Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481848
P. Pham Quang, B. Delinchant, J. Coulomb, B. du Peloux
This paper presents a methodology and a tool for the coupled magnetic-structural with semi-analytical models. For this coupling, the magnetic model is available, we developed the structural-contact model for the cantilever beam and valid it by finite element simulation. This coupling is dedicated to the optimization process of MEMS/NEMS in general and to nano switch in particular.
{"title":"Semi-analytical Magnetic-Structural coupling with contact analysis for MEMS/NEMS","authors":"P. Pham Quang, B. Delinchant, J. Coulomb, B. du Peloux","doi":"10.1109/CEFC.2010.5481848","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481848","url":null,"abstract":"This paper presents a methodology and a tool for the coupled magnetic-structural with semi-analytical models. For this coupling, the magnetic model is available, we developed the structural-contact model for the cantilever beam and valid it by finite element simulation. This coupling is dedicated to the optimization process of MEMS/NEMS in general and to nano switch in particular.","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126583916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481666
D. Davino, A. Giustiniani, C. Visone, W. Zamboni
The paper tackles the analysis of eddy current induced by Villary effect in a magnetostrictive device for energy harvesting purposes. The study aims to focus on the basic loss mechanism which would strongly affect the global performances of these devices, usually employed up to hundreds of hertz.
{"title":"Eddy current induced by Villari-effect in magnetostrictive energy harvesting devices","authors":"D. Davino, A. Giustiniani, C. Visone, W. Zamboni","doi":"10.1109/CEFC.2010.5481666","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481666","url":null,"abstract":"The paper tackles the analysis of eddy current induced by Villary effect in a magnetostrictive device for energy harvesting purposes. The study aims to focus on the basic loss mechanism which would strongly affect the global performances of these devices, usually employed up to hundreds of hertz.","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115536782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481729
B. C. Correa, Elson J. Silva, A. R. Fonseca, D. Oliveira, R. Mesquita
This paper describes a meshless approach to obtain accurate solutions for propagating microwave problems. The Meshless Local Petrov-Galerkin (MLPG) method, with the Heaviside step test functions and Radial basis point interpolation method (RPIM) shape functions, is used. Results are obtained for a two-dimensional model and are compared with a consolidated Finite Element Method (FEM).
{"title":"Meshless Local Petrov-Galerkin in solving microwave guide problems","authors":"B. C. Correa, Elson J. Silva, A. R. Fonseca, D. Oliveira, R. Mesquita","doi":"10.1109/CEFC.2010.5481729","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481729","url":null,"abstract":"This paper describes a meshless approach to obtain accurate solutions for propagating microwave problems. The Meshless Local Petrov-Galerkin (MLPG) method, with the Heaviside step test functions and Radial basis point interpolation method (RPIM) shape functions, is used. Results are obtained for a two-dimensional model and are compared with a consolidated Finite Element Method (FEM).","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115941890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481281
Jeong-Jong Lee, S. Chai, Jung-Pyo Hong
This paper presents particle interaction of hysteresis model with multi-Preisach model. A conventional analysis method is calculated using Everett density with the Gaussian distribution or the Cauchy distribution. In this paper, we propose fine method called multi-Preisach model method to calculate hysteresis model using several experiment data line. Multi-Preisach hysteresis model is provide the convenient and accurate novel method.
{"title":"Hysteresis modeling using multi-Preisach model in electromagnetic computation","authors":"Jeong-Jong Lee, S. Chai, Jung-Pyo Hong","doi":"10.1109/CEFC.2010.5481281","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481281","url":null,"abstract":"This paper presents particle interaction of hysteresis model with multi-Preisach model. A conventional analysis method is calculated using Everett density with the Gaussian distribution or the Cauchy distribution. In this paper, we propose fine method called multi-Preisach model method to calculate hysteresis model using several experiment data line. Multi-Preisach hysteresis model is provide the convenient and accurate novel method.","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124389345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481779
Junghwan Chang, Jiwon Kim, Jiyoung Lee, D. Kang, Kwangwoon Kim
This paper presents analytical design procedures of transverse flux linear motor (TFLM). With ratios of important design variables and simplified equivalent magnetic circuit, flux linkage is determined at load and no-load condition. The number of turns of windings can be calculated by considering the amplitude of applied voltage, and rated current, coil diameter, and winding area can be obtained with the help of empirical formula for determining required magnetomotive force (MMF). The usefulness of proposed design method for TFLM is verified by three-dimensional finite element analysis and experimental results of prototyped machine.
