Effect of crack induced nonlinearity on dynamics of structures: application to structural health monitoring

被引：3

作者：

Broda, D. ^{[1
]}

Hiwarkar, V. ^{[2
]}

Silberschmidt, V. V. ^{[3
]}

Staszewski, W. J. ^{[1
]}

机构：

[1] AGH Univ Sci & Technol, Dept Robot & Mechatron, PL-30059 Krakow, Poland

[2] Univ Nottingham, Mech Mat & Mfg Engn, Nottingham NG7 2RD, England

[3] Loughborough Univ, Wolfson Sch Mech & Mfg Engn, Loughborough LE11 3TU, Leics, England

来源：

INTERNATIONAL SYMPOSIUM ON DYNAMIC DEFORMATION AND FRACTURE OF ADVANCED MATERIALS (D2FAM 2013) | 2013年 / 451卷

关键词：

BEAM; VIBRATION; BEHAVIOR; IDENTIFICATION;

D O I：

10.1088/1742-6596/451/1/012015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In recent years, there has been a growing interest in vibration-based structural health-monitoring techniques. At present, most of the vibration-based techniques consider an open crack, which is far from realistic situations. In real-life scenarios crack can open and close under the dynamic loading. This bilinear behavior of crack has a significant effect on dynamics of structures which was investigated by performing finite-element simulations of a beam with a breathing crack excited longitudinally. Its response measured at different locations with regard to the crack indicated that the crack-induced nonlinearity had a localized effect on dynamics of the beam. Measurements obtained near the crack revealed complex spectra with higher harmonics.

引用

页数：7

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