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The steel high-tension bolt of hexagon head is used in the engine of an automobile or a motorbike. In the manufacture process of these engines, the slack inspection of the bolt is very important.
In free space, unshielded large volume of a low permanent magnetic field (MF) generating system is necessary for use in such areas of magnetic measurements as: calibration of magnetometers, testing of materials, the ecological and medical effects, etc.
Antiferromagnetic spintronics has been recently investigated intensively in the view of realising a new device without suffering from the cross-talks between cells due to no net magnetic moment for example.
The efficiency of electromagnetic devices, such as e.g. transformers, is influenced by the losses of the applied soft magnetic material. Different structured materials are available but choosing the appropriate material is not instinctive. A performance factor is evaluated in this paper for frequencies up to 10 kHz. The studied application is a medium frequency transformer. A semi-physical iron loss...
Permanent magnet (PM) machines have been widely applied over the past few decades, such as renewable power generation, electric vehicles, domestic appliances, etc.
Mechanical gears, which are utilized in industrial applications for transmitting torque and altering the speed and direction of motion, inevitably suffer from many disadvantages, such as frictional loss, annoying noise and the need for regular lubrication and maintenance [1].
As one emerging bionic technique, the swarm robotics is a coordination and control strategy of multiple-robot systems, where a number of relatively simple robots are effectively integrated to complete sophisticated tasks while possessing characteristics of high robustness, flexibility, and low cost.
Due to high torque density, low torque ripple, high efficiency, excellent fault-tolerance capability and convenient manufacturing, fraction-slot concentrated windings (FSCWs) are desirable to be used in high performance permanent magnet (PM) synchronous machines.
When the interior permanent magnet (PM) machine operates under load condition, the armature current is ahead of the back electromotive force(back-EMF).
The Magnetocaloric Effect (MCE) is a topic of scientific interest due to its potential application in magnetic refrigeration systems which are called to be an energy efficient and environmental friendly alternative to the usual systems [1].
The present workdedicated to study the experimental validation of a numerical model based on La-Fe-Co-Si layered operating near room temperature. For this purpose, a numerical simulation based on the transient energy equations is proposed for modelling the heat exchange between the multilayer material and the carrier fluid in the regenerator bed with an applied magnetic field of 1.5 T. The main obtained...
As is known, Co-doped Ni-Mn-Z (Z = Ga, In, Sn) Heusler alloys exhibit unique multifunctional properties such as the magnetic shape memory effect, magnetic-field-induced strains, exchange bias effect, giant magnetoresistance and the magnetocaloric effect (MCE), which are promising for future technologies [1–3].
Vernier Permanent-magnet machine (VPMM) has been recognized in recent years as a substitute for permanent magnet synchronous machines (PMSM) in direct-drive applications such as wind turbine generators, motorcycles and electric vehicle/hybrid electric vehicle (EV/HEV) [1].
Magnetic nanostructures can be synthesized with different shapes such as disks, cylinders, rings and nanotubes Owing to their specific geometry and nanoscale size that have found distinctive applications due to their peculiar magnetic orderings.
this paper presents a hysteresis model for the mgb2 using a parameterized Preisach model, in which the weighting functions is determined only based on the M-H limiting loop. The results of simulation and experiment of accuracy of the parameterized Preisach model are reported for the case of iron-sheathed MgB2 superconducting cable samples with an external magnetic field perpendicular to its surface.
Single crystal Fe-Ga alloy with BCC crystal lattice exhibits a high degree of anisotropy in their mechanical characteristics because of a directional dependence in the atomic packing density.
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