BEARING FOR ROTOR BLADE
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United States of America Patent
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Issued Date -
Oct 16, 2014
app pub date -
Apr 11, 2013
filing date -
Apr 11, 2013
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A rotor blade assembly includes one or more flex-beam members and a torque tube surrounding the one or more flex-beam members and extending at least partially along a rotor blade assembly length. A pitch bearing assembly is supportive of the torque tube relative to the one or more flex-beam members and includes at least two outer bearing members secured to the torque tube and an inner bearing member positioned at least partially within the at least two inner bearing members and secured to the one or more flex beam members. A change in a stiffness of the inner bearing member changes one or more dynamic characteristics of the rotor blade assembly.
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