... their influence on the dynamic response and to define the required accuracy of the input parameters. 03 05 2011 07 05 2011 09 01 2012 09 01 2012 blades damping discs (structures) fatigue friction mechanical contact shock absorbers torsion turbines vibrations...

... 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...

.../1.2181998 01 06 2010 02 06 2010 06 05 2011 06 05 2011 blades discs (structures) mechanical contact vibrations Bladed disks and other gas-turbine structures comprise contact interfaces with friction, gap, and other types of nonlinear contact interactions. High...

... analysis Galerkin method iterative methods mechanical contact reduced order systems steam turbines thermal stresses time-domain analysis vibrations The rotor blades of a low pressure (LP) steam turbine stage are subjected to high static and dynamic loads during operation. The static loads...

... reduce contact stresses by an additional 10%. 14 04 2009 07 05 2009 30 03 2010 30 03 2010 failure (mechanical) fatigue finite element analysis gas turbines mechanical contact Single tooth attachments or “dovetails” are used to secure fan and compressor blades...

... friction mechanical contact turbomachinery wear Relative displacements with DLFT and integration Relative displacements with polynomial DLFT Two methods to predict wear and vibration response have been proposed. The efficiency of the first numerical method—DLFT and time...

... 2008 13 07 2009 gears mechanical contact valves As valve train designs are required to meet the ever higher demands of the market, individual component optimization in the context of overall valve train system optimization becomes crucial to producing the required system...

... mechanical contact wear 18 06 2008 30 06 2008 12 02 2009 2009 American Society of Mechanical Engineers ...

... 14 04 2008 30 12 2008 blades damping discs (structures) engines finite element analysis friction mechanical contact sensitivity analysis The resonance forced response levels and values of the resonance frequencies are of primary interests in the majority of investigations...

... mechanical contact 21 05 2007 17 06 2007 09 04 2008 2008 American Society of Mechanical Engineers ...

... Verschiedenen Betriebszuständen ,” MS thesis, Institut für Thermische Strömungsmaschinen, Unniversitä Stuttgart. 03 07 2007 09 11 2007 03 04 2008 aerodynamics assembling blades damping engines fasteners friction iterative methods mechanical contact surface roughness turbines...

... is an optimization problem and its solution can be efficiently made using approximations given by Eqs. 3 , 4 . 27 04 2007 24 05 2007 29 02 2008 blades discs (structures) finite element analysis friction mechanical contact sensitivity analysis shock absorbers stochastic processes...

...) elasticity finite element analysis friction mechanical contact shock absorbers Due to the high modal density of natural frequencies of realistic bladed disks and of a broad spectrum of aerodynamic excitation forces, complete prevention of the occurrence of resonance regimes is not feasible. Hence...

... for the four normal loads. The results of the measurements will be shown in Sec. 4 where they will be compared with the predictions. 14 06 2006 06 07 2006 friction shock absorbers mechanical contact elastic constants vibrations blades Friction dampers are used in gas...

... by the ASME Headquarters March 12, 2004. Associate Editor: D. Assanis. 20 January 2003 12 March 2004 09 02 2005 engines ball bearings friction lubrication thermal properties heat transfer mechanical contact rotation The study reported here is concerned with friction...

.... stators aerospace engines sliding friction damping mechanical contact mechanical testing parameter estimation modelling 04 June 2001 01 Dec 2000 01 Mar 2001 24 09 2002 Contributed by the International Gas Turbine Institute (IGTI) of THE AMERICAN SOCIETY OF MECHANICAL...

.... 1999; final revision received by ASME Headquarters Feb. 2000. Associate Editor: D. Wisler. 08 May 2000 01 11 1999 01 02 2000 26 03 2002 mechanical contact fatigue cracks stress analysis failure (mechanical) gas turbines...

.... engines lubrication interface phenomena sliding friction mechanical contact flow simulation temperature rheology wetting Much effort has been made in the past to describe the lubrication of the interface between the piston rings and the cylinder liner. Early work in this field focused...

... to reduce the maximum normalized relative misalignment between seal faces and, therefore, eliminate seal face contact. Clearance is measured by proximity probes and varied through a pneumatic adjustment mechanism. Contact is determined phenomenologically from pattern recognition of probe signals...

... rotors compressors machining machine tools mechanical contact numerical control reliability To efficiently machine turbomachinery components such as centrifugal compressors, axial compressors, and fans having complex, overlapping surfaces, five-axis numerically controlled (NC) machine tools...