The article is devoted to the problem of selecting and optimizing the nomenclature of injection equipment for implementing injection technologies in solving various geotechnical problems. The purpose of the study is to justify the use of different types of pumps, taking into account the specific features of the soil, pressure, solution viscosity, and the scale of the work. The methodology includes a comparative analysis of the technical characteristics and operational parameters of plunger, peristaltic, slurry, screw, and georo-tor pumps, as well as an assessment of their applicability in real-world scenarios. The results show that plunger pumps are optimal for high pressures and working with different media, peristaltic pumps in low-viscosity media, slurry and screw pumps for large volumes of work, and georotor pumps for working with high-viscosity media. The proposed recommendations are applicable in the design of injection works in construction and geotechnics.
Keywords: injection technologies, injection of compositions, plunger pumps, peristaltic pumps, slurry pumps, screw pumps, georotor pumps.
The article discusses the existing methods of reconfiguration of radio-electronic equipment and their applicability to unmanned aircraft systems (UAS). Three main directions are analyzed: hardware reconfiguration based on programmable logic integrated circuit (PLIC), functional reconfiguration with redistribution of tasks and adaptive reconfiguration based on fuzzy logic. A comparative analysis of the methods in terms of complexity of implementation and scope of application is carried out. Based on the analysis, the applicability of reconfiguration methods depending on the class of UAS and operating conditions is proposed.
Keywords: reconfiguration, onboard equipment, UAS, PLIC, functional reconfiguration, fault tolerance.
The paper presents the results of an analysis of existing methods and software tools that allow for computer prototyping and calculation of reliability indicators for aircraft instrumentation. The paper identifies a problem related to the lack of solutions that allow for computer prototyping of the dynamic functioning of aircraft instrumentation and its reliability assessment. The paper proposes a method that allows for the simulation of the dynamic functioning of aircraft instrumentation, the construction of «dynamic» fault trees, and the calculation of reliability estimates. To demonstrate the method, a «dynamic» model of the architecture of a computing system with four identical redundant modules has been developed.
Keywords: computer prototyping, FTA, reservation, modeling.
The article discusses the principles of building algorithmic support for a distributed information and measurement system (RIIS) for monitoring the environmental condition of a territorial facility. Special attention is paid to ensuring the uniformity of measurements, analyzing the uncertainty of measurement results, algorithmic risk assessment of developing territories, and evaluating the reliability of control and analysis results. A territorial object is represented as a territorial unit – a geotaxon. A geotaxon is a digital model reflecting the characteristics of the analyzed object, providing monitoring, analysis and decision–making in automatic mode in geoinformation technology. Algorithmic software designed to solve the problems of emergency detection in natural and man-made ecosystems, control the impact of industrial production on the environment, and assess the risk of developing territories affected by hazardous natural processes and their interaction with man-made objects is presented. Geotaxons are classified according to the possible damage caused, which depends on the structural organization of the geotaxon and the type of impact. An example of the implementation of a system for assessing the risk of atmospheric air pollution in the territory of the Kolpinsky district is given.
Keywords: information and measurement system, environmental monitoring, measuring instruments, geotaxon, digital model, integrated assessment, standardized indicators, standardized scales, risk assessment, damage.
This paper presents an automated design method for manufacturing routes in flexible instrument-making environments using dynamic resource management and rule-based operation filtering. The approach enables route generation via critical path analysis, selecting equipment based on technical parameters rather than fixed assignments. Application of the method at ITMO University's experimental facility demonstrated a 25...40 % reduction in production planning time and a 30…50 % decrease in engineering labor intensity. The proposed method is versatile and can be implemented across various mechanical engineering industries.
Keywords: flexible instrument-making production, process planning, technological route, critical path, optimality criteria, dynamic resource management, computer-aided process planning (CAPP), small-batch production.
Strategically designed logistics are an integral component of a company's successful operation. Rational organization of logistics processes improves efficiency and maintains a high level of competition in the economic market. This article analyzes the business process of organizing product supply chains from the approval of a commercial proposal to the delivery of manufactured goods to the customer. IDEF0 (Icam DEFinition for Function Modeling) methodology was chosen as the business process modeling tool for this study. The study identified the input and output information flows, control actions, and mechanisms involved in the supply chain, and constructed a context diagram and a decomposition diagram reflecting the business process under consideration.
Keywords: logistics, supply chain, business process model, functional model, business process, context diagram, decomposition diagram.
This article examines a method for predicting the condition of the stamping die through adaptive estimation of the remaining useful life (RUL) within the framework of approaches to building IoT systems based on edge computing. An algorithmic model of the diagnostic system and an algorithm for a local computing device are proposed. The processing and analysis of data to obtain an estimate of the RUL were conducted based on the Archard wear equation.
Keywords: diagnostic systems, Industrial Internet of Things, edge computing, stamping die condition, material wear prediction.
The paper considers the problems of optical fiber enclosure. The existing methods of manufacturing V-shaped grooves, namely the methods of scribing, are analyzed, and the materials for the manufacture of the case are considered in detail. A new method of manufacturing positioning and temperature control systems has been developed.
Keywords: fiber, VBR, housing, VBR housing, scribing, laser scribing, positioning, temperature control.
Rules for the design of materials for the journal «Pribory».