Finite element modeling of a two‐degree of freedom spherical actuator

COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering - Tập 25 Số 2 - Trang 399-411 - 2006
GrzegorzGalary1, BrunoDehez1, DamienGrenier1
1Center for Research in Mechatronics, Université Catholique de Louvain, Louvain‐la‐Neuve, Belgium

Tóm tắt

PurposeComputational validation of the new concept of the rotor of the two‐degree of freedom spherical actuator is the aim of this paper.Design/methodology/approachThe first approach study leading to optimize the rotor's structure and parameters, realized using finite element method‐based software is presented. Rotor with two layers and rotor with ferromagnetic so‐called “teeth” crossing external layer are discussed.FindingsIt is shown that the rotor with teeth ensures higher torque and efficiency, but a negative slot effect appears, which is, however, possible to reduce.Research limitations/implicationsLimitations in the 3D simulations, especially lack of the movement modeling possibility. For the future the study of some other parameters such as the influence of the magnetic material's saturation, the geometrical from of the tooth and the appearance of the higher harmonics in the signal connected to the non‐sinusodial coupling between the rotor and the stator is considered, as well as the experimental confirmation.Originality/valueNew structure of the spherical actuator's rotor and its advantages are presented.

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Tài liệu tham khảo

Bolkowski, S., Sikora, J., Skoczylas, J., Sroka, J., Stabrowski, M. and Wincenciak, S. (1993), Komputerowe metody analizy pola elektromagnetycznego, Wydawnictwa Naukowo‐Techniczne, Warszawa.

Dehez, B., Froidmont, V., Grenier, D. and Raucent, B. (1999), “Design and modelling of a two degrees of freedom spherical actuator with unlimited angular range”, Recent Advances in Mechatronics, Springer, Berlin, pp. 522‐35.

De Jong, H.C.J. (1976), AC Motor Design with Conventional and Converter Supplies, Oxford University Press, Oxford.

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Thông tin xuất bản

COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

Tập 25 Số 2

399-411

Thông tin tác giả