2008•Diffusion and defect data, solid state data. Part B, Solid state phenomena/Solid state phenomenaRequires access

Recent Advances in Determination of the Logarithmic Decrement and the Resonant Frequency in Low-Frequency Mechanical Spectroscopy

Leszek B. Magalas, M. W. Majewski

Abstract

The advantages of the OMI algorithm to compute the logarithmic decrement and the resonant frequency from free decaying oscillations is reported. The OMI algorithm is proved to be the best solution in the computation of the logarithmic decrement and the resonant frequency for high damping levels.

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Key concepts: Logarithmic decrement, Logarithm, Computation, Materials science, Low frequency, Spectroscopy, Frequency dependence, Frequency analysis