Determination of the Logarithmic Decrement in Mechanical Spectroscopy

Leszek B. Magalas

doi:10.4028/www.scientific.net/SSP.115.7

Paper Titles

Mechanical Spectroscopy and Relaxation Phenomena in Solids
p.1

Determination of the Logarithmic Decrement in Mechanical Spectroscopy
p.7

Mechanical Spectroscopy, Internal Friction and Relaxation Phenomena in Solids – Suggested Reading
p.15

Mechanical Spectroscopy of Quasicrystals
p.25

The Snoek Effect in Ternary BCC Alloys. A Review
p.37

Hydrogen Interaction with Dissolved Atoms and Relaxation Properties of Metal Solid Solutions
p.41

Diffusion of Hydrogen in the Ni₃₀Ti₅₀Cu₂₀ Shape Memory Alloy
p.51

Specific Properties of Industrial High-Damping Fe-Al Steels
p.57

Ultrasonic Investigation of the Ni₄₀Ti₅₀Cu₁₀ Alloy
p.63

HomeSolid State PhenomenaSolid State Phenomena Vol. 115Determination of the Logarithmic Decrement in...

Determination of the Logarithmic Decrement in Mechanical Spectroscopy

Abstract:

The comparison between the classical methods and a new algorithm OMI used to compute the logarithmic decrement is reported. The OMI algorithm is tested in the computation of the logarithmic decrement from exponentially damped harmonic oscillations. The OMI algorithm yields high precision in the computation of the logarithmic decrement and the resonant frequency, and the smallest dispersion of experimental points.