Flutter of Maneuvering Aircraft

AbstractThe objective of this paper is to investigate how the aeroelastic stability, particularly flutter, is affected by aircraft maneuvers. The authors’ investigation is based on a comprehensive mathematical model of aircraft, which is achieved by seamlessly integrating all the disciplines pertinent to flight of aircraft. The aircraft is treated as an unstrained, flexible multibody system subject to unsteady aerodynamics. The bodies are fuselage, wing, and horizontal and vertical stabilizers, whose structures are modeled as beams in bending and torsion. The equations of motion are derived using Lagrange’s equations in quasi-coordinates. The resulting equations are a set of nonlinear ordinary differential equations of relatively high order. The final model is used to determine flutter speeds of aircraft at steady level turn and steady climb at various altitudes. These maneuvers are especially chosen to keep the equations time invariant. The numerical results are given for a generic transport model (GTM)....

[1]  Mark H Lowenberg,et al.  Analysis of Flexible Aircraft Dynamics Using Bifurcation Methods , 2011 .

[2]  Thomas Michael Seigler,et al.  Dynamics and Control of Morphing Aircraft , 2005 .

[3]  S. A. Fazelzadeh,et al.  Nonlinear Flight Dynamics of a Flexible Aircraft Subjected to Aeroelastic and Gust Loads , 2012 .

[4]  Carlos E. S. Cesnik,et al.  Trajectory Control for Very Flexible Aircraft , 2006 .

[5]  David A. Peters,et al.  A State-Space Airloads Theory for Flexible Airfoils , 2006 .

[6]  Carlos E. S. Cesnik,et al.  Nonlinear Aeroelasticity and Flight Dynamics of High-Altitude Long-Endurance Aircraft , 2001 .

[7]  Leonard Meirovitch,et al.  Unified theory for the dynamics and control of maneuvering flexible aircraft , 2004 .

[8]  Carlos E. S. Cesnik,et al.  Nonlinear Aeroelasticity of a Very Flexible Blended-Wing-Body Aircraft , 2009 .

[9]  Ilhan Tuzcu,et al.  Flight Dynamics of Flexible Aircraft with Aeroelastic and Inertial Force Interactions , 2009 .

[10]  Piergiovanni Marzocca,et al.  Non-linear aeroelastic investigations of store(s)-induced limit cycle oscillations , 2008 .

[11]  Joseba Murua,et al.  Applications of the unsteady vortex-lattice method in aircraft aeroelasticity and flight dynamics , 2012 .

[12]  Ilhan Tuzcu.  On the stability of flexible aircraft , 2008 .

[13]  Wolf Krüger.  A multi-body approach for modelling manoeuvring aeroelastic aircraft during preliminary design , 2008 .

[14]  Giulio Romeo,et al.  Stability and Control of a High-Altitude, Long-Endurance UAV , 2007 .

[15]  Leonard Meirovitch,et al.  Integrated Approach to the Dynamics and Control of Maneuvering Flexible Aircraft , 2003 .

[16]  Mark James Johnson,et al.  Finite-State Airloads for Deformable Airfoils on Fixed and Rotating Wings , 1994 .

[17]  Gexue Ren,et al.  Multibody Dynamic Approach of Flight Dynamics and Nonlinear Aeroelasticity of Flexible Aircraft , 2011 .

[18]  Martin Goland,et al.  Principles of aeroelasticity , 1975 .

[19]  D. Peters,et al.  Finite state induced flow models. I - Two-dimensional thin airfoil , 1995 .

[20]  L. Meirovitch,et al.  Predicting the response of low-aspect ratio, flexible aircraft , 2009, The Aeronautical Journal (1968).

[21]  Leonard Meirovitch,et al.  Control of Flexible Aircraft Executing Time-Dependent Maneuvers , 2005 .

[22]  Christian Reschke,et al.  Integrated Flight Loads Modelling and Analysis for Flexible Transport Aircraft , 2006 .

[23]  Dewey H. Hodges,et al.  Flight Dynamics of Highly Flexible Flying Wings , 2006 .

[24]  Ilhan Tuzcu,et al.  Nonlinear Aeroelasticity of a Flexible Wing Structure Coupled with Aircraft Flight Dynamics , 2012 .

[25]  Ilhan Tuzcu,et al.  Unsteady Aeroelasticity of Generic Transport Model , 2011 .

[26]  Michel van Tooren,et al.  Modified Inertially Coupled Equations of Motion for a Flexible Aircraft with Coupled Vibrations , 2009 .

[27]  Soon-Jo Chung,et al.  Dynamics and Performance of Tailless Micro Aerial Vehicle with Flexible Articulated Wings , 2012 .

[28]  Joseba Murua,et al.  Structural and Aerodynamic Models in Nonlinear Flight Dynamics of Very Flexible Aircraft , 2010 .

[29]  Ilhan Tuzcu,et al.  Aeroelastic Modeling and Adaptive Control of GTM , 2010 .

[30]  Dewey H. Hodges,et al.  Flight Dynamics of Highly Flexible Aircraft , 2008 .

[31]  Henrik Hesse,et al.  Consistent structural linearisation in flexible-body dynamics with large rigid-body motion , 2012 .

[32]  Mayuresh J. Patil,et al.  Flight Dynamics of High Aspect-Ratio Flying Wings: Effect of Large Trim Deformation , 2007 .

[33]  Mayuresh J. Patil,et al.  Flight Control for Flexible, High-Aspect-Ratio Flying Wings , 2010 .

[34]  Carlos E. S. Cesnik,et al.  Nonlinear Flight Dynamics of Very Flexible Aircraft , 2005 .