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In this paper, the cage-rotor induction motor and the matrix-rotor induction motor, which are driven at the same rotational speed, are analyzed using the three-dimensional finite element method, and the characteristics of these motors are compared with each other.
We report mode launch characteristics for Two-Mode Optical Fiber (TMF) under offset-launch condition. We confirmed that the power ratio of each mode for TMF under offset-launch condition can be evaluated by using FE-BPM.
In this study, we propose new type of a low-cost flexible tactile sensor which can detect 3-axial force and suitable for intelligent robot fingers. In order to propose innovative device, problems of previous studies about materials and structures were analyzed and fabrication process is used by the polymer micromachining technique. The designed tactile sensor is comprised of several micro force-sensing...
A novel 2-D magnetic resonant actuator is presented, and the influences of frequency and phase of the input voltage waveform on the trajectory of the armature are computed using the three-dimensional finite element method.
This paper presents a dynamic analysis method of a novel spherical resonant actuator using the three-dimensional finite element method (3-D FEM). In this method, the magnetic field equation is coupled with the electric circuit equation and the motion equation, and the mesh modification method using the Laplace equation is applied to the rotation of a spherical actuator.
With the recent rapid progress in handsets, the downsizing of their antennas is acquiring great importance. Generally, these antennas have been downsized by changing a configuration of the antennas or utilizing materials such as dielectric materials and magnetic materials. Until now, we have investigated a downsizing technique of antennas for handsets by utilizing magnetic materials. The topology...
In this research, we propose a new topology optimization method for the design of dielectric resonator antennas (DRAs) aiming to operate with enhanced bandwidths at multiple operational bands, using the finite difference-time domain (FDTD) method for electromagnetic analysis and the finite element method (FEM) for structural mechanics analysis. First, the concept of topology optimization is briefly...
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