| 摘要 |
An apparatus comprising a hub (208) configured to couple to a mast (206), a grip (216) configured to couple to the hub (208) and a rotor blade (112), a pitch actuator (317) coupled to the grip (216) and configured to change a pitch of the rotor blade (112) relative to the mast (206), and a delta-3 restraint (211) coupled to the pitch actuator, wherein the delta-3 restraint (211) is fixed relative to the mast (206). An apparatus comprising a hub (208) configured to couple to a mast (206), a grip (216) configured to couple to the hub (208) and a rotor blade (112), a pitch actuator coupled to the grip (216) and configured to change a pitch of the rotor blade (112) relative to the mast (206), and a delta-3 restraint (211) coupled to the pitch actuator (317), wherein the delta-3 restraint (211) is configured to control the pitch of the blade (112) relative to the mast (206) when the pitch actuator fails, and wherein the delta-3 restraint (211) provides an instantaneous blade pitch-flap coupling response. |
