En el presente trabajo se estudia el problema de frecuencias propias de la viga Euler-Bernoulli de seccion no uniforme;
se comparan las soluciones del problema obtenidas numericamente con la solucion asintotica lograda mediante el metodo Wentzel-Kramers-Brillouin (WKB). Se establece que la precision de las formulas WKB es mayor del 3% para frecuencias altas.
This paper has studied the problem of natural frequencies for Euler-Bernoulli beams having non-uniform crosssection.
The numerically-obtained solutions were compared to asymptotic solutions obtained by the Wentzel- Kramers-Brillouin (WKB) method. It was established that WKB formula precision was higher than 3% for high frequencies.
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