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:
Apr. 28, 2015
Filed:
Jun. 12, 2012
Justin Christenson, Everett, WA (US);
Herbert L. Hoffman, Seattle, WA (US);
Gary R. Chewning, Woodinville, WA (US);
Juhn-shyue Lin, Renton, WA (US);
Justin Christenson, Everett, WA (US);
Herbert L. Hoffman, Seattle, WA (US);
Gary R. Chewning, Woodinville, WA (US);
Juhn-Shyue Lin, Renton, WA (US);
The Boeing Company, Chicago, IL (US);
Abstract
Assemblies, methods, and an apparatus for damping vibrational energy induced to a reinforced skin structure are disclosed. The reinforced skin structure includes an outer wall and at least one stringer coupled to the outer wall. The method includes providing a damping apparatus that includes a stiffening member configured to adjust at least one of a bending mode and a torsional twisting mode of the stringer and an energy dissipation member configured to dissipate vibrational energy of the stringer. The stiffening member includes at least two elongated members that are spaced a distance apart and at least one truss member that extends obliquely between the at least two elongated members. The damping apparatus is attached to the at least one stringer. The damping apparatus may be configured to dampen vibration in the range of between about 200-600 Hz.