Reference : Suppression of limit cycle oscillations with a nonlinear energy sink: experimental results
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Aerospace & aeronautics engineering
Engineering, computing & technology : Mechanical engineering
http://hdl.handle.net/2268/22609
Suppression of limit cycle oscillations with a nonlinear energy sink: experimental results
English
Hill, W. Joel [Texas A&M University, College Station, Texas, 77843 > Department of Aerospace Engineering > > >]
Strganac, Thomas W. [Texas A&M University, College Station, Texas, 77843 > Department of Aerospace Engineering > > >]
Lee, Young S. [University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801 > Department of Aerospace Engineering, > > >]
Kerschen, Gaëtan mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux >]
Vakakis, Alexander F. [National Technical University of Athens, Greece > Department of Mechanical & Industrial Engineering and Department of Aerospace Engineering > > >]
Bergman, Lawrence A. [University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801 > Department of Aerospace Engineering > > >]
2006
47th AIAA Structural Dynamics and Materials Conference, Newport, 2006
No
International
47th AIAA Structural Dynamics and Materials Conference
1 - 4 May 2006,
Newport, Rhode Island
USA
[en] limit cycle oscillations ; aircraft ; Future air vehicle ; nonlinear energy sink ; freedom aeroelastic system
[en] The presence of limit cycle oscillations within the flight envelopes of existing aircraft is well documented. Future air vehicle designs are also likely to encounter limit cycle oscillations under certain loading conditions. These steady-state constant amplitude oscillations are detrimental to mission effectiveness and lead to increased fatigue of aircraft structures. Previous efforts to suppress limit cycle oscillations have focused primarily on active control methods. These efforts have been effective but require significant measurement and control resources. In this study the investigators test a passive method for suppressing limit cycle behavior. A nonlinear energy sink, based on the principle of nonlinear energy pumping, is shown to be effective for increasing the stability threshold of a nonlinear two degree of freedom aeroelastic system.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/22609

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