scholarly journals Frequency Domain Approach for Transonic Unsteady Aerodynamic Modelling applied to a 3D Wing

2016 ◽  
Author(s):  
Adrien Poncet-Montanges ◽  
Jonathan E. Cooper ◽  
Dorian Jones ◽  
Ann Gaitonde ◽  
Yves Lemmens
Keyword(s):  
Frequency Domain ◽  
Unsteady Aerodynamic ◽  
Aerodynamic Modelling ◽  
Frequency Domain Approach ◽  
3D Wing

scholarly journals Frequency Domain Approach for Transonic Aerodynamic Modelling

2016 ◽  
Author(s):  
Adrien Poncet-Montanges ◽  
Jonathan E. Cooper ◽  
Dorian Jones ◽  
Ann Gaitonde ◽  
Yves Lemmens
Keyword(s):  
Frequency Domain ◽  
Aerodynamic Modelling ◽  
Frequency Domain Approach

scholarly journals Frequency Domain Approach for Transonic Aerodynamic Modelling Applied to a Viscous Wing

2017 ◽  
Author(s):  
Adrien Poncet-Montanges ◽  
Dorian Jones ◽  
Ann Gaitonde ◽  
Jonathan E. Cooper ◽  
Yves Lemmens
Keyword(s):  
Frequency Domain ◽  
Aerodynamic Modelling ◽  
Frequency Domain Approach

Aerodynamic Asymmetry Analysis of Unsteady Flows in Turbomachinery

2009 ◽  
Vol 132 (1) ◽  
Author(s):  
Kivanc Ekici ◽  
Robert E. Kielb ◽  
Kenneth C. Hall
Keyword(s):  
Harmonic Balance ◽  
Coupling Effect ◽  
Unsteady Flows ◽  
Unsteady Aerodynamic ◽  
Blade Row ◽  
Balance Technique ◽  
Turbomachinery Blades ◽  
Aerodynamic Asymmetry ◽  
Frequency Domain Approach ◽  
Harmonic Balance Technique

A nonlinear harmonic balance technique for the analysis of aerodynamic asymmetry of unsteady flows in turbomachinery is presented. The present method uses a mixed time-domain/frequency-domain approach that allows one to compute the unsteady aerodynamic response of turbomachinery blades to self-excited vibrations. Traditionally, researchers have investigated the unsteady response of a blade row with the assumption that all the blades in the row are identical. With this assumption the entire wheel can be modeled using complex periodic boundary conditions and a computational grid spanning a single blade passage. In this study, the steady/unsteady aerodynamic asymmetry is modeled using multiple passages. Specifically, the method has been applied to aerodynamically asymmetric flutter problems for a rotor with a symmetry group of 2. The effect of geometric asymmetries on the unsteady aerodynamic response of a blade row is illustrated. For the cases investigated in this paper, the change in the diagonal terms (blade on itself) dominated the change in stability. Very little mode coupling effect caused by the off-diagonal terms was found.

scholarly journals A frequency‐domain approach for damage detection in welded structures

2021 ◽  
Author(s):  
Camilla Ronchei ◽  
Sabrina Vantadori ◽  
Andrea Carpinteri ◽  
Ignacio Iturrioz ◽  
Roberto Issopo Rodrigues ◽  
...  
Keyword(s):  
Damage Detection ◽  
Frequency Domain ◽  
Welded Structures ◽  
Frequency Domain Approach

A frequency domain approach to residual generation for the industrial actuator benchmark

1995 ◽  
Vol 3 (12) ◽  
pp. 1747-1750 ◽  
Author(s):  
E. Alcorta García ◽  
B. Köppen-Seliger ◽  
P.M. Frank
Keyword(s):  
Frequency Domain ◽  
Frequency Domain Approach ◽  
Residual Generation
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