A theoretical and experimental study of the effect of gravity, which occurs in a cylindrical linear synchronous motor between the secondary element and the inductor, was carried out. As a result, the forces of mechanical friction of the secondary element on the inductor are formed, which entails touching the secondary element on the surface of the inductor. An unfavourable result is a weakening of the power force that is working for a cylindrical linear synchronous motor. Two different inductor designs for a cylindrical linear synchronous motor have been studied. When solving this problem, we used an approach based on a combination of the field theory method and the theory of electric circuits. The forces of gravity, friction, and force between the secondary element and the inductor for these structures are determined. Experimentally, it was found that the pull force significantly weakens the working force of the engine. Based on the results obtained, conclusions were drawn about the need to change the design of the inductor. The design change of this element consists in the use of a non-magnetic intermediate centralizer, which is inserted between two sliding bearings located at the ends of each module of a cylindrical linear synchronous motor. Also, changes were made to the design of the magnetic circuit, in which instead of one slot for a three-phase winding system, three symmetrical slots were made, each for its own phase of the three-phase winding. As a result, the magnetic system of the engine in question became axisymmetric. The measures taken to change the design of the engine in question allowed us to dramatically reduce the effect of gravity. As a result, the specific force has increased significantly.
An electric drive is an indispensable part of any mechanism. Without it, the the functioning of any industry is impossible, especially in the railway. It allows you to automate technological processes and increase their efficiency. For efficient railway transport, it is necessary to increase the level of technical development of traction rolling stock, which is possible through the use of promising types of electric machines, one of which is a switched reluctance motor. To create a highly efficient and technological switched reluctance electric drive, it is necessary to have information about the relationship between the geometric dimensions of its magnetic system and the average value of the electromagnetic moment. The purpose of this article is to determine the strength and direction of the relationship between the average value of the electromagnetic moment and the changing geometric values of the tooth-groove zone of the object under study. The numerical value of the electromagnetic moment was obtained using the stochastic method in the MATLAB application package, which directly interacted with the FEMM version 4.2 program, which is based on the finite element method. The research carried out in the article and the results obtained allow us to conclude that there is or is not an appropriate connection between the considered elements of the magnetic system design and the value of the electromagnetic moment.
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