АНАЛІЗ ТРИБОЛОГІЧНИХ НАНОМАТЕРІАЛІВ ДЛЯ ПІДВИЩЕННЯ ЗНОСОСТІЙКОСТІ І ДОВГОВІЧНОСТІ МЕХАНІЧНИХ КОНТАКТУЮЧИХ ПОВЕРХОНЬ ДЕТАЛЕЙ МАШИН І МЕХАНІЗМІВ НА ОСНОВІ ОНТОЛОГІЧНОЇ СИСТЕМИ ПІДТРИМКИ ПРИЙНЯТТЯ РІШЕНЬ

Abstract

The object of research is tribological nanomaterials (TrNMs), which are used to improve the qualities of the mechanical contacting surfaces of mechanical components. The goal is to create Decision Support Systems (DSS) based on the ontological system when choosing the TrNM. It was carried out an analysis of existing studies and publications as to the use of TrNM, which are available on the market of Ukraine and European countries. The analysis showed that TrNMs are classified according to the friction surfaces main features and their purpose. It has been determined that the use of TrNM shows a significant technical and economic effect, as the product service life extents and also fuel consumption decreases due to the reduction of the friction coefficient. It was found that an important consideration when choosing that or another TrNM should be their sustainability, in terms of their environmentally friendly manufacturing and use on mechanical components. It is noted that there is a problem of the existing TrNM classifiers and their substantiating, since their formation lags behind the dynamics of scientific and technological progress. It was reasoned expediency of using an Ontology-Based Decision Support Systems (OBDSS) regarding the selection of TrNM for improving the performances of the mechanical components contacting surfaces. The following results were obtained. According to the analysis of the current interest modern TrNMs and their characteristics, the technologies for the TNMs applying have been considered: "KESON" with the filling of on the friction surfaces micro-valleys with the formation of anti-friction, wear-resistant and adhesive films (coatings), as well as technologies for the use of metal conditioners "Fenom", "ER", "SR3" and "Militec-1" additives, which extend the product service life without overhauls, and remetallizing agents "Lubrifilm" and "Megaforce" with their effect of "non-wear-out-ability". It was found that the main disadvantage of such TrNMs is a pollution of the environment, namely of drinking, ground and surface water. The solution to the environmental issue is possible due to the use of nanodiamonds as a specific universal nanocarbon TrNM, which has the properties of decomposition of harmful organic chemicals. Their “representatives” are "Lubrifilm Diamond Run Ln", "Nanodiamond Green Run", nano additives "Fenom Nanodiamond Green Run" (based on nanodiamonds), "Fenom Old Chap" (based on bentonite nanoparticles), "Renom Engine Nanoguard" (for motor oils) and "Renom Gear Nanoguard" (for transmission oils). To facilitate the choice of TrNM for improving the performances of the mechanical components contacting surfaces, the OBDSS is proposed. Conclusions. The scientific novelty of the obtained results is as follows: it has been created the OBDSS, which takes into account the peculiarities and characteristics of TrNM according to the customer needs, which able to narrow the search range and reduce the time for TrNM selection. The presented materials can be useful when conducting the theoretical and experimental studies on the mechanical components service life in the field of mechanical engineering.