Adaptively tuned vibration absorber with dual flexures
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United States of America Patent
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Sep 22, 1998
Grant Date -
N/A
app pub date -
Apr 17, 1997
filing date -
Apr 17, 1997
priority date (Note) -
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Abstract
An apparatus for counteracting vibrations includes a housing for attachment to a vibrating member. First and second bodies are connected to the housing by first and second springs, respectively, with a combined stiffness which defines a resonant frequency at which the first and second bodies oscillate with respect to the housing. Each of the first and second springs include a plurality of rods fixedly connected between a pair of rings. A lever engages the first and second bodies to vary a spacing between those bodies when force from an actuator is applied to the lever. The lever action alters the stiffness of the first and second springs which varies the resonant frequency of the vibration absorber.
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