Kuzmych Lyudmyla ,

Language: ukrainian


Urgency of the research. The peculiarity of problems of reliability of complex technical systems is their connection with all stages of the life cycle of these objects of objects, design, construction, operation and development. Therefore, it is necessary to identify possible connections and contradictions in the formation of structures, nodes and when selecting materials.

Target setting. Identification of the actual state of complex technical systems and structures, detecting the boundary condition, forecasting the dynamics of changes in the state of the operation, determining the residual resource - all these tasks are the components of a single problem - ensuring the reliability of complex technical systems.

Actual scientific researches and issues analysis. There are four properties of reliability: reliability, durability, preservation and maintainability.

Uninvestigated parts of general matters defining. In order to determine the reliability of complex technical constructions, it is necessary to take into account the effects, that is, any causes that result in changes in the design of internal stresses, deformations or other parameters of the state.

The research objective. On the basis of the reliability theory an analysis of the dependence of the properties of the reliability of complex technical systems on various influences, in particular mechanical, in the form of various deformations and stresses, has been carried out.

The statement of basic materials. Analysis of various impacts on a complex technical system, including mechanical ones.

Conclusions.In most cases, the influence of the variability of geometric characteristics on the reliability of structures is much smaller compared to the influence of the variability of loads and technical characteristics (physical and mechanical properties) of materials. In such cases, the geometric characteristics are considered as deterministic values with the nominal values specified in the design or given in other documents

Key words:

complex technical system; reliability; properties of reliability; mechanical influences; deformations; stresses.


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