Diagnostic benchmarks on dynamic characteristics of thin-walled marine damaged structures

• Autorzy: Szeleziński Adam , Murawski Lech , Muc Adam

Identyfikatory

DOI

10.2478/mape-2019-0004

• Języki publikacji: EN

Abstrakty

EN

Among structural health monitoring (SHM) methods of thin-walled structures, a vibrodiagnostic method is one of the most promising. The accelerometer recorded responses provide diagnostic information that requires mathematical processing to extract the essential dynamic characteristics. The authors have been looking for new parameters - diagnostic benchmarks which can be applied to non-destructive, automatic testing of thin-walled marine structures (especially their welded joints) like ship hulls. All characteristics have been based on recorded data generated during the vibration tests of welded joints with and without failures. For this purpose, the authors proposed method based on: FFT windowing analysis, benchmark with using 2D or 3D time – frequency dynamic characteristics and the determination of damping decrement in function of time. The work presents the algorithm and exemplary results obtained from the application of proposed method to several selected sample plates with different type of welds.

Słowa kluczowe

EN

thin-walled structures; welded joints; SHM; spectrum analysis; damping decrement

• Wydawca: STE GROUP ; De Gruyter
• Czasopismo: Multidisciplinary Aspects of Production Engineering
• Rocznik: 2019
• Tom: Vol. 2, Iss. 1
• Strony: 38--52
• Opis fizyczny: Bibliogr. 18 poz., fig.

Twórcy

autor

Szeleziński Adam

autor

Murawski Lech

autor

Muc Adam

• Gdynia Maritime University, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).