Olga Afanaseva

Saint Petersburg Mining University · Department of System Analasys and Management

Autonomous Underwater Vehicles (AUV) are one Of the most advanced areas Of underwater robotics development. One of the acute industry problems of the Mineral Resource Complexes (MRC) is the insufficient geological study Of the territory Of Russia and its continental shelf. This paper demonstrates a review of the world's experience with using AUV to...

Civil engineering is an important branch and always making human life safe and cheerfull. Researchers in the field of civil engineering are always enthusiastic and trying to overcome various challenges by providing advance solutions. The scope of civil engineering has widen considerably and it is demand of society to get better solutions through sc...

For effective management of an investment project, it is necessary to correctly identify and estimate possible risks. Currently, a number of works are devoted to research on the methodological foundations of risk management in the implementation of investment projects, but they all depend on the specifics of the projects themselves. The purpose of...

The article discusses the method and results of processing statistical data from an experimental study of vibrations in marine diesel engines caused by the operation of cylinder-piston groups. The results of the application of a ranking method for identifying factors that influence vibration in marine diesel engines are presented to determine the m...

The development of network technologies leads to the introduction of data transmission systems in all areas of human activity . Problems cover large areas with reliable networks, intellectualizing devices for receiving and transmitting data, increasing the speed, quality and spectrum of transmitted information. Requirements for the given characteri...

The article is devoted to the problem of the growing need of the mineral water fields’ exploitation process automation. The implementation of control systems and mathematical modeling methods can significantly reduce the fields’ structural integrity violation and pollution of aquifers risks. This research is especially relevant for the fields with...

Progress in the creation of automata for making decisions in human-machine complexes is still permissible only on the path of creating separate software and hardware tools that enable the decision-maker (DM) to effectively implement the tasks of management, planning, and forecasting. This is due to the fact that the decision-making procedures in co...

In modern conditions, glass and glass products are becoming more and more demanded in various industries. At the same time, the industry makes more and more stringent requirements for the quality of products. This requirement forces glass manufacturers to improve production technologies aimed at improving the quality and reducing the cost of produc...

The method, allowing to restore revolting influence is offered in the paper, being based on target data and on elastic damping properties of the investigated object considered as multielement system. The example, illustrating applications of the offered method for sequence of two one-mass systems is resulted.

The most intense source of vibration and, as a consequence, the noise of the internal combustion engine is the cylinder bushings and blocks oscillations resulting from the pistons shifts and canting within the thermal gap. Therefore, the introduction of technical solutions aimed at reducing the intensity of these oscillations is the most effective...

Nowadays, at all levels of created automated control systems for technological processes, programmable technical means are used that require specific software within framework of necessary functional tasks. This software should include a set of software tools that communicate with technical devices and organize «human-machine interface» (HMI) in th...

Practically all real control objects are characterized by a certain spatial extent. In this regard, the controlled values of such objects depend not only on time, but also on the distribution over the spatial domain occupied by the object. The changes of controlled quantities, both in time and in space, are described by partial differential equatio...

Ecological and resort area of Caucasian Mineral Waters occupies a special place among the resort regions of Russia due to the richness, diversity, quantity and value of mineral waters, landscape and climatic conditions, therapeutic muds. The pace of development of mineral water resources for the resort and industrial bottling has recently increased...

The paper considers an important problem of designing distributed systems of hydrolithosphere processes management. The control actions on the hydrolithosphere processes under consideration are implemented by a set of extractive wells. The article shows the method of defining the approximation links for description of the dynamic characteristics of...

The article considers the important issue of designing the distributed systems of hydrolithospere processes management. Control effects on the hydrolithospere processes are implemented by a set of extractive wells. The article shows how to determine the optimal number of extractive wells that provide a distributed control impact on the management o...

Under the conditions of economic growth, the issue of the rational use of energy resources becomes more and more critical. This article is experimental and is dedicated to the research in the field of the reduction of electricity consumption by the heating elements of the tunnel furnaces of the pipeline type. In the article, it is proposed to repla...

At the present stage of development of automatic control systems the issue of maintaining of a given temperature regime appears. The authors have developed a method of synthesis of nonlinear regulators to stabilize a control object temperature field. The resulting controller allows creating an adaptive regulated system to maintain a temperature fie...

This article presents the concept of systems with distributed parameters and investigates the method of distributed controller synthesis and a homogeneous control object. This article analyzes main methods of transferring heat energy. On the basis of the heat-transfer equation, the function of initial heating has been obtained, and the process has...

The article is dedicated to the improvement of the stabilization system of temperature fi elds of complex control systems. During the synthesis of the control system, the function of the initial heating was obtained, some experiments were performed to analyze the distribution of the temperature fi elds, and the analysis of the results was carried o...

Одним из важнейших показателей технического состояния дизелей являются уровень и характер изменения параметров вибраций, как наиболее чувствительных к различным от-клонениям технического состояния от нормы. В статье рассматриваются методы оценки виброактивности двигателя, порождаемой газодинамическими и механическими факторами. Рассмотрена возможн...

In this paper the method of synthesis of distributed regulator, uniform control object is regarded, which is based on the specified inaccuracy. The function of the initial heating has been received; the mathematical modeling of the process has been conducted as well as the analysis of the results. With the help of the obtained regulator hardware an...

This article considers the problem of protecting crew and passengers against noise and vibration emitted by marine engines. The authors present their method of how to evaluate the engine's vibration activity caused by gas-dynamic and mechanic factors. This vibration diagnostic method can be effectively used to solve the problem of negative impact o...