Results 221 to 230 of about 519 (253)
Some of the next articles are maybe not open access.
Cogging Force Reduction in Tubular Permanent Magnet Actuators
2007 IEEE International Electric Machines & Drives Conference, 2007This paper describes a method to reduce cogging force in the design of a tubular slotted PM actuator for industrial applications. A comprehensive analysis is undertaken by considering a pre-established design in coherence with extended 2D finite element analysis, which enables the determination of the cogging force associated both with the stator ...
Janssen, J.L.G. +3 more
openaire +2 more sources
Research of the Cogging Force in TPMLSM with Unequal Pole-Pitch
2016 IEEE Vehicle Power and Propulsion Conference (VPPC), 2016Cogging force is one of the main factors causing the thrust fluctuation of permanent magnet synchronous linear motor, in order to effectively suppress the influence of cogging force on the thrust fluctuations, cogging force is analytical analyzed based on energy method and Fourier decomposition method ,this paper proposes unequal pole-pitch method of ...
Ning-Ning Ren +2 more
openaire +1 more source
Cogging-force-reduction techniques for linear permanent-magnet machines
IEE Proceedings - Electric Power Applications, 2005The paper describes two techniques for reducing the cogging force associated with the finite length of the ferromagnetic armature core of a tubular permanent-magnet machine. Analytical expressions for predicting the cogging force which is associated with armature cores having skewed or stepped end faces are established, and a cogging-force-minimisation
J. Wang, M. Inoue, Y. Amara, D. Howe
openaire +1 more source
2016 Eleventh International Conference on Ecological Vehicles and Renewable Energies (EVER), 2016
A novel linear-rotary permanent magnet actuator (LRPMA) is proposed in this paper, in which ferromagnetic poles and PM poles are mounted on the mover surface. A 3D analytical model without considering the stator slotting effect is presented for calculating no-load air-gap magnetic field, which transfers the tubular mover of the proposed LRPMA into a ...
Kaikai Guo +5 more
openaire +1 more source
A novel linear-rotary permanent magnet actuator (LRPMA) is proposed in this paper, in which ferromagnetic poles and PM poles are mounted on the mover surface. A 3D analytical model without considering the stator slotting effect is presented for calculating no-load air-gap magnetic field, which transfers the tubular mover of the proposed LRPMA into a ...
Kaikai Guo +5 more
openaire +1 more source
Reduction of cogging force in PM linear motors by pole-shifting
IEE Proceedings - Electric Power Applications, 2005A technique is described to reduce cogging force in permanent-magnet linear motors due to the interaction between the permanent magnets (PMs) and the stator teeth. It consists of a proper shift of the PMs so that this effect is compensated for among the poles of the machine.
BIANCHI, NICOLA +2 more
openaire +2 more sources
A linear hybrid switched reluctance motor with zero cogging force
2015 IEEE Magnetics Conference (INTERMAG), 2015Linear permanent magnet motors (LPMM) and linear switched reluctance motors (LSRMs) are suitable for translational, direct-drive position control applications. Several linear permanent magnet motors (LPMMs) have been investigated [1-3]. However, there often exists unavoidable cogging forces from LPMMs that require additional control algorithms to ...
Y. Zou, S. Or, J. Pan
openaire +1 more source
Cogging force analysis of linear motor arrays driving the Thirty Meter Telescope
2011 IEEE 54th International Midwest Symposium on Circuits and Systems (MWSCAS), 2011A finite element analysis of the cogging force generated by an array of linear synchronous motors moving on a curvilinear track is presented. This system is under consideration as the driving system for the two main axes of the Thirty Meter Telescope that will be built in Mauna Kea, Hawaii.
Gilardi, Gabriele +3 more
openaire +2 more sources
IFAC Proceedings Volumes, 2001
In laser welding applications, either the laser beam or the workpiece has to be manipulated such that the seam to weld can be tracked. Gantry type of robots driven by linear direct drive synchronous motors can be applied as manipulator(s). In direct drive permanent magnet motor systems, disturbances due to cogging forces are directly noticeable at the ...
Schrijver, E., van Dijk, Johannes
openaire +1 more source
In laser welding applications, either the laser beam or the workpiece has to be manipulated such that the seam to weld can be tracked. Gantry type of robots driven by linear direct drive synchronous motors can be applied as manipulator(s). In direct drive permanent magnet motor systems, disturbances due to cogging forces are directly noticeable at the ...
Schrijver, E., van Dijk, Johannes
openaire +1 more source
Effect of Cogging Force on Linear Haptic Motor
Theoretical and Natural ScienceAs consumer electronics evolve, precise tactile feedback via linear haptic motors (LHMs) has become crucial for enhancing user interaction in devices such as smartphones and gaming controllers.This study investigates the effect of cogging force on LHM performance.A theoretical model is developed using the Maxwell stress tensor to calculate ...
openaire +1 more source
Cogging force mitigation of tubular permanent magnet machines with magnet dividing
2007 International Conference on Electrical Machines and Systems (ICEMS), 2007Cogging force produced in a tubular permanent magnet machines due to the interaction between the permanent magnets and the stator teeth causes an undesired vibration and noise. In applications such as robotics there is a need for precise position control and for this purpose force pulsation should be minimized.
Mahdi A. Shabani +2 more
openaire +1 more source