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:
Mar. 25, 2014
Filed:
Dec. 12, 2008
Jason Cotrell, Lafayette, CO (US);
Robert Thresher, Golden, CO (US);
Scott Lambert, Westminster, CO (US);
Scott Hughes, Lakewood, CO (US);
Jay Johnson, Albuquerque, NM (US);
Jason Cotrell, Lafayette, CO (US);
Robert Thresher, Golden, CO (US);
Scott Lambert, Westminster, CO (US);
Scott Hughes, Lakewood, CO (US);
Jay Johnson, Albuquerque, NM (US);
Alliance for Sustainable Energy, LLC, Golden, CO (US);
Abstract
An apparatus () for fatigue testing elongate test articles () including wind turbine blades through forced or resonant excitation of the base () of the test articles (). The apparatus () includes a testing platform or foundation (). A blade support () is provided for retaining or supporting a base () of an elongate test article (), and the blade support () is pivotally mounted on the testing platform () with at least two degrees of freedom of motion relative to the testing platform (). An excitation input assembly () is interconnected with the blade support () and includes first and second actuators () that act to concurrently apply forces or loads to the blade support (). The actuator forces are cyclically applied in first and second transverse directions. The test article () responds to shaking of its base () by oscillating in two, transverse directions ().