TY - GEN
T1 - Nonlinear LCO aspects in Burst and S&L test maneuvers of fighter aircraft
AU - Chabalko, Christopher C.
AU - Hajj, Muhammad R.
PY - 2007
Y1 - 2007
N2 - Nonlinear aspects of LCO in burst and straight and level (S&L) test maneuvers of fighter aircraft are identified. The linear and nonlinear relations between the flaperon's excitation and the response of the wing tip and underwing launchers during burst maneuvers of flight tests are analyzed. The results show high levels of linear and nonlinear coupling between the excitation frequency and the response of the wing tip launcher. The relation between the flaperon's excitation and vertical response of the underwing launcher show different characteristics. Particularly, there is no quadratic relation between the excited fiaperon and the response of the underwing launcher. These aspects are compared to aspects determined from linear and nonlinear analysis of the same relation in S&L testing conditions. The results show that nonlinear aspects of LCO encountered in the Burst and S&L tests are different.
AB - Nonlinear aspects of LCO in burst and straight and level (S&L) test maneuvers of fighter aircraft are identified. The linear and nonlinear relations between the flaperon's excitation and the response of the wing tip and underwing launchers during burst maneuvers of flight tests are analyzed. The results show high levels of linear and nonlinear coupling between the excitation frequency and the response of the wing tip launcher. The relation between the flaperon's excitation and vertical response of the underwing launcher show different characteristics. Particularly, there is no quadratic relation between the excited fiaperon and the response of the underwing launcher. These aspects are compared to aspects determined from linear and nonlinear analysis of the same relation in S&L testing conditions. The results show that nonlinear aspects of LCO encountered in the Burst and S&L tests are different.
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U2 - 10.2514/6.2007-1768
DO - 10.2514/6.2007-1768
M3 - Conference contribution
AN - SCOPUS:34547528425
SN - 1563478927
SN - 9781563478925
T3 - Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
SP - 779
EP - 798
BT - Collection of Technical Papers - 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
T2 - 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
Y2 - 23 April 2007 through 26 April 2007
ER -