Residual life estimation of structural beam using experimental and numerical modal analysis methods

• Autorzy: Siva Gandam Anand , Ramakrishna Shinigam

Identyfikatory

DOI

10.30464/jmee.2020.4.2.135

• Języki publikacji: EN

Abstrakty

EN

A structural beam is a common element in many mechanical structures such as ship propeller shaft, crane boom, and aircraft wings. In the present paper experimental and numerical modal analysis are carried out for estimating the damage, geometric location of the damage, severity of damage and residual life of structural beam to prevent unexpected failures of mechanical structures. Experimental and numerical modal analysis results for healthy and cracked beam are compared for validation of numerical methodology used in the present paper. Experimental modal analysis is performed on both healthy and cracked beam with the help of impact hammer, acceleration sensor and FFT (Fast Fourier Transformer) analyzer associated with EDM (Engineering Data Management) software. Modal tests are conducted using impact method on selected locations of the entire healthy and cracked beam to find the first three natural frequencies, which are used to detect the presence of damage and geometric location of the damage. Three parametric studies are carried out to know the effect of crack depth, crack location and crack orientation on the natural frequencies of the cracked beam. Finally, the residual life of a healthy and cracked beam was estimated using Basiquin’s equation and finite element analysis software called ANSYS 18.1.

Słowa kluczowe

EN

structural beam; residual life estimation; FFT analyzer; damage detection; crack location; natural frequencies

PL

belka strukturalna; ocena trwałości resztkowej; analiza FFT; wykrywanie uszkodzeń; lokalizacja pęknięć; częstotliwości drgań własnych

• Wydawca: Wydawnictwo Uczelniane Politechniki Koszalińskiej
• Czasopismo: Journal of Mechanical and Energy Engineering
• Rocznik: 2020
• Tom: Vol. 4, No 2
• Strony: 135--146
• Opis fizyczny: Bibliogr. 18 poz., rys., tab., wykr.

Twórcy

autor

Siva Gandam Anand

• Department of Mechanical Engineering, GVP-Satya Institute of Technology and Management, Vizianagaram, India

autor

Ramakrishna Shinigam

• Department of Mechanical Engineering, Gayatri Vidya Parishad College of Engineering (Autonomous), Visakhapatnam-530048, India

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).