Structural damage identification using frequency and modal changes

• Autorzy: Dems K. , Turant J.
• Języki publikacji: EN

Abstrakty

EN

The problem of identification of a structural damage is considered. The identification of location and/or dimensions of a damaged area or local defects and inclusions is performed using the measurements of vibration frequency and eigenvalues of real structure and the corresponding finite element model. The proper distance norms between the measured and calculated structural response are introduced and minimized during the identification procedure.

Słowa kluczowe

EN

damage identification; modal analysis

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2011
• Tom: Vol. 59, nr 1
• Strony: 27--32
• Opis fizyczny: Bibliogr. 12 poz., rys., tab.

Twórcy

autor

Dems K.

autor

Turant J.

• Department of Technical Mechanics and Informatics, Technical University of Lodz, 116 Żeromskiego St., 90-924 Łódź, Poland,

Bibliografia

• [1] S.W. Doebling, C.R. Farrar, M.B. Prime, and D.W. Sheritz, “Damage identification and health monitoring of structural and mechanical systems from changes in their vibration characteristics: a literature review”, Los Alamos Natl. Lab. Rep. LA –13070 – MS, CD-ROM (1996).
• [2] K. Dems and Z. Mróz, “Identification of damage in beam and plate structures using parameter dependent frequency changes”, Eng. Comp. 18 (1–2), 96–120 (2001).
• [3] K. Pandey and M. Biswas, “Damage detection in structures using changes in flexibility”, J. Sound Vibr. 169, 3–17 (1994).
• [4] G. Hearn and R.B. Testa, “Modal analysis for damage detection in structures”, ASCE J. Struct. Eng. 117, 3042–3063 (1991).
• [5] P. Gudmundson, “Eigenfrequency changes of structures due to cracks, notches or other geometrical changes”, J. Mech. Phys. Solids 30, 339–353 (1982).
• [6] A. Garstecki and K. Thermann, “Sensitivity of frames to variations of hinges in dynamic and stability problems”, Struct. Optim. 4, 108–114 (1992).
• [7] K. Dems and Z. Mróz, “Sensitivity of buckling load and vibration frequency with respect to shape of stiffened and unstiffened plates”, Mech. Struct. Machines 17, 431–457 (1989).
• [8] M.A. Glinicki and A. Litorowicz, “Crack system evaluation in concrete elements at mesoscale”, Bull. Pol. Ac.: Tech. 54 (4), 371–379 (2006).
• [9] E. Hinton and D.R.J. Owen, Introduction to Finite Element Computation, Pineridge Press, Swansea, 1979.
• [10] G. Hearn and R.B. Testa, “Modal analysis for damage detection in structures”, ASCE J. Struct. Eng. 117, 3042–3063 (1991).
• [11] K. Dems and Z. Mróz, “Damage identification using modal, static and thermographic analysis with additional control parameters”, Comp. & Struct. 88, 1254–1264 (2010).
• [12] U. Kirsch, “A unified reanalysis approach for structural analysis, design and optimization”, J. Struct. Multidisc. Optimization 25, 67–86 (2003).