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The article is devoted to the problem of researching the levels of risks of insurance accidents and traumatic events using the component method. The study used data from the Social Insurance Fund of Ukraine on the content of the causes of insured accidents and types of traumatic events for the period 2017-2020. The existing system of labor protection management at the state and production levels in Ukraine is not effective enough and requires the selection of objective and effective methods for determining the quantitative characteristics of industrial risk. The main requirement for the results of quantitative assessment of industrial risks is the objectivity of the information provided on emergency situations. The study of the causes of incidents and the development of recommendations for reducing occupational risks for workers were performed. To increase efficiency, it is proposed to use the component method. The essence of this method is to compare the assessment data with the determination of the risk of traumatic event on the basis of averaging the distribution of risk on the indicators of risk-relevant information. The study shows the universality of the component method of determining the levels of risk in enterprises of different industries, profile, level of automation, production volumes. The use of a component method for assessing the risk of traumatic events allows you to quantify the indicators of risk-relevant information and determine the distributed levels of industrial risks of 18 types of traumatic events. By comparing the risk distribution data obtained by the modified matrix and component method, it is shown that when the component method is used, the risk is distributed more evenly and closer to the causes of real injuries due to the leveling of such factors as subjectivity. The study of the risks of insurance accidents and traumatic events using the component method showed a different picture: an increase in the share of organizational causes and a decrease in the share of psychophysiological and technical reasons, a decrease in the share of major events in general. This is observed against the background of declining industrial production and indicates a relatively high degree of wear and tear of means of production (machines, production lines, mechanisms), weak motivation of workers for personal safety, which requires improving the legal framework for occupational safety, introduction of progressive forms of compliance standards for parameters of microclimatic conditions in the work area - automation (temperature, dust, noise, vibration, concentration of hazardous and harmful substances). This will have a positive effect on the psycho-emotional state of employees.

The aim of the work is a simulation of dynamic explosive loading of the body of a specialized armored vehicle based on the development of theoretical foundations of shape change under the action of pulsed influence and calculation of power parameters. The further equation of the stress state at the point of the material under the conditions of pulse loading was obtained, the methods for determining the principal stresses and the invariant of the stress tensor considering the pulse nature of the load were established. The nature of the formed shock wave behavior due to the detonation of an explosive has been established. Analytical dependencies of the interaction of the shock wave with the loaded surface are made. A mathematical apparatus for calculating such parameters of the shock wave as the pressure of the detonation front and its change in time and the velocity of the shock wave at the time of reaching the surface has been developed. The authors developed and proposed an iterative procedure that allows determining the current values of stresses and strains passing through the points of the actual stresses curve, as well as the stresses and strains intensity during pulse loading of metals. A qualitative analysis of the developed models is performed and the values obtained during numerical simulation in the Ansys AUTODYN of the stress-strain state of workpieces during the explosive expansion using an iterative procedure. Using the analytical method proposed in the work, the theoretical calculation of mine resistance of the MPV's bodies was performed in accordance with the requirements of the NATO AEP-55 STANAG 4569 standardization agreement. The solution to this problem can be used in the future to evaluate the plastic properties of materials during welding and blast hardening; with explosion stamping of blanks and combined welding and explosion stamping operations; with impulse methods of stamping - magnetic-pulse, electro-hydraulic, gas detonation, etc., when parts of the workpiece collide with the matrix, and the other part continues to deform; when stamping on hammers; when crushing materials by the impact of a rigid body; explosion crushing of multicomponent environments; determined ballistic resistance of elements of combat equipment. Keywords: simulation, explosive loading, impulse impact, specialized armored vehicle, mine resistance.

This paper reports measuring, modeling, and determining the optimized air ionic composition of the air at industrial premises to ensure safe living and working conditions for workers. The possibility of using saline solutions with different degrees of concentration to increase the number of negative ions in the airspace, as well as the variability of the air flow rate for the process of ionization of the air of industrial premises, has been investigated. Analysis of experimental data revealed that an increase in the concentration of saline solutions leads to a decrease in the release of the number of air ions into the vapor-air space of the room. It is proved that in order to improve air quality, it is advisable to enable air ionization using an ultrasonic air ion generator and the use of demineralized water. The optimal input parameters established for the ultrasonic installation are: s –distance to the ultrasonic installation, 40 cm; v ‒ airflow rate, 6.00 m/s; and c ‒ concentration of salt water solution, 3.3 %. The result reported here could be used in the design and development of a control system for an ultrasonic generator of air ions of ventilation systems and microclimate systems in order to create the most comfortable high-quality ionized air at industrial premises. To find the optimal mode of operation of the ionization process, a representation procedure for a neural network was applied, which was most accurate to determine the optimal parameters for ionizing the airspace of the working room. Optimization was performed using a Feed Forward Bottle Neck Neural Network (FFBN NN) representation. This approach allows one to determine several optimal conditions for the process under study on the basis of a compromise solution.