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Influence of the road profile and dump truck parameters on the exploitation indexes

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Category: Geotechnical and mining mechanical engineering, machine building

Last Updated on 28 July 2014

Published on 13 August 2013

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Authors:

K.M. Bass, Cand. Sci. (Tech.), Associate Professor, State Higher Educational Institution “National Mining University”, Head of the Department of Automobiles and Automobile Management, Dnipropetrovsk, Ukraine

V.V. Plakhotnik, Cand. Sci. (Tech.), Associate Professor, State Higher Educational Institution “National Mining University”,

Senior Lecturerof the Department of Automobiles and Automobile Management, Dnipropetrovsk, Ukraine

V.V. Krivda, State Higher Educational Institution “National Mining University”, Research Fellow of the Department of Automobiles and Automobile Management, Dnipropetrovsk, Ukraine

Abstract:

Purpose. Research of dynamics and pull-speed characteristics during the process of dump truck movement.

Methods. There were used general scientific as well as special methods of research in current paper. They include scientific synthesis, integrated assessment methods of technical level, mathematical modeling and apparatus of linear programming. The solution of this problem is based on the composing of differential equation of motion, for which it was used the Lagrange equation of the second order, and appropriate expression of the kinetic, potential energy and dissipation function.

The results are obtained by mathematical calculations in the software for mathematical analysis and calculation – “Wolfram Mathematicа”.

Result. The article is going about the mathematical model of the linear movement of career dump truck as a multimass system with eight degrees of freedom on a linear track, accounting for the road covering conditions. The method for calculation pulling and dynamic characteristics of dump truck movement on the road with longitudinal gradient is obtained. It allows to receive required traction force.

Originality.It wascompiled a calculation scheme and equations of motion in rectilinear vehicle’s motion, which includes elastic-dissipative characteristics of ties, longitudinal incline and road profile, changing of mechanical characteristics that are similar to real exploitation indexes of career dump truck and indexes of traction performance.

Practical value.The evaluation method of the dynamical characteristics of the dump truck while driving regime is described. The analysis of dump truck design parameters, basing on which it is possible to give the recommendations on reduction of capital costs on development of the open mines.

References:

1. Зырянов И.В. Повышение эффективности систем карьерного автотранспорта в экстремальных условиях эксплуатации: автореф. дис. на здобуття наук. ступеня докт. техн. наук : спец. 05.05.06 ,,Гірничі машини” / И.В. Зырянов. – СПб., 2006. – 20 с.

Zyryanov, I.V. (2006), “Improvement of effectiveness of career vehicles systems in extreme conditions”, Abstract of Dr. dissertation,Mining Machines, St. Petersburg., Russia.

2. Бунякин А.В. Комплексная оценка и прогнозирование показателей качества эксплуатации карьерных автосамосвалов: автореф. дис. на здобуття наук. ступеня канд. техн. наук : спец. 05.05.06 „Гірничі машини“ / А.В. Бунякин. – Кемерово, 2004. – 20 с.

Bunyakin, A.V. (2004), “Complex evaluation and prediction of quality indexes of mining dump trucks”, Abstract of Ph.D. dissertation, Mining Machines, Kemerovo., Russia.

3. Смирнов Г.А. Теория движения колесных машин / Смирнов Г.А. – М : Машиностроение, 1990. – 352 с.

Smirnov, G.A. (1990), Teoriya dvizheniya kolesnykh mashin [The theory of wheeled vehicles motion], Mashinostroyeniye, Moscow, Russia

4. Блохин С.Е. Пути повышения тормозных возможностей шахтных локомотивов / С.Е. Блохин // Збірник наукових праць НГУ. – 2011. – № 36. – Т. 2. – С. 63–67.

Blokhin, S.E. (2011), “The ways of increasing brake possibilities of mine locomotives”, Zbirnyk naukovukh prats NGU, no 36, Vol. 2, pp. 63-67..

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