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2006 12th Biennial IEEE Conference on Electromagnetic Field Computation最新文献

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A fast 3D modeling of arrayed eddy current sensor 阵列式涡流传感器的快速三维建模
2006 12th Biennial IEEE Conference on Electromagnetic Field Computation Pub Date : 2006-06-05 DOI: 10.1109/CEFC-06.2006.1632858
A. Zaoui, M. Feliachi, V. Doirat, M. Djennah
{"title":"A fast 3D modeling of arrayed eddy current sensor","authors":"A. Zaoui, M. Feliachi, V. Doirat, M. Djennah","doi":"10.1109/CEFC-06.2006.1632858","DOIUrl":"https://doi.org/10.1109/CEFC-06.2006.1632858","url":null,"abstract":"We propose the use of the superposition theorem to reconstitute the three-dimensional field produced by a matrix of coils upper a conductive plate, from one axisymmetrical finite element computation. The validation of the model is obtained by comparison with both 3D finite element calculation and experimental results. In axisymmetric modeling, the proximity effect on the coil resistance is studied","PeriodicalId":262549,"journal":{"name":"2006 12th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129750309","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}
引用次数: 2
Modeling Virtual Channels in Cochlear Implant Systems 人工耳蜗系统虚拟通道建模
2006 12th Biennial IEEE Conference on Electromagnetic Field Computation Pub Date : 2006-06-05 DOI: 10.1109/CEFC-06.2006.1633139
C. Choi, Wei-Dian Lai
{"title":"Modeling Virtual Channels in Cochlear Implant Systems","authors":"C. Choi, Wei-Dian Lai","doi":"10.1109/CEFC-06.2006.1633139","DOIUrl":"https://doi.org/10.1109/CEFC-06.2006.1633139","url":null,"abstract":"Simultaneous electrical stimulation of neighboring electrodes generates channel interaction, which is generally undesirable. However, it is possible to create virtual channels or virtual electrodes by stimulating two neighboring electrodes in a suitable manner. In this paper, the ratio of the magnitude of voltage applied to two neighboring electrodes was adjusted according to: 4:0, 3:1, 2:2, 1:3, 0:4. Our model was created by coupling an Ineraid electrode array with a half turn of a human cochlea finite element model. The five different conditions generate five different activating function peaks along the Basilar membrane and between the electrodes, representing five different pitches as perceive by the cochlear implant users. The modeling result is consistent with experimental result","PeriodicalId":262549,"journal":{"name":"2006 12th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130317935","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}
引用次数: 2
Fast BEM for Eddy-Current Problems Using H-matrices and ACA 基于h矩阵和ACA的涡流问题快速边界元法
2006 12th Biennial IEEE Conference on Electromagnetic Field Computation Pub Date : 2006-06-05 DOI: 10.1109/CEFC-06.2006.1633048
J. Smajic, Z. Andjelic, M. Bebendorf
{"title":"Fast BEM for Eddy-Current Problems Using H-matrices and ACA","authors":"J. Smajic, Z. Andjelic, M. Bebendorf","doi":"10.1109/CEFC-06.2006.1633048","DOIUrl":"https://doi.org/10.1109/CEFC-06.2006.1633048","url":null,"abstract":"The paper presents numerical experiments in applying a new technique for matrix compression and preconditioning in BEM-based eddy-current analysis. Following these procedures, the classical problems of BEM approaches for eddy-currents analysis in industrial applications, such as large memory requirements and solver instability (ill-conditioning), are significantly reduced. The algorithm, based on the hierarchical matrix arithmetic and adaptive cross approximation techniques, efficiently compresses the BEM matrix and produces a very important additional feature - a cheap and effective matrix preconditioner. The efficiency of this new technique is tested on various numerical examples and compared with other similar existing techniques (fast multipoles method)","PeriodicalId":262549,"journal":{"name":"2006 12th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130413539","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}
引用次数: 0
Modeling of Magnetic Force Control Device Based on the Inverse Magnetostrictive Effect 基于逆磁致伸缩效应的磁力控制装置建模
