14 pages matching practical control law in this book
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accelerometer Active Flutter active flutter-suppression control actuator transfer function Aerodynamic Approximation Functions aerodynamic forces aerodynamic lag terms aerodynamic terms aerodynamic-force matrix due aeroelastic wind-tunnel model basic vehicle control distribution matrix Control surface activity curve fit damping ratio described in reference desired open-loop frequency Dynamic-pressure root loci equations of motion error function feedback control law feedback filter filtered frequency response flutter dynamic pressure flutter-suppression control law four Mach numbers FSS-off flutter boundary FSS-on full-state feedback control gain and phase gain margin increase in flutter Langley Research Center NASA nonlinear programing Nyquist diagram open-loop frequency response optimal control law optimal control theory optimal frequency response optimal full optimal regulator theory oscillatory aerodynamic phase margins practical control law rad/sec results of optimal Riccati Equation s-plane sensor shown in figure state-coefficient output matrix synthesis total-system U.S. Air Force u(iw Unsteady Aerodynamic variables vertical gust velocity