Accession Number:

ADA090097

Title:

Report on a Cooperative Programme on Active Flutter Suppression,

Descriptive Note:

Corporate Author:

ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT NEUILLY-SUR-SEINE (FRANCE)

Personal Author(s):

• Hwang,C.
• Johnson,E. H.
• Mills,G. R.
• Noll,T. E.
• Farmer,M. G.

Report Date:

1980-08-01

Pagination or Media Count:

57.0

Abstract:

Four short presentations were made to the Sub-Committee on Aeroelasticity, during the 50th Meeting of the Structures and Materials Panel, on the results of a cooperative programme on active flutter suppression on a dynamic model of the YF-17 aircraft. During this programme, British Aerospace, MBB, Northrop, Air Force Flight Dynamics Laboratory, NASA and ONERA cooperated in deriving control laws for active flutter suppression for one explosive wing-store flutter case of the model. Phase control laws were all tested and compared during wind tunnel tests performed in the Langley 16 ft wind tunnel in October 1979. Results were quite promising and open the way for future cooperation on full-scale aircraft. Topics include Wind Tunnel Test of a Fighter Aircraft WingStore Flutter Suppression System Active Control of an Explosive Wing-Store Flutter Case Essais en Soufflerie sur une Maquette de lAvion YF 17 Concernant Le Flottement dune Combinaison Aile-Engin and The B. Ae Control Law.

Descriptors:

• *FLUTTER
• CONTROL
• DYNAMIC RESPONSE
• AEROELASTICITY
• AERODYNAMIC FORCES
• WIND TUNNEL TESTS
• EXTERNAL STORES
• JET FIGHTERS
• CONTROL THEORY
• SUPPRESSION
• TRANSONIC CHARACTERISTICS

Subject Categories:

• Aerodynamics
• Attack and Fighter Aircraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE