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Turbocharger Rotors Using Gas Bearings
Sembol, Tomáš ; Dlugoš, Jozef (referee) ; Novotný, Pavel (advisor)
This bachelor's thesis is a research project focused on turbocharger rotors using gas bearings. The work is devided into seven chapters. The first chapter is brief summary of history of development of turbochargers for combustion engines. Basic working principles of turbocharger are descriped in second chapter. Third chapter is about the construction of individual parts, as well as about the turbocharger as a whole. The fourth part is devoted to the design, technical solutions and applications of aerodynamic bearings. The fifth and sixth chapter explains some of computational and experimental method. The final chapter lists required structural modifications of existing turbochargers.
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Turbocharger Rotors Using Gas Bearings
Sembol, Tomáš ; Dlugoš, Jozef (referee) ; Novotný, Pavel (advisor)
This bachelor's thesis is a research project focused on turbocharger rotors using gas bearings. The work is devided into seven chapters. The first chapter is brief summary of history of development of turbochargers for combustion engines. Basic working principles of turbocharger are descriped in second chapter. Third chapter is about the construction of individual parts, as well as about the turbocharger as a whole. The fourth part is devoted to the design, technical solutions and applications of aerodynamic bearings. The fifth and sixth chapter explains some of computational and experimental method. The final chapter lists required structural modifications of existing turbochargers.
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Aerodynamic support for a big rotating machines
Šimek, J. ; Kozánek, Jan ; Šafr, M.
Aerodynamic bearing support for a 100 kW input industrial turboblower was designed and partly tested. Rigid rotor with about 50 kg mass was run up to the maximum operating speed of 18.000 rpm. The rotor is supported in two aerodynamic tilting-pad journal bearings 120 mm in diameter, the axial forces are taken up by aerodynamic thrust bearing 250 mm in diameter. The tests showed trouble-free operation of journal bearings up to maximum operating speed.
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Operation testing of the rotor supported on aerodynamic bearings
Vaník, J. ; Šafr, M. ; Šimek, J. ; Kozánek, Jan ; Veselý, Jan
A high-speed synchronous electric machine has been modified to run on contactless aerodynamic bearings designed and manufactured within this project. The experience gained during putting the motor in operation at the Institute of Thermodynamics is described and the first results from the test runs at speeds up to 50,000 rpm (basic diagnostic measurement of rotor relative vibration and subsequent spectral identification) are presented.
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Pohyb rotoru ve dvou bezdotykových ložiskách
Půst, Ladislav ; Kozánek, Jan ; Veselý, Jan
Two problems of contactless bearing-passive magnetic bearing and aerodynamic bearing - are presented. Numerical solution of 6 differential equations enable to study the influence both of the rotor weight and of impacts in retainer bearings on the dynamic responses of unbalanced rotor. A new method of measurement and evaluation of segment motion in aerodynamic bearings is proposed and tested.
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