Natural Frequencies of Tapered Beam with a Crack and Crack Identification using Genetic Algorithm.
نویسندگان
چکیده
منابع مشابه
A numerical investigation into the crack effects on the natural frequencies of the plates
In the current study, the effect of such parameters as the length, position and angle of crack on free vibrations of a cracked plate was examined by finite element method. The assumed crack was internal and through and its growth was ignored. In the proposed finite element model, crack was considered as a discontinuity on the plate surface and the results were compared with the results of other...
متن کاملCrack size estimation using model reduction and genetic algorithm
In this study we use the material elastic properties as a base. A tow dimensional cracked plate under traction is modelled by finite element method (FEM) then a reduced model is built using the proper orthogonal decomposition method (POD) with help of radial basis functions (RBF) method of interpolation. The crack length is estimated as an inverse identification problem, basing on the deformati...
متن کاملTitle: Crack dynamics and crack surfaces in elastic beam lattices
Rights: © 1998 American Physical Society (APS). This is the accepted version of the following article: Åström, Jan & Alava, Mikko J. & Timonen, Jussi. 1998. Crack dynamics and crack surfaces in elastic beam lattices. Physical Review E. Volume 57, Issue 2. R1259-R1262. ISSN 1539-3755 (printed). DOI: 10.1103/physreve.57.r1259, which has been published in final form at http://journals.aps.org/pre/...
متن کاملEffect of Bed and Crack on the Natural Frequency for the Timoshenko Beam Using Finite Element Method
In this study, the natural frequencies and mode shapes of beams without cracks and cracked Timoshenko beams is calculated with different boundary conditions using finite element method. The energy method is used to solve the equations. Hardness and softness matrices for Timoshenko beam without crack are obtained by solving the potential and kinetic energy equations. Then for investigation of cr...
متن کاملCRACK DETECTION IN CONCRETE BEAM USING OPTIMIZATION METHOD
Structural damage detection is a field that has attracted a great interest in the scientific community in recent years. Most of these studies use dynamic analysis data of the beams as a diagnostic tool for damage. In this paper, a massless rotational spring was used to represent the cracked sections of beams and the natural frequencies and mode shape were obtained. For calculation of rotational...
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ژورنال
عنوان ژورنال: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C
سال: 2001
ISSN: 0387-5024,1884-8354
DOI: 10.1299/kikaic.67.1366