Predicting the relationship between system vibration with rock brittleness indexes in rock sawing process

• Autorzy: Mikaeil R. , Ataei M. , Ghadernejad S. , Sadegheslam G.

Identyfikatory

DOI

10.2478/amsc-2014-0010

Warianty tytułu

PL

Prognozowanie związku pomiędzy drganiami urządzenia a współczynnikiem kruchości skał w trakcie ich urabiania

• Języki publikacji: EN

Abstrakty

EN

The system vibration is a very significant measure of the sawing performance, because it indicates the amount of energy required to saw the rock. The maintenance cost of system is also dependant on system vibration. A few increases in system vibration cause a huge increase in the maintenance cost of the system. In this paper, the vibration of system in terms of RMSa was investigated and models for estimation of vibration by means of rock brittleness indexes and operational specifications were designed via statistical models and multiple curvilinear regression analysis. In this study, the relationships between rock brittleness indexes and operational specifications were investigated by regression analysis in statistical package for social science (SPSS) and the results of determination coefficients have been presented. In the second part, the diagrams show that a point lying on the line indicates an exact estimation. In the plot for model, the points are scattered uniformly about the diagonal line, suggesting that the models are good. It is very useful to evaluate the vibration of system and select the suitable operational characteristics by only some mechanical properties of rock.

PL

Drgania układu uważane są za miernik wydajności procesu urabiania, ponieważ pokazują ilość energii niezbędnej do urabiania skały. Od poziomu drgań zależą także koszty eksploatacji systemu. Nieznaczny nawet wzrost poziomu drgań prowadzi do znacznego zwiększenia kosztów eksploatacyjnych urządzenia. W pracy tej przeprowadzono analizę drgań (ich wartości skutecznych) i opracowano model estymacji poziomu drgań w oparciu o współczynnik kruchości skał i parametry eksploatacyjne urządzenia. W pracy wykorzystano modele statystyczne i wielokrotną analizę metodą regresji krzywoliniowej. W pracy obecnej związek pomiędzy współczynnikiem kruchości skał a parametrami eksploatacyjnymi urządzenia badano z wykorzystaniem analizy metodą regresji dostępnej w statystycznym pakiecie oprogramowania dla nauk społecznych (SPSS) a wyniki podano w postaci wyznaczonych współczynników. W drugiej części pracy przedstawiono wykres pokazujący, ze punkt leżący na linii oznacza dokładne oszacowanie. W wykresie wykonanym dla modelu punkty rozrzucone są równomiernie wokół linii przekątnej, co sugeruje że modele są właściwe. Określenie poziomu drgań urządzenia jest niezwykle korzystnym zabiegiem pozwalającym na dobór parametrów pracy urządzenia jedynie w oparciu o mechaniczne właściwości skał.

Słowa kluczowe

EN

system vibration; brittleness indexes; sawing process; statistical analysis

PL

drgania urządzenia; współczynnik kruchości skał; proces urabiania skał; analiza statystyczna

• Wydawca: Instytut Mechaniki Górotworu PAN
• Czasopismo: Archives of Mining Sciences
• Rocznik: 2014
• Tom: Vol. 59, no. 1
• Strony: 139--153
• Opis fizyczny: Bibliogr. 61 poz., rys., tab., wykr.

Twórcy

autor

Mikaeil R.

• Department of Mining and Metallurgical Engineering, Urmia University of Technology, Urmia, Iran

autor

Ataei M.

• Department of Mining Engineering, Shahroud University of Technology, Shahroud, Iran

autor

Ghadernejad S.

• Department of Mining and Metallurgical Engineering, Urmia University of Technology, Urmia, Iran

autor

Sadegheslam G.

• Department of Mining and Metallurgical Engineering, Urmia University of Technology, Urmia, Iran

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