WIT Press


Experimental Evaluation Of Wire Mesh Bearing Dampers At Cryogenic Conditions

Price

Free (open access)

Paper DOI

10.2495/MC030091

Volume

43

Pages

14

Published

2003

Size

505.46 kb

Author(s)

E. M. AL Khateeb, B. H. Ertas, J. M. Vance

Abstract

Mechanical and fluid dampers have been placed at bearing locations in turbomachinery to stabilize and attenuate vibration levels. Wire mesh, a material formed by compressing woven wires into the desired shape, possesses significant amounts of damping. As part of a broader effort to study the effects of different design factors, ring shaped wire mesh elements made of different materials and compression densities were tested to compound an understanding of how stiffness and damping behave in a cryogenic environment. The dynamic response to periodic excitations at cryogenic temperatures was compared to that of ambient conditions. Experimental results presented in this paper show the variation of stiffness and damping with temperature in addition to specific ma

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