Numerical Method of Simulation of Material Influences in MR Tomography

Steinbauer, Miloslav; Kubasek, Radek; Bartusek, and Karel

doi:10.2528/pierl07120605

Cited by 7 publications

(8 citation statements)

References 4 publications

(3 reference statements)

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“…With VFM Processing, composites containing carbon fiber and metal particles can be processed without arcing. It can be argued that numerical methods can be used to simulate results obtained in the cases mentioned [27][28][29][30][31][32][33].…”

Section: Resultsmentioning

confidence: 99%

Processing of Composites Using Variable and Fixed Frequency Microwave Facilities

Ku¹,

Yusaf²

2008

PIER B

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Abstract-This paper starts with the characteristics and advantages of microwaves processing. The shortcomings of fixed frequency, typically at 2.45 GHz were also mentioned. On account of this, the newly developed variable frequency microwave (VFM) fabrication was mentioned and adopted in place of the fixed frequency process. Two cases of fixed frequency microwave processing of materials were described; the characteristics and pros of each case was mentioned and commented. Two cases of processing materials using variable frequency microwave facility (VFMF) were mentioned; the advantages and limitations of each case were discussed. The microwave processing of materials provides improved mechanical, physical and electrical properties with much reduced processing time. Furthermore, variable frequency microwave processing is more superior to its fixed frequency counterpart except that the cost of the facilities of the former is much higher than the latter at this point in time but it appears that the price will drop in the coming ten years.

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Section: Resultsmentioning

confidence: 99%

Processing of Composites Using Variable and Fixed Frequency Microwave Facilities

Ku¹,

Yusaf²

2008

PIER B

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“…The Finite Element Method can be one of the best choices for providing realistic and precise model [30,31,[36][37][38]. Also, 3D-FEM has advantages over 2D in many applications modeling [32,33], for example the skew effect, end ring effect and some other practical issues such as motor length are missed in two dimensional analyses.…”

Section: Finite Element Modeling Of Srm Under Faulty and Healthy Opermentioning

confidence: 99%

Fem Analysis of Angular Misalignment Fault in SRM Magnetostatic Characteristics

Torkaman¹,

Afjei²

2010

PIER

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Abstract-This paper proposes magnetostatic analysis of Switched Reluctance Motor (SRM) under angular misalignment fault to evaluate the performance of the motor under different operating conditions. In this analysis three-dimensional finite element method (FEM) is used to simulate reliable and precise model by considering the complex motor magnetic geometry, end effects, axial fringing effects as well as nonlinear properties of the magnetic materials. The FE analysis is performed to obtain the static magnetic characteristics of SRM including flux density, flux linkages, terminal inductance and mutual inductance profile under different rotor positions for different varying degree of faults. Consequently, it presents assessing the features of mutual inductance in inactive phases to study the variations of diagnosis index. The results obtained present useful information regarding the detection of fault and its direction as well as the amount of angular misalignment fault in the motor. To the best knowledge of the authors, such an analysis has not been carried out previously.

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“…Over several decades, numerical methods in Electromagnetics have been the subject of extensive researches [1][2][3][4][5][6][7][8][9][10][11]. On the other hand, many problems in Electromagnetics can be modeled by integral and integro-differential equations (see [12][13][14][15][16][17][18][19][20][21]); for example, electric field integral equation (EFIE) and magnetic field integral equation (MFIE).…”

Section: Introductionmentioning

confidence: 99%

New Direct Method to Solve Nonlinear Volterra-Fredholm Integral and Integro-Differential Equations Using Operational Matrix With Block-Pulse Functions

Babolian¹,

Masouri²,

Hatamzadeh-Varmazyar³

2008

PIER B

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Abstract-A new and effective direct method to determine the numerical solution of specific nonlinear Volterra-Fredholm integral and integro-differential equations is proposed. The method is based on vector forms of block-pulse functions (BPFs). By using BPFs and its operational matrix of integration, an integral or integro-differential equation can be transformed to a nonlinear system of algebraic equations.Some numerical examples are provided to illustrate accuracy and computational efficiency of the method. Finally, the error evaluation of this method is presented. The benefits of this method are low cost of setting up the equations without applying any projection method such as Galerkin, collocation, . . . . Also, the nonlinear system of algebraic equations is sparse.

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Numerical Method of Simulation of Material Influences in MR Tomography

Cited by 7 publications

References 4 publications

Processing of Composites Using Variable and Fixed Frequency Microwave Facilities

Processing of Composites Using Variable and Fixed Frequency Microwave Facilities

Fem Analysis of Angular Misalignment Fault in SRM Magnetostatic Characteristics

New Direct Method to Solve Nonlinear Volterra-Fredholm Integral and Integro-Differential Equations Using Operational Matrix With Block-Pulse Functions

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