Study on the Interaction Law between the Shape Parameters and Permanent-Magnetic Adhesive Force of Railway Permanent-Magnetic Track Brake Equipment

Xin Yu Wu; Xiao Shan Lu; Jian Yong Zuo

doi:10.4028/www.scientific.net/AMM.736.121

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 736Study on the Interaction Law between the Shape...

Study on the Interaction Law between the Shape Parameters and Permanent-Magnetic Adhesive Force of Railway Permanent-Magnetic Track Brake Equipment

Abstract:

This paper systematically analyzes the interaction law on how the shape parameters of brake magnet yoke affect the magnetic field distribution and the permanent-magnetic attraction by means of parameterized finite element numerical calculations based on the basic principles of train permanent track brake device and the mathematic model of permanent-magnetic attraction [1]. It is found: the permanent-magnetic attraction decreases with the increase of the width of rotor partition board and maximum value of the attraction appears at 16-20nm; the attraction slowly increases along with the increment of slipper chamfering but will decrease when the magnetic induction intensity of the material is saturated; the increase of the rotating angle of rotational magnetic axis leads to decrease of permanent-magnetic attraction; the vertical air gap between permanent-magnetic track brake and steel rail will make the attraction dramatically drop; and the slipper wear almost has little impact on the attraction. The shape parameters of magnetic track brake should be optimized in design by considering the permanent-magnetic attraction so that the efficiency of the brake can be brought into full play.

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Periodical:

Applied Mechanics and Materials (Volume 736)

Pages:

121-126

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.736.121

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Online since:

March 2015

Authors:

Xin Yu Wu*, Xiao Shan Lu, Jian Yong Zuo

Keywords:

Magnet Attraction, Optimization, Parameterized, Parameters of Brake, Permanent Magnetic Brake

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* - Corresponding Author

References

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