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:
Jun. 28, 2011
Filed:
Jun. 25, 2008
David Louis Dingmann, St. Paul, MN (US);
Eric Thomas Gagner, Minnetonka, MN (US);
Troy D. Nickel, Minnetonka, MN (US);
Steven R. Seeman, Stillwater, MN (US);
Andrew D. White, Minneapolis, MN (US);
David Louis Dingmann, St. Paul, MN (US);
Eric Thomas Gagner, Minnetonka, MN (US);
Troy D. Nickel, Minnetonka, MN (US);
Steven R. Seeman, Stillwater, MN (US);
Andrew D. White, Minneapolis, MN (US);
Bose Corporation, Framingham, MA (US);
Abstract
A multi-axis fatigue testing device includes a multi-axis test fixture having a multiple input, multiple output mechanical linkage driven by a plurality of actuators and a controller operating each of the plurality of actuators in real time and in synchronization to produce user-defined multiple fatigue cycle profiles. At least one of the actuators driving the mechanical linkage acts against an artificial load characterized by a stiffness. The stiffness is selected to increase a resonance frequency of the test fixture to allow fatigue testing at higher frequencies for a wider range of samples.