High-Efficient Linear Oscillatory Actuator Drive Systems Optimized Current Waveformn

Izumi, Teruyuki; Ibuki, Yoshifumi; Yamashita, Makoto; Shimizu, Hirokazu; Nakayama, Satoshi; Abe, Hideaki

doi:10.1109/pccon.2007.373077

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…In most cases, linear motors are used as direct drives that allow dynamic operation. 1,2 Various LPM motor topologies have been investigated in detail. [3][4][5] The normal attractive force between mover and stator-one drawback of linear motorshas been analyzed, and possible solutions have been investigated to reduce this unwanted characteristic.…”

Section: Introductionmentioning

confidence: 99%

Active bearing force reduction in non-commutated linear actuators

Poltschak

2016

Proceedings of the Institution of Mechanical Engineers, Part I:

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Planar linear magnetic actuators are used in a wide range of industrial applications. Permanent magnet movers in particular allow high axial thrust forces, which result in considerable destabilizing stiffness in the direction perpendicular to the direction of motion. These forces, which can reduce bearing lifetime significantly, must therefore be stabilized with linear bearings. This paper introduces an integrated active bearing-force compensation concept that minimizes the forces acting on the mechanical bearings. The potential and limits of bearing force compensation are analyzed based on a short-stroke linear actuator with an E-shaped stator. Further, the extent to which bearing forces can be compensated for, even with simple actuator layouts, is described. Particularly in linear oscillating drives, such compensation can (i) significantly reduce wear and thus improve lifetime and (ii) reduce the size of mechanical bearings. Measurements of a prototype system confirm the simulated results.

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Section: Introductionmentioning

confidence: 99%

Active bearing force reduction in non-commutated linear actuators

Poltschak

2016

Proceedings of the Institution of Mechanical Engineers, Part I:

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“…With its simple structure, small volume, low losses and easily controlled, LOA is used as an actuator for short stroke reciprocating motion. It has been applied to various fields such as: vibrators, air compressors, and Stirling cycle refrigerator, and more recently, artificial hearts [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Research on the Mathematics Model of a Permanent Magnet Linear Oscillatory Actuator with Moving Iron and Non-Salient Pole

Pan

Wang

Xia

et al. 2012

AMR

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A novel permanent magnet (PM) linear oscillatory actuator (LOA) of moving-iron and non-salient pole was presented on the basis of LOA research. The mathematical model of the LOA based on the magnetic circuit method was established, and derived the relationship between electromagnetic thrust and coil current, mover’s displacement. The thrust of LOA was simulated by the Finite Element Method (FEM). The corresponding experimental results verifies the electromagnetic thrust is direct proportional to coil current and reverse proportional to mover’s displacement during effective mover’s displacement. So the derived mathematical model based on the magnetic circuit method is correct. This conclusion provides a theoretical basis for the further calculation of thrust, the selection of control current and the design of controlling method.

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High-Efficient Linear Oscillatory Actuator Drive Systems Optimized Current Waveformn

Cited by 2 publications

References 6 publications

Active bearing force reduction in non-commutated linear actuators

Active bearing force reduction in non-commutated linear actuators

Research on the Mathematics Model of a Permanent Magnet Linear Oscillatory Actuator with Moving Iron and Non-Salient Pole

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