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Complementary Assembly Method for Reducing Energy and Resource Consumption in the Production of Electromagnetic Drives

This article discusses the development of a method for assembling electromagnets based on the mutual influence of the magnetic characteristics of the parts. It also clarifies the term “complementary assembly” as more appropriate than “selective assembly” for this, as well as similar methods. For clarity, the model of the magnetic system is proposed to be considered in the form of an equivalent electric circuit, which allows you to concentrate on the most important factor affecting the final characteristic - the magnetic permeability of the material, or by analogy, presented in the form of magnetic resistance. The developed equivalent circuit, with the exclusion of effects that have less influence on the operation of the electromagnet, is a chain of series-connected resistors. The total resistance of these resistors must be kept constant to provide the closest possible output characteristic. The complementary assembly becomes possible by picking up the resistances of the resistors (which represents the magnetic properties of the real parts of the electromagnet) to get as close as possible to the required total resistance. Thus, the resistances of some resistors compensate for the deviation of the resistance of other resistors. The real influence of the magnetic properties of parts on the traction force was verified by the constructed experiment with statistical data processing.