Design Optimization of Electrodynamic Structure of Permanent Magnet Piston Mechanical Electric Engine

To meet the demand of multiple power requirements, and enhance power utilization, a new type of dual-element electricity unit is designed in this study, which is a permanent magnet piston mechanical electric engine. Based on the analysis method of traditional internal combustion engines and linear generators, the working principle of the engine and the magnetic field distribution in the electrodynamic structure are analyzed, the machine dynamics model and electrodynamics model of the engine are established, then the theoretical evaluation is additionally established using finite elements. Based on this, an optimization model is constructed with the electrodynamic shape dimension as the optimization variable, with the intention of growing the output power. The optimization of the engine electrodynamic shape is executed via the use of the finite aspect approach and the NLPQL optimization algorithm integrated. The results show that the optimized engine output electricity expanded to 8.40 w, which is 18.81% greater than before optimization. An experimental prototype is developed, and the output voltage of the prototype is measured to verify the precept and overall performance of the new structure.

Investigation of the characteristics of complex diffractive structures based on a combined approach

The paper is devoted to the study of electrodynamic structures, which include metal and dielectric elements. Simple elements are calculated using the method of integral equations. Their solution is determined by the collocation method and scattered electromagnetic fields. The finitedifference method is required for calculating the equation. For required scattering characteristics of complex electrodynamic structures the choice of diffraction elements is carried out within the framework of a multialternative optimization approach. The individual electrodynamic components are considered first. Then, on their basis, several promising variants of more complex subsystems are formed. It is necessary to apply training information on every stage of modeling. The example of the investigated electrodynamic structure is given. The definition of its characteristics is demonstrated.

Modeling of a sensitive element on a planar mushroom-shaped metamaterial for non-destructive testing and searching for inhomogeneities in technological media

A computer model and the results of a numerical experiment for a sensitive element on a planar mushroom-shaped metamaterial with cells of the “Maltese cross” type are presented. The proposed electrodynamic structure is shown to be applicable for nondestructive testing of geometric and electrophysical parameters of technological media, as well as searching for inhomogeneities in them. Resonant frequency shift and change of the attenuation coefficient value of the structure serve as informative parameters.

Electrodynamic computations using ANSYS Electronics Desktop software controlled by a program developed in the MATLAB environment

The paper considers methods of controlling the process of electrodynamic structure simulation in the ANSYS Electronics Desktop software (previously known as ANSYS HFSS). The MATLAB software was leading the computation. In order to transmit data to the ANSYS Electronics Desktop software we employed the Microsoft Component Object Model technology, which makes it possible to combine software components into executables. We used simulation of a planar aperture phased antenna array to show the possibilities and limitations in controlling the ANSYS HFSS software subsequently outputting data to a text file and importing the latter into MATLAB for further computation. We present simulation results for a phased antenna array generated by the ANSYS Electronics Desktop software according to the array model compiled in MATLAB