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Keywords: Vibration
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Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2022, 144(5): 051003.
Paper No: GTP-21-1246
Published Online: February 21, 2022
...Patrick B. Lamas; Rodrigo Nicoletti Modal spacing (band gaps) in the frequency spectrum of rotating machines can be imposed by geometric periodicity. By designing the rotor with a geometry that repeats periodically, we can impose to the vibration response of the rotor a modal “gap” considerably...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2021, 143(9): 091024.
Paper No: GTP-20-1293
Published Online: August 9, 2021
... the overall vibration of the combined rotor significantly in practice. This paper studies the modeling of the crack on the bolt and nonlinear dynamic behaviors of the cracked bolt-disk rotor system. The circumferential bolts with a transverse open crack are treated as several bar elements under the assumption...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 011004.
Paper No: GTP-18-1279
Published Online: September 14, 2018
... vibration Vibration Flow induced noise In turbomachinery, randomly distributed factors, as the airflow, cause a random excitation of bladed disks, which have generally a nonlinear mechanical behavior. In the design process of such bladed disks, one uses mainly deterministic methods, linearized...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 011007.
Paper No: GTP-18-1287
Published Online: September 14, 2018
... Finite element Flow induced vibration Fuels Modeling Periodic Thermoacoustics Unsteady Unsteady flows Vibration Wave propagation Flow induced noise Combustion Can-annular combustors are common in heavy-duty land based gas turbines. In this design, the air flows from the compressor...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 011008.
Paper No: GTP-18-1289
Published Online: September 14, 2018
.... 22 06 2018 26 06 2018 Structural dynamics Vibration Turbine wheels of ship Diesel engine turbocharger applications are known to be prone to low engine order excitations (LEO) of fundamental blade modes. In particular, blade integrated disk (blisk) designs are suffering severe...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 011009.
Paper No: GTP-18-1293
Published Online: September 14, 2018
..., the prediction of labyrinth seals dynamics needs much more attention. Flow induced vibration Modeling Structural dynamics Vibration Flow induced noise 22 06 2018 25 06 2018 Manuscript received June 22, 2018; final manuscript received June 25, 2018; published online September 14...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2018, 140(12): 122501.
Paper No: GTP-18-1005
Published Online: August 6, 2018
... conversion Gas turbine technology Heat recovery Modeling Power systems Temperature Thermal Thermodynamics Turbines Two-phase Vibration Over the past years, the consumption of fossil fuel continues to grow [ 1 ] due to the increase in energy demand in both heat and electricity forms...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2018, 140(8): 082506.
Paper No: GTP-17-1530
Published Online: May 14, 2018
... . Manuscript received September 26, 2017; final manuscript received October 27, 2017; published online May 14, 2018. Editor: David Wisler. 26 09 2017 27 10 2017 Computational fluid dynamics Flow induced vibration Internal flow Swirling Vibration Flow induced noise Labyrinth...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2018, 140(8): 082701.
Paper No: GTP-17-1400
Published Online: April 26, 2018
... and in steam up to 42 krpm are presented to demonstrate the performance of this bearing. It is shown to have low subsynchronous vibration and reasonable damping through rigid shaft critical speeds. 1 Corresponding author. Contributed by the Vehicular and Small Turbomachines Committee of ASME...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2018, 140(7): 072506.
Paper No: GTP-17-1119
Published Online: April 16, 2018
... monitoring technique is spreading for health monitoring of the turbine blades. One of the main challenges of BTT method is identification of vibration parameters from one per revolution samples which is quite below Nyquist sampling rate. In this study, a new method for derivation of blade asynchronous...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2018, 140(8): 082501.
Paper No: GTP-17-1106
Published Online: April 12, 2018
... FOR G AS T URBINES AND P OWER . Manuscript received March 20, 2017; final manuscript received November 1, 2017; published online April 12, 2018. Assoc. Editor: Alexandrina Untaroiu. 20 03 2017 01 11 2017 Experimental Film Flow induced vibration Fluids Measurement techniques...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2018, 140(7): 072501.
Paper No: GTP-16-1443
Published Online: April 10, 2018
...M. J. Qu; G. Chen A finite element (FE) model of the rotor tester of an aero-engine, having a thin-walled casing structure, mounted with the way of an actual engine, is developed to simulate the intrinsic vibration characteristics under actual engine-mounting condition. First, a modal experiment...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2018, 140(7): 072505.
Paper No: GTP-17-1483
Published Online: April 10, 2018
...: David Wisler. 28 08 2017 13 09 2017 Aerospace applications Computational Computational mechanics Finite element Finite element methods Gas turbine technology Modeling Structural dynamics Vibration Computational modeling and numerical analysis are important tools...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2018, 140(7): 072502.
Paper No: GTP-17-1003
Published Online: April 10, 2018
... online April 10, 2018. Assoc. Editor: Jerzy T. Sawicki. 03 01 2017 12 10 2017 Design optimization Modeling Turbines Vibration The optimization of the rotordynamics of turbomachinery is an extensive subject. Urbiola-Soto et al. [ 1 ] provide a review of the many techniques...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2018, 140(6): 062505.
Paper No: GTP-17-1539
Published Online: April 5, 2018
... forced response functions (FRF) of the test case with a nominal damper are available for comparison. The comparison of different damper configurations offers a “high-level” validation of the pre-optimization procedure and highlights the strong influence of the blades mode of vibration on the damper...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2018, 140(6): 062401.
Paper No: GTP-17-1419
Published Online: February 27, 2018
... OURNAL OF E NGINEERING FOR G AS T URBINES AND P OWER . Manuscript received July 31, 2017; final manuscript received September 11, 2017; published online February 27, 2018. Editor: David Wisler. 31 07 2017 11 09 2017 Experimental Film Vibration Electrical submersible...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2018, 140(6): 062802.
Paper No: GTP-17-1018
Published Online: January 23, 2018
...Lidui Wei; Haijun Wei; Haiping Du; Shulin Duan To predict the vibration characteristics of the crankshaft of the larger marine diesel engine accurately and comprehensively, based on the finite element models of the crankshaft and the engine block reduced by a component mode synthesis (CMS) method...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2018, 140(6): 062602.
Paper No: GTP-17-1478
Published Online: January 17, 2018
...; published online January 17, 2018. Editor: David Wisler. 25 08 2017 25 09 2017 Equilibrium Finite element Finite element methods Fluids Modeling Structural dynamics Vibration Electric submersible pumps (ESPs) are widely used in oil production as dynamic pumps...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2018, 140(5): 052603.
Paper No: GTP-17-1406
Published Online: January 10, 2018
... effect has a known tendency to increase the dynamic stress, but it is also known to be difficult to predict the maximum vibration response before the operation. This paper studies the blade vibration of grouped blades in a low-pressure steam turbine. The study objectives are to characterize the vibration...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2018, 140(5): 052505.
Paper No: GTP-17-1273
Published Online: January 3, 2018
... response of multistage bladed disks have to take into account such nonlinear behavior and its effect in damping blades vibration. In this paper, a novel reduced order model (ROM) is proposed for studying nonlinear vibration due to contacts in multistage bladed disks. The methodology exploits the shape...