ENERGY AND RESOURCE EFFICIENCY OF TRIBOLOGICAL ENGINEERING METHODS APPLIED TO CONSTRUCTION MACHINERY AND EQUIPMENT

The subject matter of the article is the energy and resource efficiency of tribological engineering methods applied to working sections and interfaces of construction machines and equipment exposed to varied temperature and loading conditions. The relevance of the problem is based on the need to increase the durability of working sections exposed to intensive wear and tear, to improve the productivity and to reduce the material and power expenses associated with the maintenance and repair of the above items of machinery. The solution is based on tribology-related achievements. Effective tribological methods include surface cladding and spraying of wear-resistant materials onto the wear surface, induction brazing of reinforcing hard alloys, thermal and chemicothermal treatment, etc. The most effective is an integrated structural and surface-treatment method. The resource efficiency of tribological methods is based on their energy efficiency at the stages of manufacturing and operation. Extension of the service life of products shouldn't increase the energy consumption rate. The latter is estimated with the help of the efficiency factor of tribological systems. The authors propose a new deformation and topography-related method of identification of the efficiency factor of rubbing elements. It encompasses multiple friction and wear models