- Tytuł:
- Residual life estimation of structural beam using experimental and numerical modal analysis methods
- Autorzy:
-
Siva, Gandam Anand
Ramakrishna, Shinigam - Powiązania:
- https://bibliotekanauki.pl/articles/1819188.pdf
- Data publikacji:
- 2020
- Wydawca:
- Politechnika Koszalińska. Wydawnictwo Uczelniane
- Tematy:
-
structural beam
residual life estimation
FFT analyzer
damage detection
crack location
natural frequencies
belka strukturalna
ocena trwałości resztkowej
analiza FFT
wykrywanie uszkodzeń
lokalizacja pęknięć
częstotliwości drgań własnych - Opis:
- 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.
- Źródło:
-
Journal of Mechanical and Energy Engineering; 2020, 4, 2; 135--146
2544-0780
2544-1671 - Pojawia się w:
- Journal of Mechanical and Energy Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł