technical paper

Techpaper

Measurement, Simulation and Calculation Using Fourier Transformation of Iron Losses for Electrical Steel Sheets with Higher Frequency and Temperature Effects

Authors: N. Yogal, C. Lehrmann, M. Henke and H. Zheng Abstract: The losses present in electrical machines are of major concern in modern industrial applications, very high speed drives, aerospace applications and the automotive industry. This paper presents the magnetic characterization of non-oriented steel sheets used for manufacturing permanent magnet synchronous machines and synchronous reluctance machines when these […]

Posted in Motors,Synchronous Machines
Techpaper

Topology comparison of ferrite magnet synchronous machines with consideration of low inertia

Authors: Christian Heister and Markus Henke Abstract: In order to replace rare-earth magnets five different machine topologies are considered, designed and studied in detail. With a synchronous reluctance machine (SRM) a machine without magnets is included in this comparison. The improvement by the insertion of cheap ferrite magnets in a SRM is studied by designing […]

Posted in Motors,Synchronous Machines
Techpaper

Optimization in Tri-Axial Degaussing System Design

Authors: Vishal Modagekar, Department of Electrical Engineering Veermata Jijabai Technological Institute Matunga, Mumbai 400019, Abdul Karim Shaikh and Navdeep Singh Abstract: Contemporary ships, made of ferromagnetic materials, under the influence of Earth’s magnetic field produce an underwater magnetic anomaly. This anomaly, often called the magnetic signature, compromises the stealth and safety of the ship and needs to be minimized. […]

Posted in Magnets,Magnets Paper
Techpaper

Superconductivity for accelerators for medical applications

CIEMAT, in collaboration with HEPTech, EUCARD2, CDTI, GSI and EEN recently held a workshop on “Superconductivity for accelerators for medical applications”. In our everyday environment, compact superconducting accelerators produce short-life radionucleides to make diagnoses and proton and ion beams to treat tumours by hadrontherapy. Superconductivity has become a key technology of particle accelerators, helping their […]

Posted in Superconductivity Papers
Techpaper

Focussing Magnets for Drift Tube Linac

Authors: Vikas Teotia , Sanjay Malhotra , Kumud Singh , U.Mahapatra , S.Bhattacharya , G.P.Srivastava2 Shweta Roy , Piyush Jain , P. Singh and S. Kailas Abstract: A linear accelerator comprising of Radio frequency quadrupole (RFQ) and drift tube linac (DTL) is being developed at BARC. The Alvarez type CW DTL accelerates protons from energy […]

Posted in Focusing Magnets,Magnets,Magnets Paper
Techpaper

Electromagnetic design and development of a combined function horizontal and vertical dipole steerer magnet for medium energy beam transport line

Authors: Singh, Kumud (Bhabha Atomic Research Centre, Mumbai (India)); Itteera, Janvin (Bhabha Atomic Research Centre, Mumbai (India)); Ukarde, Priti (Bhabha Atomic Research Centre, Mumbai (India)); Teotia, Vikas(Bhabha Atomic Research Centre, Mumbai (India)); Kumar, Prashant (Bhabha Atomic Research Centre, Mumbai (India)); Malhotra, Sanjay (Bhabha Atomic Research Centre, Mumbai (India)); Taly, Y.K. (Bhabha Atomic Research Centre, Mumbai […]

Posted in Magnets,Magnets Paper
Techpaper

Design and development of permanent magnet based focusing lens for J-band klystron

Authors: Kumud Singh, Janvin Itteera and Priti Ukarde, all at Control Instrumentation Division, Bhabha Atomic research Centre, Mumbai, India Abstract: Applying permanent magnet technology to beam focusing in klystrons can reduce their power consumption and increase their reliability of operation. Electromagnetic design of the beam focusing elements, for high frequency travelling wave tubes, is very critical. The […]

Posted in Magnets,Magnets Paper,Permanent Magnets
Techpaper

MRI main field magnets

Authors: Johan Overweg, Philips Research, Hamburg, Germany Abstract: MRI scanners come in various shapes and they are based on several distinctly different technologies to create the static background field (B0). Whatever the shape and the technology, all B0 magnets for MRI have in common that they generate a strong field, which has, within narrow tolerances, […]

Posted in Magnets Paper,MRI / NMR Magnets
Techpaper

Modeling and optimal design of a linear induction motor for railway system (in French)

Authors: Gong Jinlin Ecole Centrale de Lille, France, 2012 Abstract: This thesis focuses on studying the performance of the linear induction motor using the method of finite element analysis, and the optimal design on a time-costly model. The finite element method is used to study the performance of the linear induction motor. Firstly, the 2D […]

Posted in Linear Motion,Motors
Techpaper

Development of a Methodology for Numerical Simulation of a DC ARC Discharge in a Liquid Dielectric

Authors: Christopher James Lewis Brigham Young University – Provo All Theses and Dissertations. Paper 2394 Abstract: The majority of literature regarding the numerical simulation of arc discharges in gaseous environments has used a plasma physics approach. Virtually all simulations treat the discharge as an idealized gaseous plasma, which can be described by temperature, pressure, and […]

Posted in Plasma Discharge
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