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Faculté des Sciences appliquées
Faculté des Sciences appliquées
MASTER THESIS
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Master thesis and internship[BR]- Master's thesis : Experimental study on the structural performance and viscous dissipation of gas foil bearings[BR]- Integration Internship : Mitis

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Kozak, Jonathan ULiège
Promotor(s) : Hillewaert, Koen ULiège
Date of defense : 4-Sep-2023/5-Sep-2023 • Permalink : http://hdl.handle.net/2268.2/18294
Details
Title : Master thesis and internship[BR]- Master's thesis : Experimental study on the structural performance and viscous dissipation of gas foil bearings[BR]- Integration Internship : Mitis
Translated title : [fr] Étude expérimentale des performances structurelles et de la dissipation visqueuse des paliers à film de gaz
Author : Kozak, Jonathan ULiège
Date of defense  : 4-Sep-2023/5-Sep-2023
Advisor(s) : Hillewaert, Koen ULiège
Committee's member(s) : Boman, Romain ULiège
Rehman, Danish 
Language : English
Number of pages : 103
Keywords : [en] Multi-Cantilever, Drag Torque, Load-Displacement, Dynamic Stiffness, Air Bearing
Discipline(s) : Engineering, computing & technology > Aerospace & aeronautics engineering
Target public : Researchers
Professionals of domain
Student
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] This Master thesis presents empirical measurements conducted on a in-house test bench
developed by Mitis, to characterize the static and dynamic load performance of three-pad
Multi-Cantilever Foil Bearings (MCFBs). The prototype MCFBs are Teflon-coated and have
distinct pre-loading levels. Firstly, a series of static load versus bearing displacement tests
were performed to measure the static stiffness and mechanical energy dissipation capacity of
the test bearings. Subsequently, drag torque tests were conducted at a rotor
speed of 30 krpm with increasing net-specific loads. These tests aimed at
identifying the prototype MCFB with the smallest frictional torque, as well as to determinate
its lift-off and touch-down speeds.


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Author

  • Kozak, Jonathan ULiège Université de Liège > Master ingé. civ. aérospat., à fin.

Promotor(s)

Committee's member(s)

  • Boman, Romain ULiège Université de Liège - ULiège > Département d'aérospatiale et mécanique > Département d'aérospatiale et mécanique
    ORBi View his publications on ORBi
  • Rehman, Danish
  • Total number of views 21
  • Total number of downloads 0










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