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In the presented work, the issues of measuring the thrust force of spacecraft thrusters are considered. A program for determining the thrust force based on machine vision has been developed. A mathematical model of the mechanical part of the stand has been compiled. Numerical modeling of the compiled system of equations is carried out. The simulation results are processed using the developed program. The relative error of misalignment is no more than 5 %. Field experiments are carried out and the thrust levels of the ion thruster are measured. A comparative analysis of the experimental results obtained with a mathematical model is shown. Experimental studies have been conducted to determine the thrust of a prototype arcjet thruster using a stand based on machine vision and using a stand based on a displacement sensor. The discrepancy in the results of the thrust force is  5,6 %.

The article presents a quantum mechanical model of an ion thruster. The basic equations describing the shape of the accelerated beam are considered. Detector plates demonstrating the interference pattern in thin films are presented. A mathematical description of the relief of thin films is given using the resulting wave function. The operation of a low-power ion engine is demonstrated. The results of numerical solution of the model with different initial values are shown. Based on the results of calculations, diagrams of the trajectories of charged particles are constructed.

The article examines mechanisms for deepening interaction between universities and enterprises in order to improve the quality of training of specialists and solve scientific and production problems, first of all, considering the problems of organizing production on the basis of a university, in particular, the problems of creating small innovative enterprises in a university environment and the possibility of commercialization are considered scientific and educational activities. The authors consider the features of the activities of small innovative enterprises and emerging risks. They offer mechanisms for building relationships with industrial partners. They pay attention to the rather complex procedure and rules for creating production activities on the basis of a university, analyze the experience of the functioning of small industrial enterprises in Russia, and highlight several problems that in one way or another hinder the widespread organization of production on the basis of universities. The scientific novelty of the article is the attempt to combine into a single system all forms and methods of interaction between the university, school and industrial partner through the creation of a holding company based on basic departments. The main research methods: studying the experience of the country’s leading universities, through the analysis of their charters and the analysis of Internet resources on the functioning of small innovative enterprises — in universities.

In this paper, the applied problems of designing a bridge resonant converter with a high-voltage arc ignition system in the channel of an electric arc motor is solved. The development of a bridge resonant power supply is presented, a review and analysis of power sources of arcjet thruster of various capacities is carried out. The theoretical aspects of calculating the main parameters of the source are considered. The transfer function describing the gain of the resonant circuit of the power supply is given. With the help of the transfer function, gain diagrams are constructed for various values of the Q-factor of the contour. A prototype of a power supply, a starting system and an arcjet thruster is presented. A series of experiments aimed at identifying the operability of the source is carried out. According to the experimental results, the maximum output power of the source wiz 182,4 watts, and the maximum efficiency is 87,5 %. Frequency spectra of the output current of the power supply are obtained. The current-voltage characteristics for the Ar and N2 are constructed. In the course of the study, phenomena related to the chaotic dynamics of the arc in the engine channel are discovered. Chaotic fluctuations are observed at the moment of starting the engine and disappeared after steady-state operation.

A mathematical model of thermodynamic processes occurring in the arcjet thruster device with using argon for arcjet working process carring out. A comparative analysis of the results of experimental data with theoretical data has been carried out. The purpose of the study is to develop a mathematical model of thermodynamic processes in the arcjet thruster device and simulate the interaction of argon with arc discharge plasma. The comparative analysis of the calculated parameters, thanks to the proximity of electron temperature values with the previously experimentally obtained under the static state in the arcjet thruster device, confirms the reliability of the presented mathematical model of plasma processes and the need for its improvement.

When designing natural gas drying equipment, the possibility of implementing an integrated approach to determine the rational technical and economic indicators of the technological devices under consideration is of great importance. This makes it possible to achieve maximum energy efficiency from the operated equipment for each specific field. One of the important tasks to be solved in the development of gas fields is the choice of a method and appropriate technological equipment according to a variety of criteria, including operating costs and the cost of devices, plant performance, metal consumption, replicability of the technology in question, etc. One of the ways to solve such a problem is the application of mathematical methods of system analysis in complex decision-making problems, in particular, the method of analyzing hierarchies.

The article presents the results of a study related to determining the need to replace pumping equipment or impellers of main pumps to increase efficiency while reducing pumping volumes. Calculations are carried out on the example of a technological section of a specific oil pipeline. The paper demonstrates an approach to assessing the economic feasibility of replacing pumping equipment or upgrading it in conditions of changing transportation volumes. The calculation method can be applied to any oil pipelines and product pipelines.

The article presents the results of a study related to the choice of modes and pressure regulation to save electricity. Calculations are carried out on the example of a technological section of a specific oil pipeline. The paper demonstrates an approach to assessing the economic efficiency of each of the flow control options to obtain the required performance. The above arguments and methods of selecting modes can be applied to any oil pipelines and product pipelines.