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Keywords: discs (structures)
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Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2012, 134(3): 032507.
Published Online: January 9, 2012
... 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...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. December 2011, 133(12): 122502.
Published Online: August 26, 2011
... dynamics damping discs (structures) elasticity principal component analysis As a result of manufacturing imperfection, or field damage, small geometry variations often exist among blades on a turbomachinery rotor. This condition, referred to as geometric blade mistuning [( 1 2 3 4 5...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. October 2011, 133(10): 102503.
Published Online: May 6, 2011
...: (i) at blade roots, (ii) between interlock shrouds, and (iii) at underplatform dampers. The numerical properties of the method are thoroughly studied on a number of special test cases. 01 06 2010 02 06 2010 06 05 2011 06 05 2011 blades discs (structures) mechanical...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. October 2011, 133(10): 102502.
Published Online: April 28, 2011
... amplification blades damping discs (structures) fatigue vibrations Blade vibration has been a major problem in gas turbines since the early days of their development ( 1 ). One of the contributing factors is that small differences between nominally identical blades, known as mistuning, can lead...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. July 2011, 133(7): 072501.
Published Online: March 10, 2011
... and design decisions. 08 04 2010 09 04 2010 10 03 2011 10 03 2011 aerodynamics blades damping discs (structures) statistical analysis Realistic bladed disks, although designed mostly to be cyclically symmetric, are mistuned, i.e., dynamic properties of individual...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2011, 133(3): 032502.
Published Online: November 11, 2010
... on the generated force are also presented. Examples of experimental tests that can be performed on a dummy integral bladed disk (blisk) mounted on the rig are described in the end. 11 05 2010 03 06 2010 11 11 2010 11 11 2010 blades discs (structures) electromagnets frequency response...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. November 2010, 132(11): 112502.
Published Online: August 10, 2010
... responses of a full model finite element analysis to those of a reduced-order model using the new reduction method. 05 05 2009 24 10 2009 10 08 2010 10 08 2010 blades discs (structures) finite element analysis modal analysis turbomachinery In the context...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. September 2010, 132(9): 092503.
Published Online: June 7, 2010
... forced response as compared with the tuned system. These findings were obtained on both single-degree-of-freedom per blade-disk models and a reduced order model of a blisk. 11 09 2008 18 09 2008 07 06 2010 07 06 2010 blades damping discs (structures) reduced order systems...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. August 2010, 132(8): 082105.
Published Online: May 20, 2010
... 2008 20 05 2010 20 05 2010 blades computerised numerical control discs (structures) fatigue internal stresses machine tools plasticity wear Fretting initiated fatigue has long been recognized as a major cause of blade dovetail and disk slot failures in aircraft turbine...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. May 2010, 132(5): 052504.
Published Online: March 5, 2010
... 2009 05 03 2010 05 03 2010 aerodynamics blades computational fluid dynamics damping discs (structures) gas turbines shock absorbers The key components necessary for a predictive forced response analysis of mistuned bladed disks can be identified as (i) determination...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. April 2010, 132(4): 042502.
Published Online: January 25, 2010
... 03 2009 03 04 2009 25 01 2010 25 01 2010 blades calibration discs (structures) finite element analysis It is well known that small differences among blades, called mistuning, can lead to severe increases in the maximum vibration amplitude and stress levels of bladed...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. July 2009, 131(4): 042501.
Published Online: April 9, 2009
... of the turbine section. 14 12 2007 11 11 2008 09 04 2009 blades discs (structures) failure (mechanical) failure analysis fatigue cracks finite element analysis gas turbine power stations mechanical testing nozzles stress analysis surface cracks turbogenerators vibrations...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. May 2009, 131(3): 032501.
Published Online: January 29, 2009
... by appropriate harmonic intentional mistuning. The proposed method can help us design a bladed disk, which is insensitive to dangerous random mistuning. 18 06 2007 16 09 2008 29 01 2009 aerospace engines blades design engineering discs (structures) robust control The bladed...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2009, 131(2): 022510.
Published Online: December 30, 2008
... 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...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2009, 131(2): 022505.
Published Online: December 23, 2008
... of harmonics employed by the harmonic balance method are examined. Finally, the prediction for a test case is compared with the test data to verify the developed method. 24 12 2007 17 03 2008 23 12 2008 blades damping discs (structures) elasticity friction turbines vibrations...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2009, 131(2): 022506.
Published Online: December 23, 2008
... for the maximum forced response amplification of a mistuned bladed disk is obtained from this description, and the results of the AMM are validated numerically using a simple mass-spring model. 07 04 2008 09 04 2008 23 12 2008 blades discs (structures) perturbation techniques springs...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. January 2009, 131(1): 012502.
Published Online: October 9, 2008
... is really straightforward and provides an efficient tool to observe and predict coupled phenomena. 31 03 2008 11 04 2008 09 10 2008 assembling blades discs (structures) kinematics rotors This study presents an industrial application of the authors’ reduction technique...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. July 2008, 130(4): 042503.
Published Online: April 29, 2008
... is identified from measured data. Measured and predicted response curves are compared with each other and the degree of correlation is discussed. 30 07 2007 30 07 2007 29 04 2008 discs (structures) friction shock absorbers test equipment vibrations Increased demand for higher...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. May 2008, 130(3): 032501.
Published Online: March 26, 2008
... to predict the FCG rate and, hence, life in single crystal components subject to mixed-mode fatigue loading. 16 10 2006 17 10 2006 26 03 2008 crack-edge stress field analysis discs (structures) fatigue cracks finite element analysis fracture mechanics nickel alloys superalloys...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2008, 130(2): 022503.
Published Online: February 29, 2008
... mistuning (e.g., see Ref. 20 ) are not considered here. 27 04 2007 24 05 2007 29 02 2008 blades discs (structures) finite element analysis friction mechanical contact sensitivity analysis shock absorbers stochastic processes vibrations Forced response of bladed...