Panel flutter and aerodynamic noise attenuation through aero-servo-viscoelastic controls

Craig G. Merrett, Harry H. Hilton

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Dynamic responses of linear viscoelastic flat panels (plates) under the influence of aerodynamic noise are formulated and examined. Three modes of potential failures are considered, namely panel flutter, creep buckling and material failure such as composite fiber delamination. Differential, integral or proportional servo-controlers are added in order to stabilize the system and extend its lifetime. Parametric studies of servo-controllers led to no general conclusion because of the highly complicated phase relations. However, the simulations indicate that an increase in servo control parameters does not necessarily lead to an increase in flutter velocity.

Original languageEnglish (US)
Title of host publication17th AIAA/ASME/AHS Adaptive Structures Conf., 11th AIAA Non-Deterministic Approaches Conf., 10th AIAA Gossamer Spacecraft Forum, 5th AIAA Multidisciplinary Design Optimization Specialist Conf., MDO
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781563479731
DOIs
StatePublished - 2009

Publication series

NameCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
ISSN (Print)0273-4508

Keywords

  • Aero-servo-viscoelasticity
  • Failure probability
  • Panel flutter
  • Servo controls
  • Structural control
  • Survival times
  • Viscoelasticity

ASJC Scopus subject areas

  • Architecture
  • General Materials Science
  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint

Dive into the research topics of 'Panel flutter and aerodynamic noise attenuation through aero-servo-viscoelastic controls'. Together they form a unique fingerprint.

Cite this