2006 12th Biennial IEEE Conference on Electromagnetic Field Computation Pub Date : 2006-06-05 DOI: 10.1109/CEFC-06.2006.1633080
S. Cao, Bowen Wang, Jiaju Zheng, Wenmei Huang, Hui Duan, Haiyan Chen
{"title":"Modeling of Magnetic Force Control Device Based on the Inverse Magnetostrictive Effect","authors":"S. Cao, Bowen Wang, Jiaju Zheng, Wenmei Huang, Hui Duan, Haiyan Chen","doi":"10.1109/CEFC-06.2006.1633080","DOIUrl":"https://doi.org/10.1109/CEFC-06.2006.1633080","url":null,"abstract":"This paper presents a magneto mechanical coupling hysteresis model for a magnetic force control device based on the Jiles-Atherton equation, the law of approach equation and the equivalent magnetic circuit of the device, and determines the parameters of the model by the genetic algorithm. Comparisons between the calculated and measured results show the validity of the model","PeriodicalId":262549,"journal":{"name":"2006 12th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"135 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131164671","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}
引用次数: 0
Animated post-processing of electromagnetic results 动画后处理的电磁结果
2006 12th Biennial IEEE Conference on Electromagnetic Field Computation Pub Date : 2006-06-05 DOI: 10.1109/CEFC-06.2006.1633014
O. Fabrègue, L. Nicolas, R. Scorretti, N. Burais
{"title":"Animated post-processing of electromagnetic results","authors":"O. Fabrègue, L. Nicolas, R. Scorretti, N. Burais","doi":"10.1109/CEFC-06.2006.1633014","DOIUrl":"https://doi.org/10.1109/CEFC-06.2006.1633014","url":null,"abstract":"So as to exploit complex electromagnetic results from BEM and FEM, we have developed a software which helps to better interpret phenomena through animated visualizations. This tool has a good realism, interactivity and rendering performances and is controllable by a process control language to create in an automatic way complex scenarios of exploitation","PeriodicalId":262549,"journal":{"name":"2006 12th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129809044","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}
引用次数: 0
Accurate Integration of the Weakly Singular Integrals from EFIE 弱奇异积分的精确积分
2006 12th Biennial IEEE Conference on Electromagnetic Field Computation Pub Date : 2006-06-05 DOI: 10.1109/CEFC-06.2006.1632825
S. Seo, Jin-Fa Lee
{"title":"Accurate Integration of the Weakly Singular Integrals from EFIE","authors":"S. Seo, Jin-Fa Lee","doi":"10.1109/CEFC-06.2006.1632825","DOIUrl":"https://doi.org/10.1109/CEFC-06.2006.1632825","url":null,"abstract":"The paper presents an accurate integration of weakly singular integrals. The proposed approach is based on the combination of a polar coordinate transformation and an analytic integration for finite element method. The accuracy and stability of the electric field integral equation (EFIE) is then greatly improved","PeriodicalId":262549,"journal":{"name":"2006 12th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130009503","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}
引用次数: 3
An Improved Multiquadric RBF Method for 3D Electromagnetic Problems 三维电磁问题的改进多二次RBF方法
2006 12th Biennial IEEE Conference on Electromagnetic Field Computation Pub Date : 2006-06-05 DOI: 10.1109/CEFC-06.2006.1632901
Yong Zhang, K. Shao, Youguang Guo, D.X. Xie, J. Lavers
{"title":"An Improved Multiquadric RBF Method for 3D Electromagnetic Problems","authors":"Yong Zhang, K. Shao, Youguang Guo, D.X. Xie, J. Lavers","doi":"10.1109/CEFC-06.2006.1632901","DOIUrl":"https://doi.org/10.1109/CEFC-06.2006.1632901","url":null,"abstract":"The multiquadric radial basis function method (MQ RBF or, simply, MQ) developed recently is a truly meshless method with global basis functions. It was introduced for solving many 1D and 2D PDEs, including linear and nonlinear problems. However, few works are found for electromagnetic PDEs, say nothing of 3D problems. This paper presents an improved MQ method for 3D electromagnetic problems. Numerical results show a considerable improvement in accuracy over the traditional MQ method, although both methods are direct collocation method with exponential convergence","PeriodicalId":262549,"journal":{"name":"2006 12th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125110142","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}