{"title":"Design procedures of transverse flux linear motor","authors":"Junghwan Chang, Jiwon Kim, Jiyoung Lee, D. Kang, Kwangwoon Kim","doi":"10.1109/CEFC.2010.5481779","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481779","url":null,"abstract":"This paper presents analytical design procedures of transverse flux linear motor (TFLM). With ratios of important design variables and simplified equivalent magnetic circuit, flux linkage is determined at load and no-load condition. The number of turns of windings can be calculated by considering the amplitude of applied voltage, and rated current, coil diameter, and winding area can be obtained with the help of empirical formula for determining required magnetomotive force (MMF). The usefulness of proposed design method for TFLM is verified by three-dimensional finite element analysis and experimental results of prototyped machine.","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114583330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481840
D. Miyagi, N. Ono, N. Takahashi, K. Akatsu
The magnetic property of electrical steel sheet has an anisotropy even in the case of non-oriented material. In order to analyze the operating condition of a synchronous reluctance motor preciously, the magnetic field analysis considering the magnetic anisotropy of electrical steel sheet using the fixed-point method was carried out.
{"title":"Effect of magnetic anisotropy on operating condition of synchronous reluctance motor","authors":"D. Miyagi, N. Ono, N. Takahashi, K. Akatsu","doi":"10.1109/CEFC.2010.5481840","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481840","url":null,"abstract":"The magnetic property of electrical steel sheet has an anisotropy even in the case of non-oriented material. In order to analyze the operating condition of a synchronous reluctance motor preciously, the magnetic field analysis considering the magnetic anisotropy of electrical steel sheet using the fixed-point method was carried out.","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114970782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481044
Jin–Ho Kim, Joung-Hwan Chang, Se-Myung Park, Ki-Il Hwang, Jae-Yong Lee
One of the most promising ways to improve fuel economy, reduce CO2 emissions and increase torque output is to achieve variable valve timing (VVT). Some of the devices developed in the past years include mechanical, hydraulic, motor-driven and electromagnetic actuators. Existing most advanced system is an electromagnetic actuator using solenoids to activate engine valves. It, however, needs the current continuously in all operation period and has difficult starting problem resulting in low power efficiency. In this paper, we propose a novel electromagnetic valve drive system, and discuss the design, finite element analysis and construction of the experimental apparatus.
{"title":"A novel electromagnetic latching device for variable valve timing in automotive engine","authors":"Jin–Ho Kim, Joung-Hwan Chang, Se-Myung Park, Ki-Il Hwang, Jae-Yong Lee","doi":"10.1109/CEFC.2010.5481044","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481044","url":null,"abstract":"One of the most promising ways to improve fuel economy, reduce CO2 emissions and increase torque output is to achieve variable valve timing (VVT). Some of the devices developed in the past years include mechanical, hydraulic, motor-driven and electromagnetic actuators. Existing most advanced system is an electromagnetic actuator using solenoids to activate engine valves. It, however, needs the current continuously in all operation period and has difficult starting problem resulting in low power efficiency. In this paper, we propose a novel electromagnetic valve drive system, and discuss the design, finite element analysis and construction of the experimental apparatus.","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116246891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481771
Zheng Xiaohu, Liu Yuanwei, G. Feng
Ni-Fe-SiC alloy is a promising material in the fabrication of micro actuator. Electrolytic codeposition technique was adopted in the deposition of Ni-Fe-SiC composite coating on stainless steel substrate, using nickel alloyed with iron as the binder phase and SiC as dispersed particles. The morphology analysis indicated that the deposit with SiC nanoparticles is level and compact and the crystal-planes of the deposit are (111), (220) and (200). The resistivity of deposit is about 30×10−8 Ω·m. When the loading of Fe (wt.%) range from 10% to 50% in the deposit, the electrodeposit has a strong paramagnetism effect with the smallest coercivity of 2.75×10−2 A/m. The remanence shows a monotonic decrease with the increasing of iron content in deposit. It is proved that the electroformed Ni-Fe-SiC alloy has a good electromagnetic property and higher corrosion resistance (with the corrosion rate: 0.17mg/dm2 per hour in 2M HCl) than that of electroforming Ni-Fe alloy (with the corrosion rate: 0.23mg/dm2 per hour).
