International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

The stages of the life cycle of complex technical products, such as tractors and self-propelled agricultural machinery, are considered. The need for adjusting /extending/ the repair interval of individual units and assemblies is justified.
A methodology for the technical and economic assessment of the repair interval of tractor units and self-propelled agricultural machinery has been developed, which takes into account the economic effect of extending the repair period, the relative share of the costs of purchasing replacement units and the set value of the confidence probability of the resource of the units.

The stages of the life cycle of complex technical products, such as tractors and self-propelled agricultural machinery, are examined. The need to correct /extend/ the period between repairs of individual aggregates and nodes is justified.
For this purpose, a corrective expression was derived for determining the economically expedient extension of the between-repair period of the machine elements, which takes into account the economic effect of extending the repair period, the relative share of the costs of purchasing replacement units and the set value of the confidence probability of the resource of the aggregates.

As global environmental impacts have increased, modern societies have expressed a strong interest in implementing sustainable solutions to reduce emissions and use operational energy and natural resources. The construction industry is a leading promoter of significant environmental impacts because it consumes a significant amount of water, energy, and materials. Steel and welding are critical in all three major sectors of the industry: construction, infrastructure, and industry. This paper discusses the significance of meeting sustainable development goals in welded structures and identifies ways that this industry can help to reduce environmental impact and improve employment conditions while achieving economic growth, saving time, and maintaining structural quality. The paper discusses how to optimize various aspects ranging from raw material extraction to construction waste disposal using the life cycle assessment (LCA) methodology. It provides a starting point and demonstrates how these tools can contribute to more sustainable welded structures.

Regardless of the length of the period of use of the equipment, due to a change in technology, an increase in maintenance costs or the introduction of new requirements with a change in legislation, the machines become obsolete and are disposed of. The main methods for utilization of tractors and self-propelled agricultural machinery are considered. The equipment necessary for the disposal is also described. The methodology for determining the costs for utilization and the value of the equipment for utilization of the whole machine, element-by-element utilization and utilization after defecting has been supplemented.

The types of entrepreneurial activity and form of enterprises are investigational. Described business system and her elements. Sequence of executions and in accordance with principles which provide the acceptance of effective administrative decisions aimed at realization of investment strategy of industrial enterprises is offered. Tasks which must be the strategies of industrial enterprise taken into account in the process of choice are certain. The stages of life cycle of industrial enterprises are set from the period of “birth” to the period of “expansion”. Expediency of different forms of strategy of diversification of investment activity of industrial enterprises is reasonable.

Theoretical approaches to the investment process` nature definition and the order of investment process` stages have been analyzed. The main trends of enterprises` investment process` introduction have been specified. Dynamics of enterprises` investment process` have been identified. The main features of investment cycle and its liaison with scientific and technical progress have been marked. It has been suggested to study industries` investment attractiveness as integral characteristic of separate economic fields regarding development perspectives, investment yield, and level of investment risks. It has been found out that certain industries` investment attractiveness is evaluated amid enterprise`s investment strategy`s development and field diversification of the investment portfolio.

The report is an attempt to classify different factors and their impact on the competitive potential of the company. An attempt to find a link between competitive potential, realization of investment projects and financial potential. Significant impact on the growth of competitive potential has financial potential. In the article examines the theory of the life cycle of industrial enterprises and the possibilities for its use to solve the problems at any time. The report examines the management issues of the innovation potential of industrial enterprise. The main components of the innovation potential as an economic category are investigated and recommendations to evaluate innovation potential are proposed.

The car is prevalently considered as a technical system that produces costs and pollution, also as a source of exhausted parts and recycled raw material. In the course of entire life cycle it seriously deteriorates natural balance to the extent to appear as a threat to overall ecological biodiversity on the Earth. Due to mass production and use what includes building-in vast number of materials and component that yield adverse effects on human health, engine cars has become one of major problems of today.
The management of secondary waste requires an established flow of integrated information as well as an complementary system of knowledge and methods regarding landfill remnants reduction and adequate treatment of useful materials. Global automotive industry incites development of national economies and integrates contemporary achievements in the areas of techniques, technology and other scientific disciplines. Thus, the aspects of energy efficiency, waste recycling and environment protection sustainable development environmental shall be taken into account in car designing and production.