引用次数: 2
A Coupled Electrical-Mechanical-Thermal Analysis of EHV Disconnecting Switch for Short Circuit Current Condition 短路电流条件下超高压断开开关的电-机-热耦合分析
2006 12th Biennial IEEE Conference on Electromagnetic Field Computation Pub Date : 2006-06-05 DOI: 10.1109/CEFC-06.2006.1632830
Y. Oh, K. Song, W.Y. Lee, S. Hahn
{"title":"A Coupled Electrical-Mechanical-Thermal Analysis of EHV Disconnecting Switch for Short Circuit Current Condition","authors":"Y. Oh, K. Song, W.Y. Lee, S. Hahn","doi":"10.1109/CEFC-06.2006.1632830","DOIUrl":"https://doi.org/10.1109/CEFC-06.2006.1632830","url":null,"abstract":"This paper presents the performance prediction technique of a disconnecting switch in case of short circuit current conduction. The thermal characteristics caused by the applied force to the contacts and contact resistance are analyzed by solving a coupled electrical-mechanical-thermal problem","PeriodicalId":262549,"journal":{"name":"2006 12th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"222 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122851178","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}
引用次数: 2
Efficient Evaluation of Singular Integrals in Moment Methods Applied to Solve Scattering Problems from Bodies of Revolution 矩法奇异积分的有效求值在公转体散射问题中的应用
2006 12th Biennial IEEE Conference on Electromagnetic Field Computation Pub Date : 2006-06-05 DOI: 10.1109/CEFC-06.2006.1633000
U. C. Resende, F. Moreira, O.M.C. Pereira-Fliho, J. Vasconcelos, D.N. Schettino
{"title":"Efficient Evaluation of Singular Integrals in Moment Methods Applied to Solve Scattering Problems from Bodies of Revolution","authors":"U. C. Resende, F. Moreira, O.M.C. Pereira-Fliho, J. Vasconcelos, D.N. Schettino","doi":"10.1109/CEFC-06.2006.1633000","DOIUrl":"https://doi.org/10.1109/CEFC-06.2006.1633000","url":null,"abstract":"This work proposes an efficient procedure for evaluating singular integrals arising in the moment method analysis of scattering from bodies of revolution. Perfect electric conductor, dielectric and composite bodies with different electrical sizes and different relative permittivities are analyzed by the CFIE, Muller and PMCHWT integral equation, respectively. It is demonstrated that an efficient singularity removal reduces the number of basis functions necessary to represent the equivalent current distributions","PeriodicalId":262549,"journal":{"name":"2006 12th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123123673","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}
引用次数: 1
Study of Magnet Shifting for Reduction of Cogging Torque in Permanent Magnet Motors 减少永磁电机齿槽转矩的磁体移位研究
2006 12th Biennial IEEE Conference on Electromagnetic Field Computation Pub Date : 2006-06-05 DOI: 10.1109/CEFC-06.2006.1633266
Xiuhe Wang, Yubo Yang, Xin Zhang, Ran Zhang, Shiyou Yang
{"title":"Study of Magnet Shifting for Reduction of Cogging Torque in Permanent Magnet Motors","authors":"Xiuhe Wang, Yubo Yang, Xin Zhang, Ran Zhang, Shiyou Yang","doi":"10.1109/CEFC-06.2006.1633266","DOIUrl":"https://doi.org/10.1109/CEFC-06.2006.1633266","url":null,"abstract":"It is found that if the slot number per pole is not an integer, new lower harmonics of cogging torque may be introduced when permanent magnet (PM) shifting is adopted. To reduce cogging torque, both the original and newly introduced lower harmonics of cogging torque should be reduced. In this paper, the effect of PM shifting on Bnz(B nz is the Fourier coefficient of the square of magnetic flux density B2 in the center of airgap without the effect of slot and tooth) is studied. The finite element method (FEM) and evolution strategies are combined to find the best shifting angles to reduce the original and new lower harmonics of cogging torque. It is verified cogging torque can be greatly reduced by the shifting angles calculated in this paper","PeriodicalId":262549,"journal":{"name":"2006 12th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125851462","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}
引用次数: 5
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