Search results for: ELECTROMAGNETIC FINITE ELEMENT METHOD DYNAMIC MAGNETISATION OF BULK VOLUME EDDY CURRENTS MAGNETIC BARKHAUSEN EFFECT (MBN)

• Determination of magnetisation conditions in a Double-Core Barkhausen Noise measurement set-up

  Publication

  • M. Augustyniak
  • B. Augustyniak
  • L. Piotrowski
  • M. Chmielewski

  - JOURNAL OF NONDESTRUCTIVE EVALUATION - Year 2015

  The magnetic Barkhausen effect is useful forassessing 1D and 2D stress states of ferromagnetic steelobjects. However, its extension to technically importantmaterials, such as duplex anisotropic steels, remains challenging. The determination of magnetisation inside the studied object and the electromagnet for various geometries, materials and magnetisation angles is a key issue.Three-dimensional, dynamic finite element analysis...

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• Analysis of magnetic disturbances of air platform caused by induced magnetisation

  Publication

  • M. Wołoszyn

  - Year 2009

  Magnetometric systems installed on air platforms like airplanes or helicopters are equipped in compensators of magnetic disturbances. Time changes of the platform's position caused generation of magnetic disturbances. The permanent and induced magnetization of ferromagnetic elements and eddy currents induced in conducting parts of the platform are sources of these disturbances. The linear model of magnetic disturbances of platforms...

• Identification and non-integer order modelling of synchronous machines operating as generator

  Publication

  • S. Racewicz

  - Acta Energetica - Year 2012

  This paper presents an original mathematical model of a synchronous generator using derivatives of fractional order. In contrast to classical models composed of a large number of R-L ladders, it comprises half-order impedances, which enable the accurate description of the electromagnetic induction phenomena in a wide frequency range, while minimizing the order and number of model parameters. The proposed model takes into account...

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• Analysis of aircraft magnetic interference

  Publication

  • M. Wołoszyn

  - Year 2011

  The magnetometric method is used among other things on mobile platforms (planes, helicopters) in military systems and in geological research. Optically-pumped and SQUID magnetometers are used in magnetic systems on airplanes. To be able to attain the sensitivity of modern magnetometers in flight, it is important that maneuver-related magnetic interference effects be minimized. The mathematical model of an aircraft as a source of...

• Analysis of aircraft magnetic interference

  Publication

  • M. Wołoszyn

  - INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS - Year 2012

  The magnetometric method is used among other things on mobile platforms (planes, helicopters) in military systems and in geological research. Optically-pumped and SQUID magnetometers are used in magnetic systems on airplanes. To be able to attain the sensitivity of modern magnetometers in flight, it is important that maneuver-related magnetic interference effects be minimized. The mathematical model of an aircraft as a source of...

• Analysis of the possibility of creep damage detection in T24 heat resistant steel with the help of magnetic nondestestructive testing methods

  Publication

  • L. Piotrowski
  • M. Chmielewski
  • G. Golański
  • P. Wieczorek

  - ENGINEERING FAILURE ANALYSIS - Year 2019

  The paper presents the result of an analysis of applicability of various electromagnetic methods of nondestructive evaluation for creep damage detection in a novel heat resistant steel - T24 grade. Two sample sets, cut out from membrane wall tubes, were investigated – the as-delivered one and another exploited for 36,000 h in a power plant. There are described results of magnetic hysteresis loops B(H), Barkhausen noise (BN) and...

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• Finite Element Method Applied in Electromagnetic NDTE: - A Review

  Publication

  • M. Augustyniak
  • Z. Usarek

  - JOURNAL OF NONDESTRUCTIVE EVALUATION - Year 2016

  The paper contains an original comprehensive review of finite element analysis (FEA) applied by researchers to calibrate and improve existing and developing electromagnetic non-destructive testing and evaluation techniques, including but not limited to magnetic flux leakage (MFL), eddy current testing, electromagnetic-acoustic transducers (EMATs). Premium is put on the detection and modelling of magnetic field, as the vast majority...

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• Finite Element Method

  e-Learning Courses

  • B. Sobczyk
  • M. Malikan

  Item Name : Finite Element Method- Abaqus learning Field of study : Civil Engineering Faculty : Faculty of Civil and Environmental Engineering Education level : Second degree studies Form of studies : Full-time studies Year of studies : 1 Study semester : 2 Start of the semester : November 2021 Academic year of the course : 2021/2022 Form of classes : Lecture, Laboratory

• Disturbances of magnetic field of plane caused by eddy currents

  Publication

  • M. Wołoszyn

  - Przegląd Elektrotechniczny - Year 2010

  Results of the numerical analysis of the magnetic disturbances of a plane caused by eddy currents induced in conducting elements of the plane were presented in this paper. Magnetic disturbances of the object's model were carried out in Opera 3D.

• Disturbances of Earth magnetic field caused by eddy currents of airplane

  Publication

  • M. Wołoszyn

  - Year 2008

  The uniform magnetic field of the Earth in the surrounding of a mobile, metallic object undergoes deformation by eddy currents. The influence of the moving, conducting object on the Earth's total magnetic field depends on the object's shape, position and speed of the changes relative to the magnetic field vector of the Earth, as well as the electric conductivity and the relative magnetic permeability of the material. Disturbances...