Feedback

Faculté des Sciences appliquées
Faculté des Sciences appliquées
MASTER THESIS
VIEW 20 | DOWNLOAD 3

Master thesis and internship[BR]- Master's thesis : Updating and standardization of design tools for the test facilities operated by BEBLUE Cryotech[BR]- Internship

Download
Erdogan, Hasan ULiège
Promotor(s) : Salles, Loïc ULiège
Date of defense : 5-Sep-2024/6-Sep-2024 • Permalink : http://hdl.handle.net/2268.2/20847
Details
Title : Master thesis and internship[BR]- Master's thesis : Updating and standardization of design tools for the test facilities operated by BEBLUE Cryotech[BR]- Internship
Author : Erdogan, Hasan ULiège
Date of defense  : 5-Sep-2024/6-Sep-2024
Advisor(s) : Salles, Loïc ULiège
Committee's member(s) : Bruls, Olivier ULiège
Béchet, Eric ULiège
Language : English
Number of pages : 54
Keywords : [en] ’rotordynamics’, ’Campbell’, ’critical speed’, ’FEM’, ’vibration’, ’Bearing Configuration’
Discipline(s) : Engineering, computing & technology > Aerospace & aeronautics engineering
Institution(s) : Université de Liège, Liège, Belgique
Degree: Master en ingénieur civil en aérospatiale, à finalité spécialisée en "aerospace engineering"
Faculty: Master thesis of the Faculté des Sciences appliquées

Abstract

[en] The accurate prediction and analysis of critical speeds are paramount for ensuring the
safe and efficient operation of rotating machinery. This study focuses on the rotordynamic
analysis of the Prometheus test rig, a system designed for cryogenic testing in aerospace
applications. Using the Finite Element Method (FEM) in conjunction with the Rotordynamic
Open Source Software(ROSS), this research aims to identify critical speeds and
optimize the rotor-bearing configuration to mitigate resonance risks.
Key aspects of the analysis include the development of a Campbell Diagram, which
visually represents the relationship between rotor speed and system frequencies, highlighting
potential resonance zones. The study further investigates the influence of various bearing
configurations on critical speeds, providing insights into how changes in stiffness, damping,
and positioning affect the dynamic behavior of the rotor system. Experimental data were
used to validate the FEM model, ensuring the accuracy and reliability of the predictions.
The findings from this study offer practical guidelines for optimizing rotor design in
high-speed applications, particularly where cryogenic conditions are present. By enhancing
the understanding of critical speeds and rotordynamic behavior, this work contributes to
the development of more robust and reliable rotating machinery.


File(s)

Document(s)

File
Access Master_Thesis_Hasan_Erdogan.pdf
Description:
Size: 5.4 MB
Format: Adobe PDF

Author

  • Erdogan, Hasan ULiège Université de Liège > Master ing. civ. aéro., fin. spéc. aer. eng.

Promotor(s)

Committee's member(s)

  • Bruls, Olivier ULiège Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire des Systèmes Multicorps et Mécatroniques
    ORBi View his publications on ORBi
  • Béchet, Eric ULiège Université de Liège - ULiège > Département d'aérospatiale et mécanique > Conception géométrique assistée par ordinateur
    ORBi View his publications on ORBi
  • Total number of views 20
  • Total number of downloads 3










All documents available on MatheO are protected by copyright and subject to the usual rules for fair use.
The University of Liège does not guarantee the scientific quality of these students' works or the accuracy of all the information they contain.