Building a CAD system for educational purpose based only on a mesh tool and a finite elements solver

Lefèvre, Yvan; Fontchastagner, Julien; Messine, Frédéric

doi:10.1109/tmag.2006.871435

Cited by 7 publications

(7 citation statements)

References 5 publications

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“…FEM calculation is then executed for each mesh to yield performance values such as magnetic density, torque, etc. [17][18][19][20][21][22][23][24][25][26]. An example is shown in Figure 2.…”

Section: Finite Element Methods Of Hmpp In Cogging Torque Analysismentioning

confidence: 99%

A Novel Cogging Torque Simulation Method for Permanent-Magnet Synchronous Machines

2011

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Abstract:Cogging torque exists between rotor mounted permanent magnets and stator teeth due to magnetic attraction and this is an undesired phenomenon which produces output ripple, vibration and noise in machines. The purpose of this paper is to study the existence and effects of cogging torque, and to present a novel, rapid, half magnet pole pair technique for forecasting and evaluating cogging torque. The technique uses the finite element method as well as Matlab research and development oriented software tools to reduce numerous computing jobs and simulation time. An example of a rotor-skewed structure used to reduce cogging torque of permanent magnet synchronous machines is evaluated and compared with a conventional analysis method for the same motor to verify the effectiveness of the proposed approach. The novel method is proved valuable and suitable for large-capacity machine design.

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Section: Finite Element Methods Of Hmpp In Cogging Torque Analysismentioning

confidence: 99%

A Novel Cogging Torque Simulation Method for Permanent-Magnet Synchronous Machines

2011

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“…the selection of the ERM optimal design under the certain size. The IBBA are based on the interval analysis and the combinatorial methods [4][5][6][7][8]. However, it is not always possible to find the global optimal design solution [6] and to predict the ERM design with the desired parameters and characteristics.…”

Section: Introductionmentioning

confidence: 99%

New Method of Optimal Design of Electrical Rotating Machines

Исмагилов

Vavilov

Ayguzina

2017

IJEECS

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The article presents a new method of the optimal design of the electrical rotating machine based on the genetic algorithm which can used for all electrical rotating machine types and to predict their properties. The new method for optimal design allows obtaining the new electrical rotating machine which mass is lower than mass of the conventional electrical rotating machine by two times. As the result of optimal electrical rotating machine design by using the proposed method, the value of the rotor active length is lower by 2.37 times, and the current density is higher by 1.7 times in comparison with the initial electrical rotating machine. The losses are increased by only 25% (power, rotation and materials frequency of both electrical rotating machine are the same). It was also found that the optimality of a particular design scheme, including the rotor magnetic system or the groove type depends on the complex of sizes. Moreover, the change of this complex leads to a change in the optimum design scheme.

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“…In order to simplify the resolution of the direct problem of design by using a finite-element method, we have proposed a numerical tool, named NUMT, which can automatically mesh, draw, and compute the torque of an electrical machine only defined by its parameters of design, [8]. Thus, the computation of the electromagnetic torque can be performed without the drawing of the motor.…”

Section: Introductionmentioning

confidence: 99%

“…The purpose of this paper is to extend the algorithm IBBA [3], [11] by inserting some steps of NUMT [8] in order to solve, in another more accurate way, the inverse problem of design of electrical rotating machines; see [4] for a preliminary work on this subject. In Section II, we review the rational methodology published in [3] which deals about the association of combinatorial analytical models and IBBA.…”

Section: Introductionmentioning

confidence: 99%

“…In Section II, we review the rational methodology published in [3] which deals about the association of combinatorial analytical models and IBBA. We then present, in Section III, the numerical tool NUMT [8] which makes it possible to solve automatically the direct problem of design by using a numerical model. Section IV is dedicated to the new methodology combining IBBA and NUMT.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design of Electrical Rotating Machines by Associating Deterministic Global Optimization Algorithm With Combinatorial Analytical and Numerical Models

Fontchastagner¹,

Messine

Lefèvre³

2007

IEEE Trans. Magn.

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This paper presents a new methodology of design of electrical rotating machines. The methodology is an extension of previous works of the second author. Indeed, associating combinatorial analytical models with exact global optimization algorithms leads to rational solutions of predesign. These solutions need to be validated by a numerical tool (using a finite-element method) before the expansive phase of hand-making a prototype. Such an automatic numerical tool for computing some characteristic values, such as the torque, was previously developed. The idea of this paper is to extend the exact global optimization algorithm by inserting the direct use of this automatic numerical tool. This new methodology makes it possible to solve design problems more rationally. Some numerical examples validate the usefulness of this new approach. Index Terms-Analytical model, deterministic global optimization, finite-element methods, interval branch and bound algorithm, inverse problem of design, numerical model.

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Building a CAD system for educational purpose based only on a mesh tool and a finite elements solver

Cited by 7 publications

References 5 publications

A Novel Cogging Torque Simulation Method for Permanent-Magnet Synchronous Machines

A Novel Cogging Torque Simulation Method for Permanent-Magnet Synchronous Machines

New Method of Optimal Design of Electrical Rotating Machines

Design of Electrical Rotating Machines by Associating Deterministic Global Optimization Algorithm With Combinatorial Analytical and Numerical Models

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