—In this study, the design and analysis of multi-layer fully pitched winding switched reluctance motor (MFP-SRM) for general use (submersible pump, electric vehicles, etc.) have been performed. It is seen that the multi-layer switched reluctance motor (SRM) has higher output power when compared to the single-layer SRM. In multi-layer SRM, the motors in the layers are electromagnetically independent of each other although they are identically the same motors with the same characteristics in terms of performance and geometry. Each layer of the MFP-SRM which is designed in this study consists of a 6/4 pole fully pitched SRM (FP-SRM) and these motors are magnetically independent of each other. In the MFP-SRM, which is designed as a double layer, there is a 15° phase difference between the rotor position angles and torque profile curves of each layer. With the phase difference that changes depending on the number of layers, each layer contributes to the total torque production of the profile, ensuring a smooth profile. According to the results of the 3D FEM analysis, it is seen that the proposed multi-layer motor structure has high starting torque and low torque ripple properties. In the analysis carried out in the range of 3–15 Amperes, the torque ripple of the traditional FP-SRM varies between 31.99% and 38.19%, while the torque ripple of the proposed MFP-SRM only varies between 3.23% and 7.11%.

Bu çalışmada 3B baskı teknolojisi kullanılarak otonom sualtı aracı (AUV) tasarımı ve uygulamasını gerçekleştirilmiştir. Dünyanın büyük bir bölümü denizler ve okyanuslardan oluşmaktadır. Bu gerçeğe rağmen sualtı araştırmaları kara ve hava ile karşılaştırıldığında geriden gelmektedir. Fakat son yıllarda dünyamızda ve ülkemizde sualtı araştırmaları önem kazanmaktadır. Özellikle sualtı maden, petrol ve doğalgaz yataklarına olan ilgiyle bu alandaki eksik daha çok hissedilmekte ve teknolojik çalışmalara ilgi daha da artmaktadır. Bu noktada en önemli ve en fazla ilgiyi sualtı robotları almaktadır. Yapılan bu çalışmada tüm bu ilgi ve ihtiyaç gereksinimleri ışığında, ilgili her alanda kullanılabilecek bir AUV prototipi gerçekleştirilmiştir. İmalatı gerçekleştirilen otonom sualtı aracı, hidrodinamik, sualtı sabit basınç ve dinamik basınç değişkenleri açısından değerlendirilerek kabiliyet yetenekleri arttırılırmıştır. Otonom sualtı robotunun kabuk tasarımı sualtında manevra yeteneği yüksek canlılar gözlemlenerek gerçekleştirilmiş ve HAD (Hesaplamalı Akışkanlar Dinamiği) analizleri yapılmıştır. Kabuk tasarımı ve imalatının gerçekleştirilmesinin ardından, tahrik sistemi ve elektronik donanımlar tamamlanarak otonom sualtı aracının fiziki yapısı tamamlanmıştır.

Today, with the decrease in fossil fuel reserves, interest in electric vehicles has grown. Undoubtedly, electric machines are one of the most important parts of electric vehicles. Studies on electrical machines directly affect vehicle performance. Since the electrical machine used is mounted on the vehicle, reducing the total weight without changing the output power will positively affect the overall performance of the vehicle. The windings used to create the magnetic field in electrical machines are made of copper. Electrical machinery manufacturers try to use completely different materials instead of copper or partially reduce its use. At this point, aluminum emerges as an attractive material for various manufacturers. This study analyzed the winding structure of a switched reluctance machine (SRM) proposed for an electric vehicle by using copper and aluminum at an equivalent resistance value, the results of which were compared. As a result of a 2D finite element analysis, it was observed that the machine’s output performance is largely kept when aluminum is used instead of copper for the winding. It was also observed that the aluminum total winding weight decreased by 43,40% compared to that of copper. Hoy, con la disminución de las reservas de combustibles fósiles, ha aumentado el interés por los vehículos eléctricos. Sin duda, las máquinas eléctricas son una de las partes más importantes de los vehículos eléctricos. Los estudios sobre máquinas eléctricas afectan directamente el rendimiento del vehículo. Dado que la máquina eléctrica utilizada está montada en el vehículo, la reducción del peso total sin cambiar la potencia de salida afecta positivamente el rendimiento general del vehículo. Los devanados utilizados para crear el campo magnético en las máquinas eléctricas están hechos de cobre. Los fabricantes de maquinaria eléctrica intentan utilizar materiales completamente diferentes en lugar del cobre o reducir su uso parcialmente. En este punto, el aluminio emerge como un material atractivo para varios fabricantes. En este estudio se analizó la estructura de bobinado de una máquina de reluctancia conmutada (SRM) propuesta para un vehículo eléctrico, utilizando cobre y aluminio con un valor de resistencia equivalente, cuyos resultados se compararon. Como resultado de un análisis de elementos finitos 2D, se observó que el rendimiento de salida de la máquina se mantiene en gran medida cuando se utiliza aluminio para bobinado en lugar de cobre. Se observó que el peso total del devanado de aluminio disminuyó en un 43,40 % en comparación con el de cobre.

Switched reluctance motors (SRMs) are highly advantageous electric motors for various industrial applications, particularly in electric vehicles (EVs), due to their winding-free rotor, magnet-free design, simplicity, and ease of manufacturing. The growing interest in axial flux SRMs (AFSRMs) is particularly noticeable, as axial flux electric motors with a flat shape and high aspect ratio have become commonly used in various industrial applications, including in-wheel motors for EVs. Structurally, AFSRMs significantly differ from radial flux SRMs (RFSRMs), but share the same electromagnetic operating principles. When compared to RFSRMs, AFSRMs generate higher torque per unit volume due to their more effective utilization of their air gap. In this study, the axial force on the rotor and torque ripple of a 6/4 pole fully pitched axial flux SRM (FP-AFSRM) were minimized by combining the advantages of “single-stator and single-rotor AFSRM” and “double-stator and single-rotor AFSRM” models. The proposed FP-AFSRM model, which has a “double-stator and single-rotor AFSRM” design and has the operating logic of a “single-stator and single-rotor AFSRM”, was analyzed using 3D finite element analysis. The results show that the torque ripple decreased (Δ % T_rip) between (−30.42) and (−41.14), and the axial force on the rotor decreased between 17.61% and 25.4%.