TY  - JOUR
AU  - Malher, A
AU  - Touzé, C
AU  - Doaré, O
AU  - Habib, Giuseppe
AU  - Kerschen, G
TI  - Flutter Control of a Two-Degrees-of-Freedom Airfoil Using a Nonlinear Tuned Vibration Absorber
JF  - JOURNAL OF COMPUTATIONAL AND NONLINEAR DYNAMICS
J2  - J COMPUT NONLIN DYN
VL  - 12
PY  - 2017
IS  - 5
SN  - 1555-1415
DO  - 10.1115/1.4036420
UR  - https://m2.mtmt.hu/api/publication/3260269
ID  - 3260269
AB  - The influence of a nonlinear tuned vibration absorber (NLTVA) on the airfoil flutter is investigated. In particular, its effect on the instability threshold and the potential subcriticality of the bifurcation is analyzed. For that purpose, the airfoil is modeled using the classical pitch and plunge aeroelastic model together with a linear approach for the aerodynamic loads. Large amplitude motions of the airfoil are taken into account with nonlinear restoring forces for the pitch and plunge degrees-of-freedom. The two cases of a hardening and a softening spring behavior are investigated. The influence of each NLTVA parameter is studied, and an optimum tuning of these parameters is found. The study reveals the ability of the NLTVA to shift the instability, avoid its possible subcriticality, and reduce the limit cycle oscillations (LCOs) amplitude. Copyright © 2017 by ASME.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Kalmár-Nagy, Tamás
AU  - Csikja, Rudolf
AU  - Elgohary, T
TI  - Nonlinear analysis of a 2-DOF piecewise linear aeroelastic system
JF  - NONLINEAR DYNAMICS
J2  - NONLINEAR DYNAM
VL  - 85
PY  - 2016
IS  - 2
SP  - 739
EP  - 750
PG  - 12
SN  - 0924-090X
DO  - 10.1007/s11071-016-2719-z
UR  - https://m2.mtmt.hu/api/publication/2994999
ID  - 2994999
LA  - English
DB  - MTMT
ER  -