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Wind Turbine Gearbox Reliability:

Figure 1: traditional rotor support concepts with one and two bearings respectively

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Wind Turbine Gearbox Reliability:

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Wind Turbine Gearbox Reliability:

Figure 2: In this ECO100 illustration the hub and elastic coupling are shown light blue, bearings are orange, the main shaft is dark grey, while the front and central frame are shown as a sand colour

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Wind Turbine Gearbox Reliability:

Figure 3: Deflection loads (red arrows) are transmitted directly to the tower whereas only torque (dark green arrows) is transmitted through the shaft to the gearbox

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Wind Turbine Gearbox Reliability:

FEM comparison between a standard two bearing rotor support concept (top) and Alstom Pure Torque rotor support and drive train (bottom) when a bending load is applied to the hub-rotor

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Wind Turbine Gearbox Reliability: