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专利名称：Methods and apparatus for reducing noise
in reinforced skin structures
发明人：Justin Christenson,Herbert L. Hoffman,Gary
R. Chewning,Juhn-Shyue Lin
申请号：US13494083申请日：20120612公开号：US09016628B2公开日：20150428
专利附图：
摘要：Assemblies, methods, and an apparatus for damping vibrational energy inducedto 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 includesproviding a damping apparatus that includes a stiffening member configured to adjust atleast one of a bending mode and a torsional twisting mode of the stringer and an energydissipation member configured to dissipate vibrational energy of the stringer. Thestiffening member includes at least two elongated members that are spaced a distanceapart and at least one truss member that extends obliquely between the at least twoelongated members. The damping apparatus is attached to the at least one stringer. Thedamping apparatus may be configured to dampen vibration in the range of betweenabout 200-600 Hz.
申请人：Justin Christenson,Herbert L. Hoffman,Gary R. Chewning,Juhn-Shyue Lin
地址：Everett WA US,Seattle WA US,Woodinville WA US,Renton WA US
国籍：US,US,US,US
代理机构：Armstrong Teasdale LLP
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