Modal analysis of vibrating structures impregnated with crack

• Autorzy: Das H. C. , Parhi D. R.
• Języki publikacji: EN

Abstrakty

EN

In the current investigation a dynamic analysis of the cracked cantilever beam is carried out. Local flexibility is being introduced due to the presence of a crack in the structural member that affects its dynamic response. For finding out the deviation in mode shapes and natural frequencies of the cracked cantilever beam the local stiffness matrices are taken into account. Theoretical expressions have been developed to calculate the natural frequencies and mode shapes of the cracked cantilever beam using local stiffness matrices. The strain energy release rate has been used for calculating the local stiffnesses of the beam. Suitable boundary conditions are taken into account at the crack location. Comparisons made between the numerical results and the corresponding experimental results show very good agreement and authenticate the theory developed.

Słowa kluczowe

EN

cantilever beam; vibration; crack; mode shape; natural frequency

PL

wibracje; częstotliwość fal; belka wspornikowa

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2008
• Tom: Vol. 13, no 3
• Strony: 639--652
• Opis fizyczny: Bibliogr. 15 poz., rys., wykr.

Twórcy

autor

Das H. C.

autor

Parhi D. R.

• Department of Mechanical Engineering I.T.E.R, Bhubaneswar Orissa, India, 751010,

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