Helicopter Blade Lead Lag. Coriolis force tends to make a rotor blade want to speed up and slow down it's rotation around the mast. If the blade is rigidly attached to the mast but isn't. Movement around this hinge is called dragging, lead/lag, or hunting. As counter intuitive as it may sound, this motion is a natural. Movement of a blade forward or aft in the plane rotation. To conserve angular momentum, an upward flapped blade (cg moves toward rotor hub) will speed up and hence lead. The rotating natural frequency of the. The hinge that allows the blades to move fore and aft is called a drag or lag hinge. These hinges and their associated movement are shown in figure 2. For lead lag, the issue is you need to allow for that motion on an articulating rotor helicopter because coriolis force makes a blade want to speed up. The main rotor head of a eurocopter model 725 is shown in figure 3, with the drag hinge and pitch change rods visible. In other words, having a flap hinge can lead to motion of the blade in the plane of the rotor disk.
from www.youtube.com
The rotating natural frequency of the. For lead lag, the issue is you need to allow for that motion on an articulating rotor helicopter because coriolis force makes a blade want to speed up. Movement of a blade forward or aft in the plane rotation. The main rotor head of a eurocopter model 725 is shown in figure 3, with the drag hinge and pitch change rods visible. As counter intuitive as it may sound, this motion is a natural. Movement around this hinge is called dragging, lead/lag, or hunting. To conserve angular momentum, an upward flapped blade (cg moves toward rotor hub) will speed up and hence lead. In other words, having a flap hinge can lead to motion of the blade in the plane of the rotor disk. Coriolis force tends to make a rotor blade want to speed up and slow down it's rotation around the mast. These hinges and their associated movement are shown in figure 2.
3 blades articulated main rotor head, leadlag, flapping, 450 size
Helicopter Blade Lead Lag As counter intuitive as it may sound, this motion is a natural. Movement around this hinge is called dragging, lead/lag, or hunting. To conserve angular momentum, an upward flapped blade (cg moves toward rotor hub) will speed up and hence lead. Movement of a blade forward or aft in the plane rotation. Coriolis force tends to make a rotor blade want to speed up and slow down it's rotation around the mast. If the blade is rigidly attached to the mast but isn't. The main rotor head of a eurocopter model 725 is shown in figure 3, with the drag hinge and pitch change rods visible. These hinges and their associated movement are shown in figure 2. As counter intuitive as it may sound, this motion is a natural. For lead lag, the issue is you need to allow for that motion on an articulating rotor helicopter because coriolis force makes a blade want to speed up. The hinge that allows the blades to move fore and aft is called a drag or lag hinge. The rotating natural frequency of the. In other words, having a flap hinge can lead to motion of the blade in the plane of the rotor disk.
