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Descripción
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| A straightforward accurate technique is presented for calculating natural frequencies for axisymmetric vibration of cylinders of any aspect ratio. The Ritz variational method is applied by using algebraic polynomials in the form of power series in the axial and radial co-ordinates. The adequate choice of the maximum exponents for each co-ordinate is important factor in order to achieve better accuracy, compatible with an admissible time of calculation. A computational model is developed that provides the optimum selection of exponents by following an automatic iterative process. This leads to a precise calculation of frequencies in a minimum time of calculation. The method is tested by comparing numerical and experimental results and a good agreement is obtained. The common hypothesis on the number of terms in the radial and axial co-ordinates is not sufficiently justified, as is proved. | |
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Internacional
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Si |
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JCR del ISI
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Si |
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Título de la revista
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JOURNAL OF SOUND AND VIBRATION |
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ISSN
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0022-460X |
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Factor de impacto JCR
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1,024 |
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Información de impacto
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Volumen
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311 |
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DOI
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Número de revista
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0 |
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Desde la página
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588 |
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Hasta la página
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596 |
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Mes
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MARZO |
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Ranking
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