Sagit Valeev

Sochi State University · Faculty of Ecology and Engineering

Distributed organizational and technical systems belong to the class of complex hierarchical man-machine systems. Analysis of the state for such systems is a nontriv- ial task. Methods of system analysis are used, so the complex system is decomposed into subsystems and business processes, implemented at various hierarchical levels to achieve the ma...

Distributed organizational and technical systems belong to the class of complex hierarchical man-machine systems. The analysis of the state for such systems is a nontrivial task. The methods of system analysis are used, so the complex system is decomposed into subsystems and business processes, implemented at various hierarchical levels to achieve...

The task of choosing the modes and duration of life tests of complex technical objects, such as aircraft engines, is a complex and difficult-to-formalize task. Experimental optimization of the parameters of life tests of complex technical objects is costly in terms of material and time resources, which makes such an approach to the choice of test p...

The problem of production planning as an element of Gartner enterprise architecture in a distributed organizational and technical system is considered on the example of a construction company of medium and large scale. Mathematical models for planning organizational and technical resources in a distributed system as elements of patterns are discuss...

The designing a digital twin of the process of the thermal cutting of sheet material using laser or gas equipment for its figure cutting is considered. The solution to the problem of optimizing the path of the cutting tool taking into account the thermal effects on the material to be cut is discussed. The solution of the problem of modeling the tem...

A gas turbine engine represents a complex dynamic control object. Its characteristics change depending on the state of the environment and the regimes of its operation. This paper discusses an algorithmic approach to the design of a nonlinear controller, based on the concept of constant eigenvectors and analytical design of the control system. The...

Boosting efficiency of fatigue test for the complex technical object (for instance, aircraft engine) is possible applying assessment based on the integral relationship between the economic effect from the object operation and test parameters. The issue of assessing the efficiency criterion of fatigue test in the framework of the complex technical o...

Process Safety and Big Data discusses the principles of process safety and advanced information technologies. It explains how these principles are applied to the process industry and provides examples of applications in process safety control and decision support systems. This book helps to address problems that researchers face in industry that ar...

The main components of the data ecosystem that includes data models and technologies for storage, transmission, and processing are considered. An effective solution to computational problems requires an analysis of the complexity of the algorithms. The features of sorting arrays of numbers are considered. To store large amounts of data, special sof...

The chapter discusses the features of the application of technologies of simulation based on big data to provide process safety. One of the important problems during the simulation is ensuring the accuracy of simulation models and finding potential sources of errors. Algorithms for modeling input random effects are based on the Monte Carlo method....

The chapter discusses the basics of big data analytics and the features of using analytical models in the field of process safety and risk management. The definition and basic principles of data analytics are necessary to understand the analytical techniques. The requirements for input data and the properties of analytical models are important for...

The chapter discusses the safety of technological processes in the oil industry and petrochemical production. One of the common features of these industries is that production processes are implemented on the basis of large-scale infrastructure facilities. This chapter discusses the study and analysis of the behavior of large-scale systems based on...

The flow of data obtained using various sensor systems is converted to digital form and can be used to solve problems of ensuring process safety. If it is necessary to use the experience of personnel and experts for effective actions while minimizing risks, then expert assessments are made of the nature of the processes that are described in qualit...

The chapter discusses such important concepts for process safety as hazard, risk, and probability of an undesirable event. Evaluating and calculating process safety is based on probabilistic techniques. The necessary information from probability theory is provided to understand proposed methods of risk assessment. Recommended risk assessment techni...

The chapter discusses the features of the formation of data arrays in the process of measuring parameters characterizing the state of technological processes. Analog, digital, and software sensors are considered. The purpose of the SCADA (supervisory control and data acquisition) system and the hierarchical organization of the network infrastructur...

A gas turbine engine is a nonlinear and multi-mode dynamical control object. A synthesis of a nonlinear multi-mode gas turbine engine controller in a state space is considered. An algorithmic approach for the synthesis of a nonlinear multi-mode controller for a gas turbine engine the description of which is given in the form of a set of linear mode...

