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Effect of vibration amplitude on vapor cavitation in journal bearings
Luleå tekniska universitet.
1986 (English)In: Nordic Symposium on Tribology, Lulea, Sweden, 15-18 Jun. 1986, Luleå: Högskolan i Luleå , 1986Conference paper, Published paper (Refereed)
Abstract [en]

Computational movies were used to analyze the formation and collapse of vapor cavitation bubbles in a submerged journal bearing. The effect of vibration amplitude on vapor cavitation was studied for a journal undergoing circular whirl. The boundary conditions were implemented using Elrod's algorithm, which conserves mass flow through the cavitation bubble as well as through the oil-film region of the bearing. The vibration amplitudes for the different cases studied resulted in maximum eccentricity ratios ranging from 0.4 to 0.9. The minimum eccentricity ratio reached in each case was 0.1. For the least vibration amplitude studied in which the eccentricity ratio varied between 0.1 and 0.4, no vapor cavitation occurred. The largest vibration amplitude (i.e., eccentricity ratios of 0.1 to 0.9) resulted in vapor cavitation present 76 percent of one complete orbit.

Place, publisher, year, edition, pages
Luleå: Högskolan i Luleå , 1986.
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-34039Local ID: 8242d920-9233-11de-8da0-000ea68e967bOAI: oai:DiVA.org:ltu-34039DiVA, id: diva2:1007288
Conference
Nordic Symposium on Tribology : 15/06/1986 - 18/06/1986
Note
Godkänd; 1986; 20090826 (andbra)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-01-14Bibliographically approved

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  • apa
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