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专利名称：Methods and apparatus for reducing noise
in reinforced skin structures
发明人：Christenson, Justin,Hoffman, Herbert
L.,Chewning, Gary R.,Juhn-Shyue, Lin
申请号：EP13171187.1申请日：20130610公开号：EP2674355B1公开日：20180926
摘要：Assemblies, methods, and an apparatus for damping vibrational energy inducedto a reinforced skin structure (100) are disclosed. The reinforced skin structure includesan outer wall (102) and at least one stringer (104) coupled to the outer wall. The methodincludes providing a damping apparatus that includes a stiffening member (200)
configured to adjust at least one of a bending mode and a torsional twisting mode of thestringer and an energy dissipation member (300) configured to dissipate vibrationalenergy of the stringer. The stiffening member includes at least two elongated members(202) that are spaced a distance apart and at least one truss member (204) that extendsobliquely between the at least two elongated members. The damping apparatus isattached to the at least one stringer. The damping apparatus may be configured todampen vibration in the range of between about 200-600 Hz.
申请人：BOEING CO
地址：US
国籍：US
代理机构：Boult Wade Tennant LLP
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