Application of Energy Method for Determining Loss Factor in Dynamic Systems with Hysteretic Damping

Vladimir Smirnov; Vladimir Mondrus

doi:10.4028/www.scientific.net/AMM.580-583.2978

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 580-583Application of Energy Method for Determining Loss...

Application of Energy Method for Determining Loss Factor in Dynamic Systems with Hysteretic Damping

Abstract:

The article studies the energy method for determining loss factor due to hysteretic damping in systems of vibration and seismic isolation. Typical measure of damping is, where φ is the phase angle between stress and strain sinusoids [1], or damping constant δ ( [2, 3]). Both of these parameters are acquired through experimental investigations for each type of boundary conditions or element’s cross section. Proposed energy method is capable of loss factor ψ determination for different types of beams based on only one experimental investigation. This method is used in the paper to determine the damping ratio of elastic element in vibration isolation system of precision equipment.

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Periodical:

Applied Mechanics and Materials (Volumes 580-583)

Pages:

2978-2982

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.580-583.2978

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Online since:

July 2014

Authors:

Vladimir Smirnov*, Vladimir Mondrus

Keywords:

Hysteretic Damping, Low-Frequency Vibration Isolation, Micro Seismic Activity, Numerical Modeling, Precision Equipment, Vibration Isolation

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