Bilgilendirme: Sürüm Güncellemesi ve versiyon yükseltmesi nedeniyle, geçici süreyle zaman zaman kesintiler yaşanabilir ve veri içeriğinde değişkenlikler gözlemlenebilir. Göstereceğiniz anlayış için teşekkür ederiz.

Elektrik Elektronik Mühendisliği Bölümü

Permanent URI for this communityhttps://hdl.handle.net/20.500.12416/410

Browse

Browsing Elektrik Elektronik Mühendisliği Bölümü by Author "Arslan, S."

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • Thumbnail Image
    Article
    Citation - Scopus: 6
    Design of Frameless Gimbal Motor for Uav Applications
    (International Organization on 'Technical and Physical Problems of Engineering', 2022) Arslan, S.; İskender, İres; Iskender, I.; Arslan, Serdar; 133746; Elektrik-Elektronik Mühendisliği; Bilgisayar Mühendisliği; 06.03. Elektrik-Elektronik Mühendisliği; 06.01. Bilgisayar Mühendisliği; 06. Mühendislik Fakültesi; 01. Çankaya Üniversitesi
    Recently, application areas of the Unmanned Aerial Vehicle (UAV) systems have started to expand very rapidly due to the fact that offering more effective, economical, reliable and safe solutions compared to manned air platforms, satellites and/or various ground platforms. However, desire to develop higher performance, resourceful, lighter, small and low powered payload make the gimbal platforms mandatory part of the UAVs in a short time and their role is getting increased day by day. In parallel with the increasing demand for precise stabilization, robustness, lightness and agility in gimbal systems, it has become an important trend to use more-electric (ME) customed systems instead of traditional market products. The electric motors that control the speed and position of the gimbal system are simply referred to as gimbal motors. Related design study focuses on designing direct-drive in-runner frameless gimbal motor with the following features; 8.5 VAC line voltages, 24-slot/28-pole combination, 60 rpm, 80 mN.m. Permanent magnet synchronous motor topology is determined to offer higher torque density, higher precision and fast response required for gimbal platforms. The selecting criteria of dimensions, performance parameters, materials, machine type with rotor structures and motor duty cycle are also explained. The gimbal motor is performed analytically in Ansys RMxprt with parametric assignments, statistically and sensitively tuned in Maxwell 2D and optimized in Maxwell 3D by finite element method (FEM) optimetric convergence approach with magnetostatic and transient solutions to get the final machine shape. This study is currently part of the gimbal system to be produced for medium sized surveillance UAV. Since the gimbal motor has been prototyped, all dimensions given are valid. © 2022, International Organization on 'Technical and Physical Problems of Engineering'. All rights reserved.
  • Thumbnail Image
    Conference Object
    Citation - Scopus: 2
    Optimal Design of an In-Runner Direct-Drive Synchronous Permanent Magnet Starter/Generator for Uavs
    (Institute of Electrical and Electronics Engineers Inc., 2022) Iskender, I.; Navruz, T.S.; Arslan, S.; 133746; 06.03. Elektrik-Elektronik Mühendisliği; 06.01. Bilgisayar Mühendisliği; 06. Mühendislik Fakültesi; 01. Çankaya Üniversitesi
    The aim of improving efficiency, safety, and reliability as part of more-electric-aircraft initiatives is mediating the rapid development of aerospace systems. In addition, the increasing need for leadership in the sociomilitary-economic area brings the focus of studies on unmanned aerial vehicles in aviation. However, developments in power electronics and control algorithms, permanent magnets, high-speed transmission elements, and iron core material technologies reveal the need for using Starter/Generator structures in hybrid propulsion systems. This paper explores the optimum design of an In-runner Synchronous Permanent Magnet Starter/Generator with specifications of 1 kW-4500 rpm for motor mode and 1.25 kW-5500 rpm for generator mode, especially for small UAVs equipped with a piston engine. Thus, charging the battery packs and the required thrust can be provided with higher efficiency. The preliminary dimensions are obtained analytically. The design issues of materials and topologies are discussed. The novel model is optimised in Ansys Maxwell 2D based on finite element analyses. Dynamic and static simulations are performed with the optimetric sensitivity method, and the efficiency study is carried out in Maxwell 3D. The data obtained as a result of analytical and numerical calculations are verified. © 2022 IEEE.