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:
May. 13, 2003
Filed:
Mar. 13, 2001
Everett You-Ming Kuo, Troy, MI (US);
A. Mangala Mahinda Jayasuriya, Bloomfield Hills, MI (US);
Efstratios Nikolaidis, Blacksburg, VA (US);
Richardo Anibal Burdisso, Blacksburg, VA (US);
Ford Global Technologies, Inc., Dearborn, MI (US);
Abstract
A method of determining joint stiffness degradation in structure is provided including a first exciting of the structure a first measuring of transfer function and frequency response function simulating a mileage accumulation process of the structure performed after the first exciting and the first measuring a second exciting of the structure performed after the simulating a mileage accumulation process a second measuring of frequency response function performed after the simulating a mileage accumulation process and calculating the change in joint stiffness using the first measuring and the second measuring