سال انتشار: ۱۳۹۱

محل انتشار: بیستمین کنفرانس سالانه مهندسی مکانیک

تعداد صفحات: ۴

نویسنده(ها):

M. M. Barzegari – Department of Mechanical Engineering, Babol University of Technology;
m Dardel – Department of Mechanical Engineering, Babol University of Technology
A. R. Fathi – Department of Mechanical Engineering, Babol University of Technology
a Ghasemi – Department of Mechanical Engineering, Babol University of Technology

چکیده:

In this paper, flutter control of cantilever plate with piezoelectric actuators using state-dependent Riccati equation (SDRE) technique is carried out. Two similar piezoelectric patches with different sign applied voltages are placed on the wing. Length and width of piezoelectric actuators are considered to be equal to the wing’s length and width, but their thicknesses are different. The effect of piezoelectric actuators on the flutter margin and limit cycle oscillation (LCO) amplitude of rectangular wing are studied. Aerodynamic loading is modeled in according to quasi-steady firstorderpiston theory. In addition, the aeroelastic equations are derived from Lagrange’s equations based on the first-order shear deformation plate theory (FSDT) and the von Karman type nonlinear strains. The results show the capability of SDRE method in control of stability margin and LCO amplitude of the wing. Also, it is obtained that the performance of the SDRE method is more proper than linear quadratic regulator due to having very low sensitivity in the selection of weighting matrices.