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Papers by M. Agha-mirsalim

Research paper thumbnail of DESIGN, PROTOTYPING AND ANALYSIS OF A LOW-COST DISK PERMANENT MAGNET GENERATOR WITH RECTANGULAR FLAT-SHAPED MAGNETS

This paper presents a new structure to overcome so me of the difficulties in axial-flux permanent... more This paper presents a new structure to overcome so me of the difficulties in axial-flux permanent magnet surface-mounted generators. In the new structure with a non-ferromagnetic holder, the centrifugal force acting on permanent m agnets is counteracted. Hence, an increase in the rotation speed and the output power of the gene rator is feasible. The new design is inexpensive and

Research paper thumbnail of Rotational electromagnetic-field-aided false twisting of metallic filaments

Journal of the Textile Institute, 2010

In the present research, a novel method based on previous work is improved to exert false twist o... more In the present research, a novel method based on previous work is improved to exert false twist of metallic filaments on the basis of a rotational electromagnetic field. Primarily, the effect of the rotational force of a single-phase induction stator on current-carrying conductive filaments is studied. Thereafter, the prototype of the proposed system is designed and tested. The analytical and experimental results prove the capability of the method in false twisting of conductive (metallic) filaments. The proposed method can be employed as a false-twisting box for polymeric conductive and magnetic filaments.

Research paper thumbnail of Design, Prototyping, and Analysis of a Low Cost Axial-Flux Coreless Permanent-Magnet Generator

IEEE Transactions on Magnetics, 2000

... Permanent-Magnet Generator Seyed Mohsen Hosseini 1 , Mojtaba Agha-Mirsalim 1;2 , and Mehran M... more ... Permanent-Magnet Generator Seyed Mohsen Hosseini 1 , Mojtaba Agha-Mirsalim 1;2 , and Mehran Mirzaei 1 ... Corre-sponding author: SM Hosseini (e-mail: m_hosseini@aut. ac.ir). Seyed Mohsen Hosseini was born in Tehran, Iran, in 1982. ...

Research paper thumbnail of Interlacing metallic filaments by rotational permanent magnetic field

Fibers and Polymers, 2008

In this paper the feasibility of interlacing current-carrying metallic (conductive) filaments in ... more In this paper the feasibility of interlacing current-carrying metallic (conductive) filaments in a rotational permanent magnetic field is investigated. The work contains two parts. Firstly, the effect of magnetic forces on current-carrying metallic filaments in a rotational permanent magnetic field is theoretically studied. In addition, the behavior of a filament under magnetic forces is mechanically analyzed. Secondly, in accordance with the theoretical analysis, a prototype of the proposed system is designed and tested. The experimental results prove the capability of the method to interlace metallic filaments. The proposed method can be employed as a kernel in order to reach a frictionless twister system for other conductive filaments.

Research paper thumbnail of Electrical and Mechanical Modeling of Current Carrying Metallic Filaments in Rotational Magnetic Field

ABSTRACT In recent years, applications of conductive fibers in textile products are widely develo... more ABSTRACT In recent years, applications of conductive fibers in textile products are widely developed especially in E-textile and smart clothing .considering the properties of conductive fibers ,the conductive yarn production systems is going to evaluated. In this paper the novel method to interlacing and false twisting the conductive filament on the base of rotational magnetic field is studied and examined. At first the rotational torque of single phase induction motor is analyzed. Then by using conductive filaments instead of induction rotor the force on filaments is studied and modeled by using finite element method. At last, in accordance with the modeling and theoretical analysis, a prototype of the proposed system is designed and tested. The experimental results prove the capability of the method to false twisting conductive filaments. The proposed method can be employed as a kernel to reach a texturing system for conductive filaments.

Research paper thumbnail of Equivalent Circuit of Linear Induction Motor Based on Coupled-Circuit Model and Optimization Design using Imperialist Competitive Algorithm

—in this paper, a coupled circuit model of Linear Induction Motor based on electromagnetic field ... more —in this paper, a coupled circuit model of Linear
Induction Motor based on electromagnetic field analysis is
presented. Also, the motor parameters are calculated employing
the concept of winding function. The end effect automatically
appears in the equivalent circuit model. Moreover, an optimization
procedure of Linear Induction Motor is employed for improving
performance. Hence, we define three variables, including height of
slot, width of slot and thickness of the secondary sheet to create
initial objective function. Afterward, employing Response Surface
Methodology and Imperialist Competitive Algorithm, the objective
function is optimized for improving the Linear Induction Motor
performance. Finally, the Finite Element Method is employed to
verify the results of the optimization. The results show
improvement in the performance of the Linear Induction Motor.

