About: The Influence of the Titanium Compressor Wheel on the Dynamics of the Turbocharger Rotor     Goto   Sponge   NotDistinct   Permalink

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  • The trend towards using turbochargers in various engines continues. In some applications, including engines of light duty trucks, city buses and even tractors and harvesters, the warranty of long life is demanded because turbochargers are subject to high cyclic loading and on consequence the turbochargers can determine the lifetime of the whole engine. The replacement of the aluminium compressor wheel for a titanium one significantly improves the turbocharger lifetime, but since a titanium alloy has about 60 % higher density than an aluminium alloy, the mass and the moments of inertia of the wheel increases, which further leads to changes in natural frequencies, rotor stability and power losses in bearings assuming the same bearing system as for the rotor with the aluminium wheel is employed. In this paper the influence of the increased mass properties are discussed. AVL Excite and in-house developed model are used for the construction of Campbell diagrams and stability maps and for the obtaining of detailed information about the behaviour of the oil films in journal bearings with fully floating rings.
  • The trend towards using turbochargers in various engines continues. In some applications, including engines of light duty trucks, city buses and even tractors and harvesters, the warranty of long life is demanded because turbochargers are subject to high cyclic loading and on consequence the turbochargers can determine the lifetime of the whole engine. The replacement of the aluminium compressor wheel for a titanium one significantly improves the turbocharger lifetime, but since a titanium alloy has about 60 % higher density than an aluminium alloy, the mass and the moments of inertia of the wheel increases, which further leads to changes in natural frequencies, rotor stability and power losses in bearings assuming the same bearing system as for the rotor with the aluminium wheel is employed. In this paper the influence of the increased mass properties are discussed. AVL Excite and in-house developed model are used for the construction of Campbell diagrams and stability maps and for the obtaining of detailed information about the behaviour of the oil films in journal bearings with fully floating rings. (en)
Title
  • The Influence of the Titanium Compressor Wheel on the Dynamics of the Turbocharger Rotor
  • The Influence of the Titanium Compressor Wheel on the Dynamics of the Turbocharger Rotor (en)
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  • The Influence of the Titanium Compressor Wheel on the Dynamics of the Turbocharger Rotor
  • The Influence of the Titanium Compressor Wheel on the Dynamics of the Turbocharger Rotor (en)
skos:notation
  • RIV/49777513:23520/14:43924108!RIV15-MSM-23520___
http://linked.open...avai/riv/aktivita
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  • I, S
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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  • 21688
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  • RIV/49777513:23520/14:43924108
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  • power loss; floating bearings; Campbell diagram; compressor wheel; turbocharger (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [85B5728B2D9A]
http://linked.open...in/vavai/riv/obor
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  • Rendlová, Zdeňka
  • Byrtus, Miroslav
  • Smolík, Luboš
http://localhost/t...ganizacniJednotka
  • 23520
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