TITLE

# INFLUENCE OF THE ROAD PROFILE AND DUMP TRUCK PARAMETERS ON THE EXPLOITATION INDEXES

AUTHOR(S)
Bass, K. M.; Plakhotnik, V. V.; Krivda, V. V.
PUB. DATE
July 2013
SOURCE
Scientific Bulletin of National Mining University;2013, Issue 4, p59
SOURCE TYPE
DOC. TYPE
Article
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 â€“ "Wolfram Mathematica". 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 was compiled 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.
ACCESSION #
89877230

## Related Articles

• Eulerian-Lagrangian bridge for the energy and dissipation spectra in isotropic turbulence. Lucci, F.; L'vov, V.; Ferrante, A.; Rosso, M.; Elghobashi, S. // Theoretical & Computational Fluid Dynamics;Apr2014, Vol. 28 Issue 2, p197

We study, numerically and analytically, the relationship between the Eulerian spectrum of kinetic energy, E( k, t), in isotropic turbulence and the corresponding Lagrangian frequency energy spectrum, E( Ï‰, t), for which we derive an evolution equation. Our DNS results show that not only E(...

• A Velocity-Dissipation Lagrangian Stochastic Model for Turbulent Dispersion in Atmospheric Boundary-Layer and Canopy Flows. Duman, Tomer; Katul, Gabriel; Siqueira, Mario; Cassiani, Massimo // Boundary-Layer Meteorology;Jul2014, Vol. 152 Issue 1, p1

An extended Lagrangian stochastic dispersion model that includes time variations of the turbulent kinetic energy dissipation rate is proposed. The instantaneous dissipation rate is described by a log-normal distribution to account for rare and intense bursts of dissipation occurring over short...

• Observations of wind-driven deepening of the surface mixing layer in the Tsushima strait. Endoh, Takahiro; Matsuno, Takeshi; Yoshikawa, Yutaka; Tatsuyama, Yasuto; Ishizaka, Joji // Journal of Oceanography;Apr2009, Vol. 65 Issue 2, p273

A detailed description of wind-driven deepening of the mixing layer in the Tsushima strait is given by combining current data from the acoustic Doppler current profiler (ADCP) attached to a satellite-tracked surface drifter, with microstructure data from the Turbulence Ocean Microstructure...

• Assessing Numerical Error in Structural Dynamics Using Energy Balance. Andujar, Rabindranath; Roset, Jaume; Kilar, Vojko // Advances in Mechanical Engineering (Hindawi Publishing Corporati;2013, p1

This work applies the variational principles of Lagrange and Hamilton to the assessment of numerical methods of linear structural analysis. Different numerical methods are used to simulate the behaviour of three structural configurations and benchmarked in their computation of the Lagrangian...

• Non-Linear Piezoelectric Actuator with a Preloaded Cantilever Beam. Yue Wu; Jingshi Dong; Xinbo Li; Zhigang Yang; Qingping Liu // Micromachines;2015, Vol. 6 Issue 8, p1066

Piezoelectric actuation is widely used for the active vibration control of smart structural systems, and corresponding research has largely focused on linear electromechanical devices. This paper investigates the design and analysis of a novel piezoelectric actuator that uses a piezoelectric...

• An Estimate of the Lorenz Energy Cycle for the World Ocean Based on the STORM/NCEP Simulation. Storch, Jin-Song von; Eden, Carsten; Fast, Irina; Haak, Helmuth; Hernández-Deckers, Daniel; Maier-Reimer, Ernst; Marotzke, Jochem; Stammer, Detlef // Journal of Physical Oceanography;Dec2012, Vol. 42 Issue 12, p2185

This paper presents an estimate of the oceanic Lorenz energy cycle derived from a simulation forced by 6-hourly fluxes obtained from NCEP-NCAR reanalysis-1. The total rate of energy generation amounts to 6.6 TW, of which 1.9 TW is generated by the time-mean winds and 2.2 TW by the time-varying...

• CHORDWISE BENDING VIBRATION ANALYSIS OF ROTATING DOUBLE TAPERED BEAMS USING RITZ METHOD. RAMESH, M. N. V.; RAO, N. MOHAN // Journal on Future Engineering & Technology;May-Jul2013, Vol. 8 Issue 4, p22

Chordwise bending vibration characteristics of rotating double tapered beam have been investigated. Considering the assumed modes method, potential energy and kinetic energy expressions are derived from a set of hybrid deformation variables. The system of equations of motion are derived by using...

• The Lagrangian spectral relaxation model of the scalar dissipation in homogeneous turbulence. Fox, R.O. // Physics of Fluids;Aug97, Vol. 9 Issue 8, p2364

Derives a Lagrangian probability density function version of the spectral relaxation model for the scalar dissipation rate in homogeneous turbulent flows. Inclusion of multiple turbulence time scales through a simple description of the cascade of scalar energy from large to small scales;...

• The generalized non-conservative model of a 1-planet system revisited. Migaszewski, Cezary // Celestial Mechanics & Dynamical Astronomy;Jun2012, Vol. 113 Issue 2, p169

We study the long-term dynamics of a planetary system composed of a star and a planet. Both bodies are considered as extended, non-spherical, rotating objects. There are no assumptions made on the relative angles between the orbital angular momentum and the spin vectors of the bodies. Thus, we...

Share