet engine. John Wiley & Sons, 2015.
Exam(s) in session
Any session
- In-person
written exam ( open-ended questions ) AND oral exam
Written work / report
Further information:
The final grade will be based on the written or oral exam of theory, the homework and their oral presentation. The exam will consist of answering questions on the course materials. Special attention will be devoted to the knowledge and to the understanding of the theoretical concepts. No document is allowed for the examination.
The assessment is based on the weighted geometric average of the projects and the exam. The final note is calculated as follows:
Final note = (Projects)^(0.7) * (Exam)^(0.3)
Work placement(s)
Organisational remarks and main changes to the course
The course's organisation is presented in detail during the first lecture.
Contacts
Loic Salles l.salles@uliege.be