Computational and experimental studies of horizontal tail flutter suppression. (January 2019)

• Record Type: Journal Article
• Authors: Khan, Abid Ali; Ashraf, Muhammad Arif; Shehzad, Asim; Qazi, Abroon Jamal; Hayat, Imran
• Is Part Of: Proceedings of the Institution of Mechanical Engineers. Volume 233:Number 1(2019)
• Page Start: 34
• Page End: 43
• Publication Date: 2019-01
• Subjects: Aeroelasticity -- flutter -- saw tooth -- structural dynamics -- vibration modes and resonance; Aeronautics -- Periodicals; Astronautics -- Periodicals; Airplanes -- Design and construction -- Periodicals; Aerospace industries -- Periodicals; 629.1
• DOI: 10.1177/0954410017725363
• Languages: English
• ISSNs: 0954-4100

Abstract

Flutter is an extremely violent instability that may result in catastrophic failure. Thus, flutter clearance test is one of the critical phases in qualification of an aircraft's airworthiness. During design and development process of an aircraft, flutter problems were experienced on an aerodynamic surface (horizontal tail). In order to tackle the observed problem, a number of approaches to optimize the design for flutter speed were computationally and experimentally studied and evaluated. This paper presents and discusses the outcomes of these studies. A hybrid approach based on evaluations and design change constraints has been proposed to suppress the flutter of the horizontal tail.