ON THE ISSUES OF OPTIMAL PARAMETR ESTIMATION FOR VIBRATION IMPACT ON THE GEOMATERIALS

Details

Parent Category: Geo-Technical Mechanics, 2015

Category: Geo-Technical Mechanics, 2015, Issue 123

UDC 622.242.-555.4 (043.3)

Author:

Minieiev О.S.,PhD. (Tech.), Associate Professor (State H E I «NMU»)

Abstract.

The author estimated optimal parameters for the vibration impact on the elastic and inelastic geomaterials at which maximal stress amplitudes could be achieved in the medium. In case of inelastic geomaterials, an informative parameter was proposed which characterized degree of the vibration energy transferring throughout the medium.  

It is stated that average power of the energy flow, as moving away from the source of vibration, decreases by exponential law in case of large distances, while with small distances, the medium properties should be essentially corrected. Therefore, it is difficult to determine the power of the energy flow by analytical method, and in this research it was determined by numeral calculation.

The findings allowed to recommend using of the mode of multifrequency vibrating impact for effective loosening of the frozen geomaterial.

Keywords:

parameters, vibration, impact, multifrequency, geomaterials, frozen, energy conductance.

References:

1. Poturaev, V.M., Minieiev, S.P. and Prusova, A.A.(1999), “Some effects witch implemented in mining area with the vibration influence”  Naukovy Visnik Natsionalnoi girnychoi akademii,no. 2, pp 11-14.

2.Minieiev, S.P., Sakhnenko, A.L. and Obukhov, S.A. (2005), Vibratsionnoe I volnovoe rykhlenie agregirovannoy cypuchey gornoy massy [Vibration and wave scarifying of aggregated friable coal mass], Dnipro-Val, Dnepropetrovsk, Ukraine.

3. Zhariy, O.Y. and Ulitko, A.F.(1989), Vvedenie v mekhaniku nestatsionarnykh kolebaniy i voln [Introduction to mechanic of non-stationary vibrations and waves], Vischa shkola, Kiev, Ukraine.

4. Novatsky, V.(1975), Theoria uprugosti[Theory of elasticity], Mir, Moscow, USSR.

5. Rabotnov, Y.N. (1977),  Elementy nasledstvennoy mekhaniki tverdykhtel [Basic hereditary mechanics of solids], Mir, Moscow, USSR.

6. Minieiev, A.S. (2012),  Automatization of vibrascarifiering unit for unloading fiering frozen cargos”, Abstract of Ph. D. dissertation,”Automatization management processing”, SHEI “National Mining University”, Dnepropetrovsk, Ukraine.

7. Slesarev, V.V. and Minieiev, A.S.(2012), “Math model vibroscarifying of aggregated coal area”, Vistnik Natsionalnogo girnychogo universytetu, no.1, pp 113-117.

About the author:

Minieiev Aleksandr Sergieievich, Candidate of Technical Sciences (Ph.D.), Associated Professor of System Analyzes and Management Department,  State Higher Educational Institution «National Mining University» (SHEI «NMU»), Dnepropetrovsk, Ukraine,  This email address is being protected from spambots. You need JavaScript enabled to view it. .

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