Method and apparatus for bucket natural frequency tuning

Method and apparatus for centering rotor assembly damper...

Method and apparatus for centering rotor assembly damper...

Method and apparatus for controlling a propulsion engine output

Method and apparatus for controlling airplane engine

Method and apparatus for controlling windmill blade pitch

Method and apparatus for cooling gas turbine rotor blades

Method and apparatus for reducing rotor blade deflections,...

Method and apparatus for varying the critical speed of a shaft

Method and apparatus for wind turbine braking

Method and apparatus to determine the wind speed and...

Method and control arrangement for adjusting a flap that is...

Method and installation for extracting energy from a flowing...

Method and installation for extracting energy from a flowing...

Method and system for monitoring wind turbine

Method for changing the pitch of a controllable pitch...

Method for controlling a wind turbine

Method for damping edgewise oscillations in one or more...

Method for folding helicopter main rotor blades

Method for increasing operating efficiency of the rotor...