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Elasticity effects on cavitation in a squeeze film damper undergoing noncentered circular whirl

Author
Brewe, David E.
Published
JAN 1, 1988.
Physical Description
1 electronic document
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Summary
Elasticity of the liner and its effects on cavitation were numerically determined for a squeeze film damper subjected to dynamic loading. The loading was manifested as a prescribed motion of the rotor undergoing noncentered circular whirl. The boundary conditions were implemented using Elrod's algorithm which conserves lineal mass flux through the moving cavitation bubble as well as the oil film region of the damper. Computational movies were used to analyze the rapidly changing pressures and vapor bubble dynamics throughout the dynamic cycle for various flexibilities in the damper liner. The effects of liner elasticity on cavitation were only noticeable for the intermediate and high values of viscosity used in this study.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19900004470.
Accession ID: 90N13786.
NAS 1.15:102392.
NASA-TM-102392.
E-4224.
AD-A217846.
AVSCOM-TM-89-C-012.
Nordic Symposium on Tribology; 26-29 Jun. 1988; Trondheim; Norway.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15688074