Experimental studies on the burning of nanoaluminum-based solid rocket propellants are carried out. Data on the properties of condensed combustion products, mechanisms of their formation, and burning-rate law are obtained.\ud Based on these data, a physical picture is developed of the considered burning-propellant classes. Mathematical modeling of burning nanoaluminum in composite solid rocket propellants is carried out. The influence of nanoaluminum on ignition temperature of the metal fuel and burning-rate law is shown. The results of this study allow carrying out the analysis and selection of good-quality propellants using nanoaluminum

This paper reports results obtained from an experimental study of the combustion mechanism of aluminized propellants based on an energetic binder. The techniques used in this investigation include: * Quench-collection of condensed combustion products in the gas phase zone above the burning surface and study of the products including mass, chemical, and structural analyses and particle size measurements * Measurement of propellant burning rate * Study of combustion residues collected using special plates On the basis of the experimental data obtained, a general physical picture of combustion of aluminized propellants based on energetic binders was developed. The results of this study allowed us to refine the general understanding of metallized propellant combustion, to identify problems related to the use of such propellants, and to suggest methods for the optimization of high-energy solid rocket propellants.* Quench-collection of condensed combustion products in the gas phase zone above the burning surface and direct study of the products, including mass, chemical, and structural analyses and particle size measurements * Measurement of the propellant burning rate * Study of combustion residues obtained using special collecting platesThe techniques and equipment used are described in [1] and [2]. For a quantitative description of the process the following parameters are used: * f m (D) -mass-median probability density of size of agglomerates * f m (d) -mass-median probability density of size of smoke oxide particles * Z m -fraction of unburned metal in agglomerates relative to initial metal content in propellant * Z ox m -fraction of initial metal content in propellant used to form oxide in agglomerates * Z a m -fraction of initial metal content in propellant used to form agglomerates * h -mass fraction of oxide in agglomerate * D 43 -mass-median diameter of agglomerates, mm

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The analysis have been carried out for the production of all-wheel drive articulated dump trucks. The practical experience of operation of dump trucks as open-pit transport has been analyzed. The paper describes the technical characteristics of some models of articulated dump trucks of Russian and Belarusian production. The paper describes the examples of transportation of rock mass at enterprises of Russia and abroad. The paper points up the special aspects for making the organizational, technological and design decisions in the implementation of articulated dump trucks. The paper shows the experience of operation of all-wheel drive articulated dump trucks in open-pit mining. It has been established that articulated dump trucks allow to increase the efficiency of mine development at the stage of construction and commissioning of mining and processing plants, especially in geographically remote and inaccessible territories The measures have been developed for safe operation of all-wheel drive articulated dump trucks in open-pit mining at the development of deep-seated mineral deposits.To implement the program of import substitution of all-wheel drive articulated dump trucks it is necessary to perform market research to study the possible market of consumption of vehicles of this class at open-pit mining operations in order to justify the prospects for provision of the Russian production market.