FLYWHEEL FOR MACHINES WITH WEIGHT RESTRICTIONS

Abstract

The study objective is to substantiate the possibility of designing a flywheel with a high moment of inertia and low mass for use in machines with weight restrictions. The problem to which the paper is devoted is the analytical synthesis of the artificial moment of inertia and setting its defining parameters. The methods of electromechanical analogies are used, in particular, the duality of the inert mass and the electric capacity. The novelty of the work is in getting the formula of the moment of inertia expressed in terms of magnetic induction and electric capacity. Research results: it is noted that the mechanical mass necessarily satisfies Newton's second law. The latter condition is the basis for creating an artificial mass that is not related to either the volume or the density of the material of an artificially inert object. Electromagnetic mass is meant in this case. Its inertia, including satisfaction with Newton's second law, is due to the well-known inertia of electromagnetic processes. It is found out that a device with an artificial moment of inertia can include an electric capacitor and an electromechanical converter, for example, a DC machine. Analogies existing between physical quantities of different nature do not automatically lead to the possibility of obtaining corresponding functional dependencies. To do this, first of all, technical means are needed to ensure the coordination of the dimensions of dual quantities. The main advantages of an artificial flywheel over a natural one are incomparably lower weight and the possibility of electrical control of the moment of inertia over a wide range by changing the magnetic field (excitation) and capacity, that gives a good prospect of its application in automatic control systems.