Nonlinear LCO aspects in Burst and S&L test maneuvers of fighter aircraft

Christopher C. Chabalko, Muhammad R. Hajj

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

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.

Original languageEnglish
Title of host publicationCollection of Technical Papers - 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
Pages779-798
Number of pages20
DOIs
StatePublished - 2007
Event48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference - Waikiki, HI, United States
Duration: 23 Apr 200726 Apr 2007

Publication series

NameCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Volume1
ISSN (Print)0273-4508

Conference

Conference48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
Country/TerritoryUnited States
CityWaikiki, HI
Period23/04/0726/04/07

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