Active vibration absorber
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United States of America Patent
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Jun 27, 2017
Grant Date -
Aug 6, 2015
app pub date -
Feb 6, 2014
filing date -
Feb 6, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An active vibration absorber is attachable to a structure incorporating a positioning system which serves to vibrate the structure during its operation. The active vibration absorber comprises a mounting portion for attachment to the structure, an inertial mass that is resiliently coupled to the mounting portion and a force actuator which is operative to controllably move the inertial mass relative to the mounting portion. The force actuator is configured to move the inertial mass relative to the mounting body according to a motion profile during a motion cycle of the positioning system in order to attenuate vibrations in the structure. The motion profile is determined from a motion command which is operative to drive the positioning system during the motion cycle.
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