Longitudinal resonance vibrations in determining dynamic viscoelastic properties of textile materials

Authors

  • Світлана Анатоліївна Демішонкова Kyiv National University of Technologies and Design st. Nemirovich-Danchenko, 2, Kyiv, Ukraine, 01011, Ukraine

DOI:

https://doi.org/10.15587/1729-4061.2014.31202

Keywords:

viscoelastic properties, elasticity module, damping decrement, mechanical loss angle, vibration amplitude

Abstract

The study presents a method for estimating dynamic viscoelastic properties of textile materials. The method allows solving the problem of express analyzing of the properties of fabrics for sewing products with predictable consumer indices. The suggested direct determining of the angle of mechanical loss due to the simplified algorithm of technical playback does not require measuring vibration amplitudes. The fabric elasticity module is determined by measuring longitudinal resonance vibrations. The suggested method is especially convenient in measuring phasal angles for low frequency vibrations as well as angles of phasal shift in the range (-π/2; π/2) for harmonic vibrations. The maximal errors for the dynamic elasticity module Е(t) and the damping decrement δ do not exceed ±1,5 % and ±2,5 % respectively. The obtained findings enable a rational choice of textile materials for industrial sewing.

Author Biography

Світлана Анатоліївна Демішонкова, Kyiv National University of Technologies and Design st. Nemirovich-Danchenko, 2, Kyiv, Ukraine, 01011

Senior lecturer

Department of Electromechanical Systems

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Published

2014-12-19

How to Cite

Демішонкова, С. А. (2014). Longitudinal resonance vibrations in determining dynamic viscoelastic properties of textile materials. Eastern-European Journal of Enterprise Technologies, 6(5(72), 52–58. https://doi.org/10.15587/1729-4061.2014.31202

Issue

Vol. 6 No. 5(72) (2014): Applied physics

Section

Applied physics

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Copyright (c) 2014 Світлана Анатоліївна Демішонкова

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