초록 ▼

Method for reducing the effect of the vibration generated by the driveline of a helicopter. The helicopter includes at least one rotor, the collective pitch of the blades of which can be controlled by a control system. The values of at least one parameter representing the effect of the vibration gen

Method for reducing the effect of the vibration generated by the driveline of a helicopter. The helicopter includes at least one rotor, the collective pitch of the blades of which can be controlled by a control system. The values of at least one parameter representing the effect of the vibration generated by the driveline are measured. A control signal for the collective pitch of the blades of the rotor is directly formed from the measured values of the parameter. The control signal to the system for controlling the collective pitch of the blades of the rotor generates a set of forces and of moments which oppose the effect of the vibration generated by the driveline. The control signal thus formed is applied to the system for controlling the collective pitch of blades of the rotor.

대표청구항 ▼

[ We claim:] [1.] A method for reducing the effect of the vibration generated by the driveline (2, 3, 4, 5) of a helicopter (H), the said helicopter (H) including at least one rotor (2, 3), the collective pitch of the blades (6, 26) of which can be controlled by a control system (7, 27), comprising:

[ We claim:] [1.] A method for reducing the effect of the vibration generated by the driveline (2, 3, 4, 5) of a helicopter (H), the said helicopter (H) including at least one rotor (2, 3), the collective pitch of the blades (6, 26) of which can be controlled by a control system (7, 27), comprising:(i) measuring the values of at least one parameter representing the effect of the vibration generated by the said driveline (2, 3, 4, 5);(ii) forming a control signal for the collective pitch of the blades (6, 26) of the said rotor (2, 3) directly from the measured values of the said parameter, the said control being such that applying the said control signal to the system for controlling the collective pitch of the blades (6, 26) of the said rotor (2, 3) generates a set of forces and of moments which oppose the said effect of the vibration generated by the driveline (2, 3, 4, 5); and(iii) applying the control signal thus formed to the said system (7, 27) for controlling solely the collective pitch of the blades (6, 26) of the rotor (2, 3).