TY - GEN
T1 - Nonlinear modeling and control design of active helicopter blades
AU - Althoff, Matthias
AU - Patil, Mayuresh J.
AU - Traugott, Johannes P.
PY - 2006
Y1 - 2006
N2 - The paper presents the theoretical basis for the simulation of active helicopter blades. The analysis of active helicopter blades is based on models for the structure, aerodynamics, actuation and sensing. For simulation and analysis purposes, the blade structural model is discretized in space using a Galerkin approach. The effect of the integral actuation enters the beam model via an active beam cross-sectional analysis. A 2-D incompressible, inviscid, quasi-steady aerodynamic model is coupled to the active structural model. The resulting nonlinear model of high order is reduced using the aeroelastic modes of the blade. Finally, a nonlinear controller is obtained by cancelling the nonlinearities and applying an energy optimal LQR, design to the resulting linear plant.
AB - The paper presents the theoretical basis for the simulation of active helicopter blades. The analysis of active helicopter blades is based on models for the structure, aerodynamics, actuation and sensing. For simulation and analysis purposes, the blade structural model is discretized in space using a Galerkin approach. The effect of the integral actuation enters the beam model via an active beam cross-sectional analysis. A 2-D incompressible, inviscid, quasi-steady aerodynamic model is coupled to the active structural model. The resulting nonlinear model of high order is reduced using the aeroelastic modes of the blade. Finally, a nonlinear controller is obtained by cancelling the nonlinearities and applying an energy optimal LQR, design to the resulting linear plant.
UR - http://www.scopus.com/inward/record.url?scp=34147093181&partnerID=8YFLogxK
U2 - 10.2514/6.2006-2040
DO - 10.2514/6.2006-2040
M3 - Conference contribution
AN - SCOPUS:34147093181
SN - 1563478080
SN - 9781563478086
T3 - Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
SP - 5389
EP - 5406
BT - Collection of Technical Papers - 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
PB - American Institute of Aeronautics and Astronautics Inc.
T2 - 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Y2 - 1 May 2006 through 4 May 2006
ER -