Since traction motors for electric vehicles require a variety of features to be used simultaneously, research on the design optimization of permanent magnet synchronous motors (PMSMs) has been increasing. To apply design optimization in the industrial field, it must be accurate, simple, and the design time should be minimized. …
Abstract. Since traction motors for electric vehicles require a variety of features to be used simultaneously, research on the design optimization of permanent …
Example of magnetic-based topology optimization for the rotor core of an interior. permanent magnet synchronous machine, adapted from [77]. Iron regions adjacent to air pockets.
3 | TOPOLOGY OPTIMIZATION OF A MAGNETIC CIRCUIT where B r is the r-component of the magnetic flux density, N 0 is the number of turns of the coil, and A the cross-section area of the coil. In the present model, the electromagnetic problem is solved using the Magnetic Fields interface. The iron yoke is made of a soft iron with a specified B-H …
In this paper, optimization design of a toroidal core for magnetic energy harvesting around power lines is proposed and presented. The main idea is to determine the inner radius of the toroidal core needed to generate maximum induced voltage by considering the saturation effect.
Note, that the topology obtained from the optimization using an ideal permanent magnetic material, for a realistic hard magnetic material with (chi = 0.2) produces a magnetic field that is only ...
3 Citations. 1 Altmetric. Metrics. Abstract. The main idea of Less is more approach (LIMA) is using as fewer as possible ingredients to provide the best possible …
Modeling magnetic sensors as spatial filters is a powerful tool to analyze the effects of integration over a sensing region [Lima et al., 2002; Roth and Wikswo, 1990]. …
Magnetic coupler optimization uses distinct conductors to increase coil performance by lowering loss and modifying coil physical forms. Making coils with a superconductor (Sc) as the material is the most popular method. However, the practical feasibility is limited to superconductivity features of materials like Bi-2223, Bi-2212, …
2.1 Motor Topology and Basic Parameters. The new type of combined magnetic pole negative-salient permanent magnet motor is proposed in this paper adopts the 8-pole/48-slot topology, as shown in Fig. 1a. The key parameters of the motor are given in Table 1.Figure 1b shows the rotor structure of the traditional IPMM. The permanent …
1 Introduction Magnetic hyperthermia and related heat-assisted healing treatments are nowadays one of the most widely studied areas of application of magnetic nanoparticles (NPs). 1–7 Precision nanomedicine is a modern therapeutic practice, mainly developed for the treatment of cancer, and it exploits nanotechnology to support and favour treatments …
The design of SMES magnet in search of minimum static and dynamic heat load of superconducting wire/cable is a multi-variable nonlinear constrained optimization problem. The charging and discharging rate of superconducting coil is determined by the duty cycle of DC–DC chopper. When duty cycle is 0.5, the coil is in free-wheeling or hold …
Topology and shape optimization are still rarely applied to problems in electromagnetic design due to the computational complexity and limited commercial tooling, even though components such as electrical motors, magnetic springs or magnetic bearings could benefit from it, either to improve performance (reducing torque ripple and losses …
Synchronous homopolar motors have no permanent magnets and their excitation winding is fixed at their stator. However, they can be a good alternative to induction and permanent magnet motors in traction applications requiring a wide constant power speed range. They provide an excitation flux control and a highly reliable …
There are few reports using the gear ratio of the magnetic gear as an optimization target. In this paper, the gear ratio is taken as an optimization target of the MG, to quickly find a structural design with a high gear ratio and high torque density under a fixed outer dimension. In the optimization process, to prevent the torque fluctuation ...
Our ultimate goal is a topology optimization for a permanent-magnet (PM) machine, while including material uncertainties. The uncertainties in the output data are, e.g., due to measurement errors in the non-/linear material laws. In the resulting stochastic forward problem, these uncertainties are stochastically modeled by random fields. The …
The consistency of magnetic flux density of damping gap (CMDG) represents the balancing magnetic flux density in each damping gap of magnetorheological (MR) dampers. It can make influences on the performances of MR dampers and the accuracy of relevant objective functions. In order to improve the mechanical performances of the MR damper with a two …
Abstract. Additive manufacturing, no longer reserved exclusively for prototyping components, can create parts with complex geometries and locally tailored …
Here, we present a complete toolkit consisting of multiobjective topology optimization (for design synthesis) and multimaterial drop-on-demand three-dimensional for fabricating complex actuators (>10 6 design dimensions). The actuators consist of soft and rigid polymers and a magnetic nanoparticle/polymer composite that responds to a ...
The temperature rise in wireless charging systems (WCS) limits their reliability and material lifespan, hindering the development of wireless charging technology. This paper proposes a thermal design and optimization method for the magnetic coupler in wireless charging systems. The proposed method uses electromagnetic-thermal …
This work reports the study of tetracycline adsorption on magnetic graphene oxide (GO·Fe 3 O 4) from theoretical and experimental approaches.From the theoretical side, the combination of ab initio and Density Functional Theory (DFT) presents the structural and electronic properties of magnetic nanoadsorbent and tetracycline, …
Open access. Published: 21 January 2022. A topology optimization algorithm for magnetic structures based on a hybrid FEM–BEM method utilizing the …
Although the optimization criteria are the same for a given electrica l load and magnetic Machines 2022, 10, 1178 6 of 20 flux density, the optimal value of
This paper presents a novel magnetic-geared permanent magnet (MGPM) machine with dual-layer PM excitations, referred as dual-layer MGPM (DL-MGPM) …
Magnetic tweezers are a powerful tool to manipulate single DNA or RNA molecules and to study nucleic acid-protein interactions in real time. Here, we have modeled the magnetic fields of permanent magnets …
Single magnet optimization demonstrates that there is an ideal size for permanent magnets (i.e., length-radius) and electromagnets (i.e. length-radius and coil-core). Three different sizes of ...
The most common plastic-to-fuels technology provides a good example in this field. •. The main goal of plastic pyrolysis technology has been shifted to produce paraffinic naphtha or plastic monomers. •. Plastic pyrolysis technology has the potential to create a plastics' circular economy in the coming years.
Topology optimization of permanent magnet systems consisting of permanent magnets, high permeability iron and air is presented. An implementation of topology optimization for magnetostatics is discussed and three examples are considered. The Halbach cylinder is topology optimized with iron and an increase of 15% in magnetic …
The shaping of the magnetic structures for electrical machines can be generally categorized into two groups: (1) conventional shaping and optimization techniques, and (2) topology optimization. For the conventional shaping techniques, mathematical models and sensitivity analysis are typically used on a pre-selected …
Objective To compare intensity reduction plans for liver cancer with or without a magnetic field and optimize field and subfield numbers in the intensity-modulated radiotherapy (IMRT) plans designed for liver masses in different regions. Methods This retrospective study included 62 patients who received radiotherapy for liver cancer at …