The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 2019
Filed:
Aug. 25, 2018
The Boeing Company, Chicago, IL (US);
Michael T. Fox, Saint Charles, MO (US);
Jeffrey M. Roach, Saint Charles, MO (US);
The Boeing Company, Chicago, IL (US);
Abstract
An apparatus for damping an actuator includes an inerter. The inerter includes a first terminal and a second terminal movable relative to one another and configured to be mutually exclusively coupled to a support structure and a movable device actuated by an actuator. The inerter further includes a threaded shaft coupled to and movable along the inerter axis with one of the first terminal and the second terminal. The inerter additionally includes a flywheel rotatable in proportion to movement of the threaded shaft in response to axial acceleration of the first terminal relative to the second terminal during actuation of the movable device by the actuator. The inerter reduces actuator-load-oscillatory amplitude at resonance of the actuator and movable device relative to the actuator-load-oscillatory amplitude that would otherwise occur using the same actuator without an inerter.