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We study the propagation of Love wave in phononic crystal with piezoelectric waveguide layer. The first band gap of Love wave is calculated by plane wave expansion (PWE) method and finite element method (FEM). The influence of the waveguide layer on the band gap is analyzed. Numerical analysis shows that the thickness of the layer has a significant effect on the first band gap. The band gap can be...
In computational electromagnetics, parallel computing is more and more studied to deal with large-scale problems which are not able to execute by single PC. Many parallel computing example for electrostatic had been reported. But for electrostatic problems in which floating conductors exist, the realization of parallel is not reported. In the electrostatic model that contains floating conductors,...
In this paper, a new permanent magnet (PM) linear motor is proposed, in which both the magnets and armature windings are placed in the short mover, while the long stator consists of iron core only. Hence, this new PM linear motor can be called as primary permanent magnet linear motor, which exhibits the advantages of robust and simple mover, low cost, high efficiency, high power factor, and high thrust...
A low-speed double disks type permanent magnet synchronous machine is proposed. The electrical machinepsilas stator slot number is close to the rotor permanent magnet pole number and the statorpsilas tooth width is close to a pole distance. The coils that belong to each phase are concentrated and wound on consecutive teeth, so that the end winding is minimal and the phase windings do not overlap....
A new type of three-phase permanent magnet synchronous machine (PMSM) with modular stator structure is proposed. Its structure and principle is introduced. The machinepsilas teeth width is equal to polar pitch, its stator winding is concentrated winding, each phase winding is wound up continuously and the ends of windings are shorter then conventional machines. Therefore, the machinepsilas efficiency...
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