Design of a high thrust density moving magnet linear actuator with magnetic flux bridge

Ahmad, Zahoor; Hassan, Adnan; Khan, Faisal; Lazoğlu, İsmail

doi:10.1049/iet-epa.2019.0789

Cited by 18 publications

(27 citation statements)

References 32 publications

(51 reference statements)

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“…The dimensions of the parameter are compared with output parameter like thrust force experienced by the mover, mover mass and resonance frequency. Similar optimization technique is adopted in [3][4]27], where the response of the LOA is analyzed for different values of the parameter.…”

Section: Optimizationmentioning

confidence: 99%

“…Resonance frequency is increased by reducing the mass of the mover. The main obstacle in the design of LOA is the reduction of the mover mass [4]. Rising the value of the resonance frequency shows significant effect on output power of the actuator.…”

Section: Resonancementioning

confidence: 99%

“…This design produces very less electromagnetic force while volume of this topology is high. Design considered in [4] produce bidirectional thrust force and the stroke of oscillation is 14 mm. This design is moving magnet with axially magnetized PMs used.…”

Section: Comparison With Conventional Designs Of Loamentioning

confidence: 99%

“…Furthermore, in the conventional method, thrust force is decomposed into radial and tangential components, resulting in low efficiency of the machine [2][3]. LOA gives LOM of specific frequency that is equal to the frequency of single-phase input alternating supply [4]. Advantages of the LOA over conventional method are the adjustable stroke, high frequency oscillations, easily controllable, reduced number of mechanical parts and lower fabrication cost.…”

Section: Introductionmentioning

confidence: 99%

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Analysis and Design of a Novel Outer Mover Moving Magnet Linear Oscillating Actuator for a Refrigeration System

et al. 2021

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This article presents linear oscillating actuator (LOA) which generates bidirectional linear thrust force. Design topology of the proposed LOA contains an outer mover and an inner stator design. Two axially magnetized and tubular-shaped permanent magnets (PMs) are mounted on the mover. Due to the higher magnetic flux density of axially magnetized PMs in a specific direction, it generates higher thrust force than radially magnetized PMs. The proposed LOA operates on single-phase alternating source. All the design specifications of the LOA are optimized through finite element method (FEM) and optimum values of the design parameters are obtained. Output parameters such as the stroke length and thrust force are analyzed for multiple magnitudes of the input parameters such as current using FEM. Additionally, Other parameters like back emf, coil current and winding resistance are analyzed at resonance. Effect of motor constant is investigated toward both directions of the force, which show identical replication. Output parameters of the LOA are compared with already designed topologies of the LOA for refrigeration system. Proposed LOA demonstrates promising improvements in terms of motor constant and thrust force compared to the volume of the LOA. Moreover, proposed LOA is comparatively convenient to fabricate as well.

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Section: Optimizationmentioning

confidence: 99%

Section: Resonancementioning

confidence: 99%

Section: Comparison With Conventional Designs Of Loamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis and Design of a Novel Outer Mover Moving Magnet Linear Oscillating Actuator for a Refrigeration System

et al. 2021

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“…The efficiency of the system is relatively low due to the low efficiency of the induction motor and mechanical friction. To avoid this complex structure of the crankshaft mechanism, linear actuators are used [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Design and experimental analysis of high electromagnetic force density moving magnet linear actuator with end ferromagnetic poles

Akbar

Khan

Ahmad

et al. 2022

IET Electric Power Appl

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A Linear Oscillating Actuator (LOA) generates bi-directional electromagnetic (EM) force between two extreme points. A new topology of moving magnet LOA with axial magnetised PMs and a C-shaped stator core is proposed. On each side of the mover, two chamfered tubular-shaped core material parts are attached. All the design parameters, such as mover mass and EM force of the LOA, are optimised using parametric analysis via parametric sweep, and the optimum values of the parameters are chosen based on design and performance parameters. The LOA's performance is examined for various input loading values and at different oscillation region positions. For various values of time-dependent supply, the EM force's oscillating nature is analysed. The effect of resonance analysis on input current, stroke to current ratio, and efficiency are discussed. The proposed LOA is compared to current LOA topologies in terms of design structure and performance parameters. The FEM results are validated using a special experimental setup. The proposed LOA produces feasible results for the compressor in a refrigeration system.

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Quadrupole magnet design based on genetic multi-objective optimization

Diehl,

Tresckow,

Scholtissek

et al. 2023

Electr Eng

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This work suggests to optimize the geometry of a quadrupole magnet by means of a genetic algorithm adapted to solve multi-objective optimization problems. To that end, a non-domination sorting genetic algorithm known as NSGA-III is used. The optimization objectives are chosen such that a high magnetic field quality in the aperture of the magnet is guaranteed, while simultaneously the magnet design remains cost-efficient. The field quality is computed using a magnetostatic finite element model of the quadrupole, the results of which are post-processed and integrated into the optimization algorithm. An extensive analysis of the optimization results is performed, including Pareto front movements and identification of best designs.

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Design of a high thrust density moving magnet linear actuator with magnetic flux bridge

Cited by 18 publications

References 32 publications

Analysis and Design of a Novel Outer Mover Moving Magnet Linear Oscillating Actuator for a Refrigeration System

Analysis and Design of a Novel Outer Mover Moving Magnet Linear Oscillating Actuator for a Refrigeration System

Design and experimental analysis of high electromagnetic force density moving magnet linear actuator with end ferromagnetic poles

Quadrupole magnet design based on genetic multi-objective optimization

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