Pitchteeter coupling

As described in Section 5.8.8, the magnitude of teeter excursions can be reduced by coupling blade pitch to teeter angle, in order to generate an aerodynamic restoring moment proportional to the teeter angle. This can be done simply by setting the teeter hinge at an angle, known as the Delta 3 angle, to the perpendicular to the rotor axis. Alternatively, on pitch-controlled machines, pitch-teeter coupling can be introduced by actuating the blade pitch by the fore-aft motion of a rod passing through a hollow low-speed shaft (see Figure 6.6).

Renewable Energy Eco Friendly

Renewable Energy Eco Friendly

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable.

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