Adaptive modal identification for flutter suppression control

Nhan T. Nguyen, Michael Drew, Sean S. Swei

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

1 Scopus citations


In this paper, we will develop an adaptive modal identification method for identify- ing the frequencies and damping of a utter mode based on model-reference adaptive control (MRAC) and least-squares methods. The least-squares parameter estimation will achieve parameter convergence in the presence of persistent excitation whereas the MRAC parameter estimation does not guarantee parameter convergence. Two adaptive utter suppression control approaches are developed: one based on MRAC and the other based on the least-squares method. The MRAC utter suppression control is designed as an integral part of the parameter estimation where the feedback signal is used to estimate the modal information. On the other hand, the separation principle of control and estimation is applied to the least-squares method. The least-squares modal identification is used to perform parameter estimation.

Original languageBritish English
Title of host publicationAIAA Infotech @ Aerospace Conference
StatePublished - 2016
EventAIAA Infotech @ Aerospace Conference, 2016 - San Diego, United States
Duration: 4 Jan 20168 Jan 2016

Publication series

NameAIAA Infotech @ Aerospace Conference


ConferenceAIAA Infotech @ Aerospace Conference, 2016
Country/TerritoryUnited States
CitySan Diego


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