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Functional Concept of a Multipurpose Actuator: Design and Analysis

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Russian Physics Journal Aims and scope

The principles of operation (dynamic characteristics) of electromagnetic devices are discussed using a threephase multifunctional actuator as an example, whose major limitations are associated with the magnetic field nonlinearity and control over the magnetic forces affecting the moving element. The investigation is carried out using the methods of physico-mathematical modeling and a full-scale experiment. A physico-mathematical model is proposed, which is based on acceptable approximations and simplifications, the replacement of a nonlinear (but periodic) magnetic field in a quasi-stationary state by a harmonic magnetic field being the most important among them. The magnetic permeability in every cell of the discretization grid is assumed to be constant and corresponds to the local magnetic flux density. The features and characteristics obtained through this modeling are quite consistent with the observed behavior and measured values. It is shown that the dependence of friction coefficient on its velocity exhibits a hysteresis.

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Authors and Affiliations

  1. Czech Technical University, Prague, Czechia

    Vladimir Krivka

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  1. Vladimir Krivka
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Correspondence to Vladimir Krivka.

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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 1, pp. 149–157, January, 2018.

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Krivka, V. Functional Concept of a Multipurpose Actuator: Design and Analysis. Russ Phys J 61, 169–178 (2018). https://doi.org/10.1007/s11182-018-1381-y

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  • DOI: https://doi.org/10.1007/s11182-018-1381-y

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