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Proc. ASME. GT2020, Volume 12: Wind Energy, V012T42A014, September 21–25, 2020
Paper No: GT2020-15705
... validations of the nonlinear frequency domain solution method against the conventional time domain solution method reveal that the proposed frequency domain solution method can reduce the computational cost by one to two orders of magnitude. wind turbines aerodynamics aeroelasticity computational...
Ryan C. McGowan, David W. Fellows, Daniel J. Bodony, Jovany R. Mojica, James J. Pieri, Chol-Bum M. Kweon, Joseph A. Gibson, Rik D. Meininger, Marshall R. Musser
Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T20A022, September 21–25, 2020
Paper No: GT2020-15661
... aeroelasticity aircraft compression-ignition engine fluid–structure interaction flutter resonance turbocharger turbomachinery vibration Abstract To investigate the effect of altitude on vibrations in a turbocharger, an aircraft compression-ignition engine was operated in both a sea...
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A022, September 21–25, 2020
Paper No: GT2020-15959
... low-pressure turbines computational fluid dynamics fluid-structure interaction aeroelasticity direct numerical simulation method harmonic balance method Abstract Modern aeronautical Low-Pressure Turbines (LPTs) are prone to aeroelastic instability problems such as flutter. The...
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A012, September 21–25, 2020
Paper No: GT2020-15083
... aeroelasticity flutter aeromechanics Abstract The consideration of aeromechanics plays a vital role in the design of machines that operate under aerodynamic forces, such as turbomachinery, and aircraft. The structure of those machines is subject to aeromechanical dynamics, including...
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A020, September 21–25, 2020
Paper No: GT2020-15563
... aeroelasticity labyrinth seal self-exited vibrations flutter traveling wave ANSYS CFX Abstract The investigation subject is an Oil Collector Case which is a thin axisymmetric stator part with console binding to the turbine rear frame. It had been suffering from high level vibrations...
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A013, September 21–25, 2020
Paper No: GT2020-15123
... low pressure turbines inlet distortion aeroelasticity unsteady aerodynamics forced response rotor vibrations strain gauges Abstract The design of modern aero engines enhances the interaction between components and facilitates the propagation of circumferential distortions of total...
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A007, September 21–25, 2020
Paper No: GT2020-14750
... predicted by an in-house integrated time-domain aeroelasticity code. The three dimensional, time-accurate, unsteady Reynolds-Averaged Navier-Stokes equations are solved in fluid domain, and the structural dynamic equations of blade vibration are solved with a modal superimposition method. Mode shapes and...
Proc. ASME. GT2013, Volume 7B: Structures and Dynamics, V07BT33A006, June 3–7, 2013
Paper No: GT2013-94730
... The trend in modern compressor design is towards higher stage loading and less structural damping, resulting in increased flutter risk. The understanding of the underlying aeroelastic effects, especially at highly loaded BLISK rotors, is small. This paper reports on the analysis of flutter...
Proc. ASME. GT2008, Volume 5: Structures and Dynamics, Parts A and B, 849-859, June 9–13, 2008
Paper No: GT2008-51467
... propriate phase difference between original blade and the active oscillation of the piezoelectric device. tive oscillation was, however, found to generate zation effect if the phase was inappropriate. ds: aeroelasticity; cascade flutter; active control; smart ; piezoelectric device] UCTION ve control of...
Proc. ASME. GT2006, Volume 5: Marine; Microturbines and Small Turbomachinery; Oil and Gas Applications; Structures and Dynamics, Parts A and B, 1091-1100, May 8–11, 2006
Paper No: GT2006-90645
... aeroelasticity cascade flutter active control smart structure Possibility of active control on cascade flutter with piezoelectric device was both experimentally and numerically studied under a subsonic condition. A blade on which a piezoelectric device was glued was installed in the...