Using enhanced frequency domain decomposition as a robust technique to harmonic excitation in operational modal analysis

被引：0

作者：

Jacobsen, N-J. ^{[1
]}

Andersen, P. ^{[2
]}

Brincker, R. ^{[3
]}

机构：

[1] Bruel & Kjaer Sound & Vibrat Measurement AS, Skodsborgvej 307, DK-2850 Naerum, Denmark

[2] Struct Vibrat Solut AS, DK-9220 Aalborg, Denmark

[3] Aalborg Univ, Dept Bldg Technol & Struct Engn, DK-9000 Aalborg, Denmark

来源：

PROCEEDINGS OF ISMA2006: INTERNATIONAL CONFERENCE ON NOISE AND VIBRATION ENGINEERING, VOLS 1-8 | 2006年

关键词：

D O I：

暂无

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The presence of harmonic components in the measured responses is unavoidable in many applications of Operational Modal Analysis. This is especially true when measuring on mechanical structures containing rotating or reciprocating parts. This paper describes a new method based on the popular Enhanced Frequency Domain Decomposition technique for eliminating the influence of these harmonic components in the modal parameter extraction process. For various experiments, the quality of the method is assessed and compared to the results obtained using broadband stochastic excitation forces. Good agreement is found and the method is proven to be an easy-to-use and robust tool for handling responses with deterministic and stochastic content.

引用

页码：3129 / +

页数：2