Active method and installation for the reduction of buffeting of the wings of an aircraft

US4706902A · kind A · utility

Assignee

• OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AÉROSPATIALES · FR

Inventors

• Roger Destuynder · Noisy-le-Sec, FR
• Jacques Bouttes · Paris, FR
• Philippe Poisson-Quinton · Paris, FR

Key dates

• Filing date: May 6, 1985
• Grant date: Nov 17, 1987
• Expiry date: May 6, 2005

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/30
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

To reduce buffeting caused by separation on the wings of an aircraft, a parameter representing the buffeting in amplitude, frequency and phase is measured. The measuring signal is subjected to filtering intended to establish the characteristics of at least one mode of vibration of the wings and, by actuating a control surface according to a non-stationary law, in a localized region the wings, of alternate stresses are generated whose amplitude and phase are automatically determined to dampen one or several modes of vibration of the wings.