From studies aimed at summarizing the results of private surveys, conditions of high accuracy SFC with single-loop negative feedback are obtained. These conditions reflect the dependences of the magnitude of the coefficient of force and the spacer force generated by the feedback control device on the current coefficient of the gain value of the coefficient of friction, which theoretically ensure the limiting value of the torque transmitted by the clutch, which leads to failure-free operation of the crank presses.

The paper presents the study on modeling of objects and processes to forecast environmental safety in industrially developed regions of Russia. It is shown that the sources of pollution of the regional environment form a complex technogenic system triggering the development of qualitatively new negative processes violating comfortable living conditions of the local population. The complexity and scientific uncertainty of environmental impacts caused the development of modern methods of analysis of environmental safety in the region. The purpose of experimental and theoretical study was to develop a rational complex of modeling procedures ensuring reliable forecast as a basis of efficient solution to manage regional environmental condition. The above purpose was achieved via joint use of such mathematical methods as the integrated system analysis, synthesis of alternatives, algorithmization of processes and generalization of experimental data.

Abstract. The article describes the results of scientific research in the sphere of urban techno-sphere pollution caused by industrial enterprises activity and vehicles gases. It is shown that transport influences greatly the air environment pollution in Russian cities. Methodological approaches to assessing the health risks for urban residents are described. The main statements of the methodology managing the health risks of the urban population are given.

Labor protection is a system of ensuring the safety of life and health of workers in the process of work, including legal, socio-economic, sanitary and hygienic, psychophysical, treatment and prophylactic, rehabilitation and other measures. The functions of labor protection are the study of sanitation and occupational hygiene, the implementation of measures to reduce the influence of harmful factors on the body of workers in the process of work. The main method of labor protection is the use of safety measures. At the same time, two main tasks are solved: the creation of machines and tools, when working with which the danger to humans is excluded, and the development of special protective equipment that ensures human safety in the labor process, as well as training workers in safe working practices and the use of protective equipment, conditions are created for safe work. The main goal of improving working conditions is to achieve a social effect, i.e. ensuring labor safety, preserving the life and health of workers, reducing the number of accidents and diseases at work. Improving working conditions also yields economic results: an increase in profits (due to an increase in labor productivity); reduction of costs associated with compensation for work with harmful and difficult working conditions; reduction of losses associated with injuries, occupational morbidity; decrease in staff turnover, etc. The main document in the normative and technical documentation is the normative act “Occupational safety standards system”.