{"title":"Study on electroforming Ni-Fe-SiC alloy for micro fabrication","authors":"Zheng Xiaohu, Liu Yuanwei, G. Feng","doi":"10.1109/CEFC.2010.5481771","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481771","url":null,"abstract":"Ni-Fe-SiC alloy is a promising material in the fabrication of micro actuator. Electrolytic codeposition technique was adopted in the deposition of Ni-Fe-SiC composite coating on stainless steel substrate, using nickel alloyed with iron as the binder phase and SiC as dispersed particles. The morphology analysis indicated that the deposit with SiC nanoparticles is level and compact and the crystal-planes of the deposit are (111), (220) and (200). The resistivity of deposit is about 30×10−8 Ω·m. When the loading of Fe (wt.%) range from 10% to 50% in the deposit, the electrodeposit has a strong paramagnetism effect with the smallest coercivity of 2.75×10−2 A/m. The remanence shows a monotonic decrease with the increasing of iron content in deposit. It is proved that the electroformed Ni-Fe-SiC alloy has a good electromagnetic property and higher corrosion resistance (with the corrosion rate: 0.17mg/dm2 per hour in 2M HCl) than that of electroforming Ni-Fe alloy (with the corrosion rate: 0.23mg/dm2 per hour).","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"75 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116348287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481494
F. Kunter, S. Selim Seker
A thermal model of the human eye is constructed using the new developed computational model. Weighted extended basis splines in the finite element method is employed to calculate the steady-state temperature distribution in a normal human eye. In this paper, the results are verified with experimental results obtained by previous studies on human as well as animal eyes with finite element computational results. Among the results existed in the literature, it appears that the new method gives better agreement than the previous computational methods.
{"title":"Heat transfer model of the human eye using web-spline technique","authors":"F. Kunter, S. Selim Seker","doi":"10.1109/CEFC.2010.5481494","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481494","url":null,"abstract":"A thermal model of the human eye is constructed using the new developed computational model. Weighted extended basis splines in the finite element method is employed to calculate the steady-state temperature distribution in a normal human eye. In this paper, the results are verified with experimental results obtained by previous studies on human as well as animal eyes with finite element computational results. Among the results existed in the literature, it appears that the new method gives better agreement than the previous computational methods.","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116349626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-05-09DOI: 10.1109/CEFC.2010.5481757
D. Jung, H. Lee, Ju Lee
Recently, electric motors are required to show high efficiency/power/torque within low cost/size and noise in every application field, such as home appliance and industrial field. This paper proposed a design method that can result in motors that show low-cost and high output characteristics. An optimally designed flat type IPMSM and a V type IPMSM was design. For the design, a novel method considering d-axis armature reaction was used and a novel design equation is proposed. The validation of design method was done by comparing the manufactured motors.
{"title":"A study on the improvement of high power in interior permanent magnet","authors":"D. Jung, H. Lee, Ju Lee","doi":"10.1109/CEFC.2010.5481757","DOIUrl":"https://doi.org/10.1109/CEFC.2010.5481757","url":null,"abstract":"Recently, electric motors are required to show high efficiency/power/torque within low cost/size and noise in every application field, such as home appliance and industrial field. This paper proposed a design method that can result in motors that show low-cost and high output characteristics. An optimally designed flat type IPMSM and a V type IPMSM was design. For the design, a novel method considering d-axis armature reaction was used and a novel design equation is proposed. The validation of design method was done by comparing the manufactured motors.","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"3 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123668976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}