Comparative study between two different active flutter suppression systems

E. Nissim

Research output: Contribution to journalArticlepeer-review


An activated leading-edge (LE) - trailing-edge (TE) control system is applied to a drone aircraft with the objective of enabling the drone to fly subsonically at dynamic pressures which are 44% above the open-loop flutter dynamic pressure. The control synthesis approach is based on the aerodynamic energy concept and it incorporates recent developments in this area. A comparison is made between the performance of the activated LE-TE control system and the performance of a TE control system, analyzed in a previous work. The results obtained indicate that although all the control systems achieve the flutter suppression objectives, the TE control system appears to be somewhat superior to the LE-TE control system, in this specific application. This superiority is manifested through reduced values of control surface activity over a wide range of flight conditions.

Original languageEnglish
Pages (from-to)843-848
Number of pages6
JournalJournal of Aircraft
Issue number12
StatePublished - Dec 1978
Externally publishedYes


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