Publication detail

Subsynchronous frequency Subsynchronous frequency of a turbocharger rotor

FRYŠČOK, T. ŽATKO, M.

Czech title

Sub-synchronní frekvence rotoru turbodmychadla

English title

Subsynchronous frequency Subsynchronous frequency of a turbocharger rotor

Type

journal article - other

Language

en

Original abstract

This article describes the shift of the subsynchronous frequency due to change in lubricant temperature. A small diesel turbocharger for a passenger vehicle with semi-floating bearing system was investigated. Measurements were taken on a combustion engine using an external device as a source of lubricant for the turbocharger. Two temperature regimes were selected, 30 degrees C representing cold lubricant conditions, and 100 degrees C as the normal operating temperature. Lubricant pressure level was maintained at 1 bar during the entire test procedure. Results show the significant influence of lubricant temperature on the subsynchronous frequency of rotors.

Czech abstract

Tento článek popisuje posuv sub-synchronní frekvence vlivem změny teploty oleje na vstupu do ložiskové skříně turbodmychadla. Měření bylo provedeno za provozu na spalovacím motoru. Pro mazání turbodmychadla bylo použito externí zařízení pro přesnou regulaci tlaku a teploty oleje. Měření bylo provedeno ve dvou teplotních režimech při 30 st. C (začáteční teplota oleje) a 100 st. C (provozní teplota oleje) s konstantním tlakem 1 bar. Výsledky měření jsou prezentovány v tomto článku.

English abstract

This article describes the shift of the subsynchronous frequency due to change in lubricant temperature. A small diesel turbocharger for a passenger vehicle with semi-floating bearing system was investigated. Measurements were taken on a combustion engine using an external device as a source of lubricant for the turbocharger. Two temperature regimes were selected, 30 degrees C representing cold lubricant conditions, and 100 degrees C as the normal operating temperature. Lubricant pressure level was maintained at 1 bar during the entire test procedure. Results show the significant influence of lubricant temperature on the subsynchronous frequency of rotors.

Keywords in Czech

Sub-synchronní frekvence, dynamika rotoru, turbodmychadlo, pohyb rotoru v čase

Keywords in English

Subsynchronous frequency, rotor dynamics, turbocharger, shaft motion

RIV year

2013

Released

09.06.2013

ISSN

1214-0821

Volume

2013(11)

Number

2

Pages from–to

1–4

Pages count

4

BIBTEX


@article{BUT109144,
  author="Tomáš {Fryščok} and Miroslav {Žatko},
  title="Subsynchronous frequency Subsynchronous frequency of a turbocharger rotor",
  year="2013",
  volume="2013(11)",
  number="2",
  month="June",
  pages="1--4",
  issn="1214-0821"
}