... chaos friction hydrodynamics impact (mechanical) rings (structures) rotors seals (stoppers) stators vibrations It is supposed that the rotor describes a centered, uniform, circular whirl. This assumption supposes that the rotor whirl is not influenced by the response of the floating...

... more influence on effective damping levels and crossover frequencies when compared to rotor speed. 12 04 2011 30 06 2011 27 01 2012 27 01 2012 compressors mechanical testing rotors seals (stoppers) shock absorbers The balance piston seal or center seal...

... flow pumps rotors seals (stoppers) two-phase flow vibration control viscosity Annular (damper) seals restrict secondary leakage between stages in centrifugal pumps and compressors. The working fluid is a process liquid of light viscosity or a process gas. Annular seals, although similar...

... of the whole stator. 17 04 2011 01 05 2011 07 11 2011 07 11 2011 friction mechanical contact polynomials rotors seals (stoppers) Black [( 1 )] first examined forward precessional full annular rub with a model to include both rotor and stator masses along...

... along the flow direction. 07 10 2010 06 03 2011 18 05 2011 18 05 2011 flow simulation flowmeters Navier-Stokes equations numerical analysis pressure measurement rotational flow seals (stoppers) turbines turbulence staggered labyrinth seal leakage flow...

... the stability measurements carried out on two compressors (390 bars and 655 bars discharge pressure) and compares the results. 09 04 2010 13 04 2010 10 03 2011 10 03 2011 compressors finite element analysis mechanical stability pistons rotors seals (stoppers) shock absorbers...

... investigation. The flow solver also provided detailed physical insight into the cavity flow instability mechanism. 26 04 2010 29 04 2010 29 10 2010 29 10 2010 aeroacoustics channel flow external flows flow instability flow simulation Navier-Stokes equations seals (stoppers...

... J. Eng. Gas Turbines Power 0742-4795 , 124 , pp. 140 – 146 . 10.1115/1.1403460 08 10 2009 11 01 2010 30 08 2010 30 08 2010 flow honeycomb structures Mach number Navier-Stokes equations seals (stoppers) surface discharges honeycomb seal leakage flow...

... in labyrinth honeycomb seals. 03 03 2009 17 06 2009 16 03 2010 16 03 2010 flow simulation honeycomb structures Navier-Stokes equations seals (stoppers) labyrinth honeycomb seal leakage flow numerical simulation The increasing demand for aggressive power output...

... 2009 26 01 2010 26 01 2010 aerospace engines damping distortion elasticity friction gas turbines hydrodynamics rotors seals (stoppers) shafts wear Parasitic secondary flow (seal leakage) in gas turbines represents a considerable loss in power delivery with an increase...

... 04 04 2008 13 04 2009 machinery nonlinear systems seals (stoppers) vibration control Squeeze film dampers (SFDs) aid to reduce synchronous vibration amplitude and enhance stability characteristics in rotating machinery. Since first formally tested by Cooper ( 1 ) more than 40...

... Not given Comparison of GXMM247 to literature ( 23 24 25 26 ) 10 01 2008 28 05 2008 22 12 2008 aerospace industry aerospace test facilities eddy current testing fatigue cracks gas turbines jet engines seals (stoppers) NASA’s high temperature high...

... gas turbines hydrodynamics leak detection loss measurement rotors seals (stoppers) shafts turbomachinery Current and future operational conditions in turbomachinery, i.e., increasing pressure differentials, operating temperatures, and rotational speeds, demand effective interface...

... testing orifices (mechanical) seals (stoppers) vibration control Squeeze film dampers (SFDs) are widely employed to reduce rotor vibration or to suppress instabilities in rotating machinery equipment. Main applications of SFD include aircraft jet engines and process gas compressors...

... aerodynamics compressors design engineering impellers machine bearings machinery production industries magnetic bearings mechanical stability rotors seals (stoppers) rotordynamic coefficients rotor stability impeller-shroud forces magnetic-bearing exciter The “Kaybob” compressor...

... pressures. 26 04 2007 07 05 2007 11 01 2008 blades design engineering leak detection pressure measurement seals (stoppers) turbomachinery The work presented in this paper was conducted at Texas A&M University’s Turbomachinery Laboratory and was funded...

... 2008 compressors damping seals (stoppers) stators Injection compressors require comparatively long annular seals with high-pressure drops that have a significant impact on rotordynamics. The balance-piston seal for straight-through compressor absorbs the full head rise of the machine...

... to that for the contact seal. Outlined as well are the flow features influencing the bristle dynamics. 15 03 2004 15 07 2007 09 01 2008 computational fluid dynamics fibres porous materials rotors sealing materials seals (stoppers) wear Sealing in turbomachinery is a crucial technology...

...Dara Childs 03 01 2007 05 01 2007 seals (stoppers) gas turbines elastic constants confined flow The authors’ predictions that choked flow in an annular gas seal is likely to produce negative direct stiffness was recently borne out in tests conducted...

...Mihai Arghir 03 01 2007 04 01 2007 seals (stoppers) confined flow laminar to turbulent transitions laminar flow turbulence surface roughness The authors are grateful for this experimental validation of the negative direct static stiffness of choked annular seals...