Loginova A.A.,Dyrda V.I.,Shevchenko V.G. Calculation vibroisolation system of mining machines with the aging effect

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Parent Category: Geo-Technical Mechanics, 2015

Category: Geo-Technical Mechanics, 2015, Issue 125

Geoteh. meh. 2015, 125, 251-261

CALCULATION VIBROISOLATION SYSTEM OF MINING MACHINES WITH THE AGING EFFECT

¹Loginova A.A., ²Dyrda V.I., ²Shevchenko V.G.
¹SHEI «NMU», ²IGTM NAS of Ukraine

UDC 622.002.5-752.2

Abstract. Analyzed algorithms for calculating vibrations of elastic systems based on the theory of viscous friction Kelvin-Voigt and Boltzmann-Volterr theory of heredity in relation to the calculation of vibration isolation systems of mining machines. As a result, it was concluded that the mathematical model using the Boltzmann-Volterr integral relationships based on the more stringent assumptions and takes into account the most accurate viscoelastant property of rubber. Comprehensively discussed tasks related to changes in physical and mechanical properties and rubber structure with long-term operation or storage, i.e. the aging effect. The reasons for and obtained functional dependencies that define measurable stiffness and damping characteristics at the time of the rubber. This dependence supplemented algorithms for calculating vibration isolation systems of mining machines discussed earlier. With the resulting algorithm to calculate the main dynamic characteristics and evaluated the effectiveness of vibration isolation system of mining machine with a known mass and frequency response. Obtained value of vibration isolation system failure was about 60 000 hours (7 years).
Keywords: Keywords: mining machines, vibration isolation, elastic elements, temporary characteristics, the mechanical properties of rubber.

REFERENCES

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 About the authors:

Loginova Anastasiia A., Master of Science, Doctoral Student, National Mining University State Higher Educational Institution MES of Ukraine (SHEI «NMU» MES of Ukraine), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Dyrda Vitaly I., Doctor of Technical Sciences (D. Sc.), Professor, Head of Department of Elastomeric Component Mechanics in Mining Machines, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Shevchenko Vladimir G., Doctor of Technical Sciences (D. Sc), Senior Researcher, Scientific Secretary of the Institute, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

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