Damage Diagnosis of Radial Gate Based on Modal Strain Energy

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Non-destructive testing and safety monitoring of structure has been a hot and difficult engineering research problems, and an effective extraction of damage characteristic factor is a critical and theoretical research on structural damage detection and monitoring technology. The basic theory of modal strain energy and the steps to damage diagnosis are discussed in the paper.A a radial gate with different damaged locations and damaged degree is studied,and the results show that modal strain energy can be used as structural damage location sensitive factor,and that the indicator can be a very good identification of the location and extent of structural damage,and that the results of damage diagnosis are clear and reliable.

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4240-4243

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July 2011

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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[1] ZHANGQiang, JI Chun-yan, FANBai-ming, Study on Methods for Identifying Structure Damages to Fixed Offshore Platforms Based on Wavelet Transform, OCEANTECHNOLOGY, vol. 27(2008), pp.52-56.

Google Scholar

[2] Guo Huiyong, Zhang Ling, Zhou Jinxiong. Identificationof structural multiple damaged locations based on Dumpster-Shafer theory of weighted balance of evidence,. Engineering Mechanics, vol. 22(2005), pp.235-240.

Google Scholar

[3] ZengGuangwu, XiaoWei, Cheng Yuansheng, SOUND ISOLATION OF COMPOSITE STRUCTURE CONSISTING OFMULTI PHONONIC CRYSTALS, JOURNAL OFVIBRATION AND SHOCK, vol. 26(2007), pp.84-86.

Google Scholar

[4] Kaouk M, Zimmerman D C, Simmermacher T W, Assessment of damage affecting all structural properties using experimental modal parameters, Journal of Vibration and Acoustics, Transactions of the ASME(2000), pp.456-462.

DOI: 10.1115/1.1310328

Google Scholar

[5] Ojalvo I U, Pilon D, Diagnostics for geometrically locating structural math model errors from modal test data. Proceedings of the 29th AIAA Structures, Structural Dynamics and Materials Conference, Williamsburg, (1988), pp.1174-1186.

DOI: 10.2514/6.1988-2358

Google Scholar

[6] Shi Z Y, Law S S, Zhang L M, Improved damage quantification from element modal strain energy change, Journal of Engineering Mechanics, vol. 128(2002) , pp.825-844.

Google Scholar