Abstract
1. An empirical relationship has been proposed between the calculated and actual frequencies which allows the Vlasov theory of oscillations of thin-walled rods to be applied to the case where the longitudinal dimension is commensurate with the greatest transverse dimension. 2. The error in calculating the frequencies does not exceed 10% for values of b/l (ratio of the width of the rod to its length) in the range 0.15–0.40 for oscillation modes below the principal platelike mode.
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