Research paper thumbnail of DESIGN, PROTOTYPING AND ANALYSIS OF A LOW-COST DISK PERMANENT MAGNET GENERATOR WITH RECTANGULAR FLAT-SHAPED MAGNETS

This paper presents a new structure to overcome so me of the difficulties in axial-flux permanent... more This paper presents a new structure to overcome so me of the difficulties in axial-flux permanent magnet surface-mounted generators. In the new structure with a non-ferromagnetic holder, the centrifugal force acting on permanent m agnets is counteracted. Hence, an increase in the rotation speed and the output power of the gene rator is feasible. The new design is inexpensive and

Research paper thumbnail of Rotational electromagnetic-field-aided false twisting of metallic filaments

Journal of the Textile Institute, 2010

In the present research, a novel method based on previous work is improved to exert false twist o... more In the present research, a novel method based on previous work is improved to exert false twist of metallic filaments on the basis of a rotational electromagnetic field. Primarily, the effect of the rotational force of a single-phase induction stator on current-carrying conductive filaments is studied. Thereafter, the prototype of the proposed system is designed and tested. The analytical and experimental results prove the capability of the method in false twisting of conductive (metallic) filaments. The proposed method can be employed as a false-twisting box for polymeric conductive and magnetic filaments.

Research paper thumbnail of Design, Prototyping, and Analysis of a Low Cost Axial-Flux Coreless Permanent-Magnet Generator

IEEE Transactions on Magnetics, 2000

... Permanent-Magnet Generator Seyed Mohsen Hosseini 1 , Mojtaba Agha-Mirsalim 1;2 , and Mehran M... more ... Permanent-Magnet Generator Seyed Mohsen Hosseini 1 , Mojtaba Agha-Mirsalim 1;2 , and Mehran Mirzaei 1 ... Corre-sponding author: SM Hosseini (e-mail: m_hosseini@aut. ac.ir). Seyed Mohsen Hosseini was born in Tehran, Iran, in 1982. ...

Research paper thumbnail of Interlacing metallic filaments by rotational permanent magnetic field

Fibers and Polymers, 2008

In this paper the feasibility of interlacing current-carrying metallic (conductive) filaments in ... more In this paper the feasibility of interlacing current-carrying metallic (conductive) filaments in a rotational permanent magnetic field is investigated. The work contains two parts. Firstly, the effect of magnetic forces on current-carrying metallic filaments in a rotational permanent magnetic field is theoretically studied. In addition, the behavior of a filament under magnetic forces is mechanically analyzed. Secondly, in accordance with the theoretical analysis, a prototype of the proposed system is designed and tested. The experimental results prove the capability of the method to interlace metallic filaments. The proposed method can be employed as a kernel in order to reach a frictionless twister system for other conductive filaments.

Research paper thumbnail of Electrical and Mechanical Modeling of Current Carrying Metallic Filaments in Rotational Magnetic Field

ABSTRACT In recent years, applications of conductive fibers in textile products are widely develo... more ABSTRACT In recent years, applications of conductive fibers in textile products are widely developed especially in E-textile and smart clothing .considering the properties of conductive fibers ,the conductive yarn production systems is going to evaluated. In this paper the novel method to interlacing and false twisting the conductive filament on the base of rotational magnetic field is studied and examined. At first the rotational torque of single phase induction motor is analyzed. Then by using conductive filaments instead of induction rotor the force on filaments is studied and modeled by using finite element method. At last, in accordance with the modeling and theoretical analysis, a prototype of the proposed system is designed and tested. The experimental results prove the capability of the method to false twisting conductive filaments. The proposed method can be employed as a kernel to reach a texturing system for conductive filaments.

Research paper thumbnail of Equivalent Circuit of Linear Induction Motor Based on Coupled-Circuit Model and Optimization Design using Imperialist Competitive Algorithm

—in this paper, a coupled circuit model of Linear Induction Motor based on electromagnetic field ... more —in this paper, a coupled circuit model of Linear
Induction Motor based on electromagnetic field analysis is
presented. Also, the motor parameters are calculated employing
the concept of winding function. The end effect automatically
appears in the equivalent circuit model. Moreover, an optimization
procedure of Linear Induction Motor is employed for improving
performance. Hence, we define three variables, including height of
slot, width of slot and thickness of the secondary sheet to create
initial objective function. Afterward, employing Response Surface
Methodology and Imperialist Competitive Algorithm, the objective
function is optimized for improving the Linear Induction Motor
performance. Finally, the Finite Element Method is employed to
verify the results of the optimization. The results show
improvement in the performance of the Linear Induction Motor.