The problem of designing multi-level intelligent control systems for complex technical objects on the basis of the theoretical-information approach is discussed. The proposed approach allows us to make well-grounded project decisions when designing control algorithms for advanced control systems. The problem statement of applying the proposed appro...

The problem of optimizing the life cycle of complex three-dimensional objects in small-scale production is considered. Additive technologies and optimization algorithms for the placement of three-dimensional objects are considered as technologies to solve this problem. Using the multilevel synthesis method can significantly reduce the time for prot...

The problem of system design of complex technical objects based on intelligent technologies is considered. An optimization model for the conceptual design of a micro-mini-satellite based on a genetic algorithm is discussed. An artificial neural network model of a propulsion system is considered, as well as a heuristic algorithm for analyzing the cr...

The development of a lifecycle support system for a complex technical object that enables information exchange in a shared information environment during the whole lifecycle is highly important. A problem of information flows control generated at various stages of life cycle of gas-turbine engine, using intelligent software agents is considered. Th...

The solution of the problem of resource management in distributed computing systems of processing stream data in safety systems of distributed objects is considered. The tasks of streaming data processing in a multi-level multi-agent evacuation system in an infrastructure object are considered. The features of the mathematical model of a distribute...

The application of predictive analytics in the design, production and operation to achieve the efficiency of the life cycle of complex technical systems is discussed. A predictive model of information support for the life cycle of a microsatellite propulsion system based on a neural network system is proposed. The predictive model can solve the pro...

Modern aviation industry is a complex large-scale system that includes designing, testing, production, operation, maintains services, etc. Thus, it seems reasonable to provide information logistical support throughout the life cycle of single processes in this area. On the other hand, it allows building stochastic models to manage aviation industry...

The solution of the problem of resource management in distributed computing systems of processing stream data in safety systems of distributed objects is considered. The tasks of streaming data processing in a multi-level multi-agent evacuation system in an infrastructure object are considered. The features of the mathematical model of a distribute...

The application of predictive analytics in the design, production and operation to achieve the efficiency of the life cycle of complex technical systems is discussed. A predictive model of information support for the life cycle of a microsatellite propulsion system based on a neural network system is proposed. The predictive model can solve the pro...

The problem of distributed storing and processing of streaming data in IoT systems is considered. A mathematical model and agent-based software architecture for distributed streaming data processing over heterogeneous computer network is offered. The software architecture determines the following features of IoT nodes software: structure of softwar...

The problem of distributed storing and processing of streaming data in IoT systems is considered. A mathematical model and agent-based software architecture for distributed streaming data processing over heterogeneous computer network is offered. The software architecture determines the following features of IoT nodes software: structure of softwar...

Processing Big Data in large scale system is a new direction of development of information technologies, including methods and algorithms of streaming data in real time mode. In the paper, application of Markov Decision Process System for large scale system management based on Big Data concept is proposed.

The architecture of distributed information and control system for emergencies in critical infrastructures is presented. The hierarchical structure of data processing is proposed. Application of cloud computing for real time systems is discussed.

Increasing efficiency of fatigue testing complex technical systems (for example, aircraft engine) is possible with its technical and economic assessment on base of relationship with the economic effect from the system operation. The amount of data is received during the engine life cycle. It should be properly processed to build the lifecycle model...

In this paper, the problem of reducing the risks involved in the critical situations in the techno-social systems with complicated infrastructure and characterized by large crowds, such as airports, train stations, shopping centers, etc. is considered. The task is to be solved with technical safety system on the basis of fuzzy decision support syst...

The problem of aircraft midair collisions exists since aviation appeared. One of the instruments used for increasing flight safeness is Traffic Alert and Collision Avoidance System (or TCAS). TCAS is an airborne system that monitors the airspace around flying aircraft and detects nearby aircrafts. In critical situations (when distance between aircr...

This paper considers the design concept of an adaptive data acquisition system in technical safety systems. The authors propose an heuristical relocation algorithm for data acquisition sensors. Finally, the simulation results of this algorithm are analyzed.

Intelligent components of life cycle information support system for complex technical system are considered. The usage of genetic algorithm for optimizing complex technical system structure based on product data management database (PDM) is proposed. Complex of neural networks is used as " through life cycle " intelligent model to solve the tasks o...