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Author(s):
Kwanka, K. 
Title:
Dynamic Coefficients of Stepped Labyrinth Gas Seals (99-GT-20) 
Abstract:
Rotor-fluid interactions can cause self-excited shaft vibrations of high density turbomachinery. Often the amplitude of the vibrations reaches unacceptably high amplitudes and the scheduled power or running speed cannot be achieved. One of the most important sources of excitation is the flow through labyrinth seals. For a reliable design it is necessary to predict these forces exactly, including not only stiffness but also damping coefficients. As the forces in labyrinth gas seals are rather sma...    »
 
Journal title:
Journal for Gas Turbines and Power 
Year:
2000 
Journal volume:
122 
Journal issue:
Pages contribution:
473--477