Analysis of a Novel Magnetization Pattern for 2-DoF Rotary-Linear Actuators

Meessen, K. J.; Paulides, Jjh Johannes; Lomonova, E. A.

doi:10.1109/tmag.2012.2199094

Cited by 22 publications

(14 citation statements)

References 10 publications

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“…The magnetic loading, B r , determines the specific force capability, as it is clear from (10). Further, it seems that scaling the surface-mount magnets produces an increase in airgap flux density.…”

Section: Fast Component Placement With Optimized Long-stroke Passimentioning

confidence: 93%

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Fast Component Placement with Optimized Long-Stroke Passive Gravity Compensation Integrated in a Cylindrical/Tubular PM Actuator

Paulides¹,

Encica²,

Meessen³

et al. 2013

Journal of international Conference on Electrical Machines and

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-Applications such as vibration isolation, gravity compensation, pick-and-place machines, etc., would benefit from (long-stroke) cylindrical/tubular permanent magnet (PM) actuators with integrated passive gravity compensation to minimize the power consumption. As an example, in component placing (pick-and-place) machines on printed circuit boards, passive devices allow the powerless counteraction of translator including nozzles or tooling bits. In these applications, an increasing demand is arising for high-speed actuation with high precision and bandwidth capability mainly due to the placement head being at the foundation of the motion chain, hence, a large mass of this device will result in high force/power requirements for the driving mechanism (i.e. an H-bridge with three linear permanent magnet motors placed in an H-configuration). This paper investigates a tubular actuator topology combined with passive gravity compensation. These two functionalities are separately introduced, where the combination is verified using comprehensive three dimensional (3D) finite element analyses.

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Section: Fast Component Placement With Optimized Long-stroke Passimentioning

confidence: 93%

“…For example, flux fringing, complex shapes, leakage, magnetic saturation, etc. are in general neglected although that significant progress is currently undertaken [10][11], which results in some small loss of accuracy. Therefore, numerical techniques are still…”

Section: Optimization Routinementioning

confidence: 99%

Fast Component Placement with Optimized Long-Stroke Passive Gravity Compensation Integrated in a Cylindrical/Tubular PM Actuator

Paulides¹,

Encica²,

Meessen³

et al. 2013

Journal of international Conference on Electrical Machines and

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show abstract

“…Moreover, in order to obtain the spatial distribution of the currents, the current densities of the two motion unit are, respectively, derived as the following form: (13) where A in , A on , B in , and B on are the coefficients obtained from Fourier series, P i and P o are the number of pole pairs of the rotary and linear motion unit, respectively. The Laplace's equation is used in the armature reaction magnetic field calculation, and the solution can be obtained by applying it for the geometries shown in Figure 5.…”

Section: Model Of Armature Reaction Currentmentioning

confidence: 99%

Analytical Calculation of the Magnetic Field Distribution in a Linear and Rotary Machine with an Orthogonally Arrayed Permanent Magnet

Lin

et al. 2017

Energies

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Abstract:In this paper, an analytical model is proposed to analyze and predict the characteristics of a double stator linear and rotary permanent magnet machine (DSLRPMM). In order to simplify the magnetic field calculation, the DSLRPMM is cut along the axial direction (z direction) and transferred into a planar one. Hence, an analytical model of the machine considered the orthogonal effect (OE) is proposed based on the combined solution of Maxwell's equation, conformal mapping, and equivalent magnetic circuit model (EMCM). The magnetic field distributions of the DSLRPMM are calculated with and without considering the OE, and some important electromagnetic parameters, including the back electromotive force (EMF), detent force, cogging torque, and output torque and thrust, are also predicted and compared to the 3D finite element analysis (FEA). The results show that the errors between the proposed analytical model and the 3D FEA results are less than 0.2% and even less than 0.1% for certain parameters, that is, the results obtained from the proposed analytical model agree well with that of the FEA. Moreover, the analyzed and predicted results are also verified by the experimental results on the prototype of the DSLRPMM.

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“…Although certain types of helical-motion motors have been developed over the years [13][14][15][16][17], many areas require further research. For example, modeling coupling effects is a significant challenge as it requires a solution considering the two degrees of mechanical freedom in the motion.…”

Section: Introductionmentioning

confidence: 99%

Mathematical Model of Two-Degree-of-Freedom Direct Drive Induction Motor Considering Coupling Effect

Si¹,

Xie²,

Han³

et al. 2017

Journal of Electrical Engineering and Technology

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-The two-degree-of-freedom direct drive induction motor, which is capable of linear, rotary and helical motion, has a wide application in special industry such as industrial robot arms. It is inevitable that the linear motion and rotary motion generate coupling effect on each other on account of the high integration. The analysis of this effect has great significance in the research of two-degreeof-freedom motors, which is also crucial to realize precision control of them. The coupling factor considering the coupling effect is proposed and addressed by 3D finite element method. Then the corrected mathematical model is presented by importing the coupling factor. The results from it are verified by 3D finite element model and prototype test, which validates the corrected mathematical model.

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Analysis of a Novel Magnetization Pattern for 2-DoF Rotary-Linear Actuators

Cited by 22 publications

References 10 publications

Fast Component Placement with Optimized Long-Stroke Passive Gravity Compensation Integrated in a Cylindrical/Tubular PM Actuator

Fast Component Placement with Optimized Long-Stroke Passive Gravity Compensation Integrated in a Cylindrical/Tubular PM Actuator

Analytical Calculation of the Magnetic Field Distribution in a Linear and Rotary Machine with an Orthogonally Arrayed Permanent Magnet

Mathematical Model of Two-Degree-of-Freedom Direct Drive Induction Motor Considering Coupling Effect

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