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Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A020, September 21–25, 2020
Paper No: GT2020-15008
... hydrodynamical characteristics and dynamic stiffness and damping coefficients of hybrid and hydrostatic bearings with increased accuracy and which can be used for engineering/design purposes. The developed approach is based on Reynold’s equations, where the unknown parameters are the rotor position and fluid...
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A005, June 17–21, 2019
Paper No: GT2019-90195
...Abstract Abstract Controversy regarding the dynamic modeling of tilting-pad journal bearings (TPJB) has existed for years, with the question of the effective stiffness and damping properties, and the requirement for consideration of frequency dependency, being of great concern...
Proc. ASME. GT2012, Volume 5: Manufacturing Materials and Metallurgy; Marine; Microturbines and Small Turbomachinery; Supercritical CO2 Power Cycles, 837-846, June 11–15, 2012
Paper No: GT2012-69403
... 1 Copyright © 2012 by ASME CHARACTERIZATION OF STIFFNESS AND DAMPING IN TEXTURED SECTOR-PAD MICRO- THRUST BEARINGS USING COMPUTATIONAL FLUID DYNAMICS C.I. Papadopoulos School of Naval Architecture and Marine Engineering, National Technical University of Athens, 15710 Zografos, Greece P.G...
Proc. ASME. GT2010, Volume 6: Structures and Dynamics, Parts A and B, 11-23, June 14–18, 2010
Paper No: GT2010-22058
... allows determining direct and cross-coupled stiffness coefficients of the seal by integrating measured circumferential pressure distribution in cavities at various shaft eccentric positions. In the dynamic method, identification of stiffness and damping coefficients is based on the rotor excitation using...
Proc. ASME. GT2009, Volume 6: Structures and Dynamics, Parts A and B, 657-667, June 8–12, 2009
Paper No: GT2009-59173
... and inlet pressures. Generally, the rotordynamic performance degrades at other operating conditions. Additional study for the seals with enlarged clearance is carried out to model effect of wear. leakage stiffness damping whirl-frequency ratio diverging taper converging taper computational fluid...
Proc. ASME. GT2006, Volume 5: Marine; Microturbines and Small Turbomachinery; Oil and Gas Applications; Structures and Dynamics, Parts A and B, 1197-1202, May 8–11, 2006
Paper No: GT2006-90280
... 23 09 2008 Tilting-pad journal bearings (TPJB) dominate as rotor supports in high speed rotating machinery. The paper analyzes frequency effects on the TPJB’s stiffness and damping characteristics based on experimental and theoretical investigations. The experimental investigation has...