It is proposed to characterize the deviation of the one-body density matrix, ϱ, of the
correlated nuclear ground state from that, ϱ 0, of an uncorrelated system by the following …

This work studies the design of trailing edge controls for swashplateless helicopter primary
control, and examines the impact of those controls on the performance of the rotor. The …

This dissertation presents an aeromechanical closed loop stability and response analysis of
a hingeless rotor helicopter with a Higher Harmonic Control (HHC) system for vibration …

Achieving primary control of helicopters through the use of trailing edge flaps holds
significant promise in eliminating the swashplate and related controls—a system that is …

Flows around rotor blade sections equipped with active flaps with a degree of freedom in the
flap deflection angle are considered in this paper. Results for oscillating flaps are presented …

An aeroelastic modelling of pattern hingeless helicopter rotor in hover is presented in this
paper. The coupled aeroelastic problem accounts for the mutual dependence between …

This study obtains a better understanding of the aerodynamics of integrated trailing edge
flap (TEF) based swashplateless rotors. Both two dimensional (2D) and three dimensional …

This work comprehensively studies principal component active control systems, where plant
uncertainty and input constraints are included for the stability analysis. Theoretical tools …

В табл. 1 приведены расчетные случаи для моделирования осциллирующего профиля
OA209. Рассматриваемый профиль представляет собой сечение лопасти …

In this thesis analysis and design of helicopter rotor blades were discussed for reduced
vibrational level. For this purpose an optimization procedure was developed which involves …