The article provides an analysis of approaches to assessing the life of the supporting structures of rolling stock using a finite element analysis system. In this paper, an analysis of methods for processing medium stresses is made. Properties that characterize fatigue on Ansys Mechanical software are presented. Based on existing methods and approaches, an analysis of the fatigue strength of the pivot assembly of the bogie frame of the TEM2 shunting diesel locomotive was made. To confirm the reliability of calculations of approaches to assessing fatigue strength using finite element analysis systems, algebraic formulas are given.

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This paper presents an economic comparison of using two different types of lifting. As an example we consider object with 15-storey and 25-storey building. Calculation of operating costs and purchase or rent, including all technical specifications for each of lifts in 15-storey and 25-storey buildings. Comparative analysis results show advantage of purchasing or renting of equipment

The subject of the research is the electromechanical transmission of a mining truck, which provides all modes of movement of this type of mining equipment. The purpose of the work is to develop an electromechanical transmission of a mining truck that meets high requirements for unification and reliability, ensuring resource saving during its creation and exploitation. The main task is the optimal choice of the electromechanical transmission components, as well as the study of their influence on each other. Math methods and simulation modeling in the mathematical package of applied programs were used to perform the study of the developed electromechanical transmission. A complex simulation model has been created, it includes: a source of electricity; frequency converter (amounting to the active rectifier (energy converter and excitation device) and autonomous voltage inverters); asynchronous motors. The simulation model is equipped with blocks of oscillography and analysis of electrical variables of an electromechanical transmission. The study of the simulation model of an electromechanical transmission shows the strict correspondence of the speed characteristics of both drive engines and the mining truck. The vehicle accelerates to the rated speed at full load, braking on a slope, and turning. The electrical parameters of the electromechanical transmission correspond to the task, the control of variable drive engines in all modes of operation is provided at the proper level.