Use of substructural transmission zeros for structural wealth monitoring

被引:6
作者
Reich, GW [1 ]
Park, KC [1 ]
机构
[1] Univ Colorado, Ctr Aerosp Struct, Boulder, CO 80309 USA
关键词
D O I
10.2514/2.1065
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
A method of localized structural health monitoring is presented that utilizes an invariance property of transmission zeros of substructural frequency response functions. These functions are obtained by partitioning the global dynamic flexibility into a substructural form. It is shown that the transmission zeros of the frequency response functions of a damaged substructure are invariant whereas those of healthy substructures are affected. The present method exploits this invariance property for the detection of damage in a structure. Numerical examples are presented to demonstrate the utility of the proposed method.
引用
收藏
页码:1040 / 1046
页数:7
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