Dynamic Response of Zener-Modelled Linearly Viscoelastic Systems under Harmonic Excitation

A comprehensive investigation, including analytical modelling, numerical analysis and experimental tests, has been carried out on many linear viscoelastic systems and structures. This approach is the result of research conducted by two research institutes, ICECON and INCERC Bucharest, from Romania....

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Main Authors: Polidor Bratu, Cornelia Dobrescu
Format: Article
Language:English
Published: MDPI AG 2019-08-01
Series:Symmetry
Subjects:
Online Access:https://www.mdpi.com/2073-8994/11/8/1050
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author Polidor Bratu
Cornelia Dobrescu
author_facet Polidor Bratu
Cornelia Dobrescu
author_sort Polidor Bratu
collection DOAJ
description A comprehensive investigation, including analytical modelling, numerical analysis and experimental tests, has been carried out on many linear viscoelastic systems and structures. This approach is the result of research conducted by two research institutes, ICECON and INCERC Bucharest, from Romania. Thus, analyses were performed on the dynamic behaviour of composite viscoelastic materials, anti-vibration viscoelastic systems made of discrete physical devices, road structures consisting of layers of natural soil with mineral aggregates and asphalt mixtures, and mixed mechanic insulation systems for industrial vibrations formed of elastic and viscous devices. The objectives pursued were as follows: (a) providing a mass dosage of the mixture of earth (clay, sand, mineral aggregates, water, and stabilizer) in five variants; (b) carrying out a test run with a Bomag vibratory roller with variable vibration parameters; (c) Experimental evaluation of the vibration parameters and the force transmitted to the ground, correlated with the determination of the compaction layer; (d) use of methods of analysis for physic-mechanical and geotechnical parameters; (e) rheological and numerical modeling based on Zener schematics, so the consistency and veracity of the experimental data with the numerical simulation can be determined. Finally, a study is presented for a test track, where experimental and correlated input and response data are determined to validate the rheological model with a high loading rate.
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spelling doaj.art-cc2f5cf7551548c6aa9b8aec40b8dd4c2022-12-22T02:57:13ZengMDPI AGSymmetry2073-89942019-08-01118105010.3390/sym11081050sym11081050Dynamic Response of Zener-Modelled Linearly Viscoelastic Systems under Harmonic ExcitationPolidor Bratu0Cornelia Dobrescu1The “Dunărea de Jos” University, Department of Mechanical Engineering, Faculty of Mechanics, 800008 Galați, RomaniaNIRD URBAN-INCERC, 021652 Bucharest, RomaniaA comprehensive investigation, including analytical modelling, numerical analysis and experimental tests, has been carried out on many linear viscoelastic systems and structures. This approach is the result of research conducted by two research institutes, ICECON and INCERC Bucharest, from Romania. Thus, analyses were performed on the dynamic behaviour of composite viscoelastic materials, anti-vibration viscoelastic systems made of discrete physical devices, road structures consisting of layers of natural soil with mineral aggregates and asphalt mixtures, and mixed mechanic insulation systems for industrial vibrations formed of elastic and viscous devices. The objectives pursued were as follows: (a) providing a mass dosage of the mixture of earth (clay, sand, mineral aggregates, water, and stabilizer) in five variants; (b) carrying out a test run with a Bomag vibratory roller with variable vibration parameters; (c) Experimental evaluation of the vibration parameters and the force transmitted to the ground, correlated with the determination of the compaction layer; (d) use of methods of analysis for physic-mechanical and geotechnical parameters; (e) rheological and numerical modeling based on Zener schematics, so the consistency and veracity of the experimental data with the numerical simulation can be determined. Finally, a study is presented for a test track, where experimental and correlated input and response data are determined to validate the rheological model with a high loading rate.https://www.mdpi.com/2073-8994/11/8/1050Zener modeldynamic responsedissipated energyvisco-elastic system
spellingShingle Polidor Bratu
Cornelia Dobrescu
Dynamic Response of Zener-Modelled Linearly Viscoelastic Systems under Harmonic Excitation
Symmetry
Zener model
dynamic response
dissipated energy
visco-elastic system
title Dynamic Response of Zener-Modelled Linearly Viscoelastic Systems under Harmonic Excitation
title_full Dynamic Response of Zener-Modelled Linearly Viscoelastic Systems under Harmonic Excitation
title_fullStr Dynamic Response of Zener-Modelled Linearly Viscoelastic Systems under Harmonic Excitation
title_full_unstemmed Dynamic Response of Zener-Modelled Linearly Viscoelastic Systems under Harmonic Excitation
title_short Dynamic Response of Zener-Modelled Linearly Viscoelastic Systems under Harmonic Excitation
title_sort dynamic response of zener modelled linearly viscoelastic systems under harmonic excitation
topic Zener model
dynamic response
dissipated energy
visco-elastic system
url https://www.mdpi.com/2073-8994/11/8/1050
work_keys_str_mv AT polidorbratu dynamicresponseofzenermodelledlinearlyviscoelasticsystemsunderharmonicexcitation
AT corneliadobrescu dynamicresponseofzenermodelledlinearlyviscoelasticsystemsunderharmonicexcitation