当前位置: 首页>>学术交流>>学术报告>>正文
 
 

Fast Algorithms in Modeling of Electromagnetic and Elastic Wave Propagation and Scattering——Jiming Song教授——(2017.11.17)

2017年11月15日 15:45  点击:[]

时间:2017111710:00-11:30 (星期五)

地点:综合1号实验楼602

报告题目Fast Algorithms in Modeling of Electromagnetic and Elastic Wave Propagation and Scattering

报告人:Jiming Song 教授美国艾奥瓦州立大学

报告摘要: 

An introduction about fast algorithms in computational electromagnetics will be given first. The electromagnetic field scattering by arbitrarily shaped objects can be obtained by finding the solution of an integral equation. The integral equation is discretized by the standard method of moments (MoM). If the resultant matrix equation is solved by Gaussian elimination, it requires O(N^3) floating-point operations to solve N linear equations, or O(N^2) operations per iteration for iterative solvers. With the fast multipole method (FMM) and the multilevel fast multipole algorithm (MLFMA), the complexity of matrix-vector multiply in iterative solvers is reduced to O(N^1.5) or O(NlogN). The FMM and MLFMA also require less memory, and hence, can solve a larger problem on a small computer. Finally, our most recent research results on developing efficient algorithms on acoustic and elastic wave propagation and scattering will be presented.

 

报告人简介:

Jiming Song received Ph.D. degree in Electrical Engineering from Michigan State University in 1993. From 1993 to 2000, he worked as a Postdoctoral Research Associate, a Research Scientist and Visiting Assistant Professor at the University of Illinois at Urbana-Champaign. From 1996 to 2000, he worked part-time as a Research Scientist at SAIC-DEMACO. Dr. Song was the principal author of the Fast Illinois Solver Code (FISC).  He was a Principal Staff Engineer/Scientist at Semiconductor Products Sector of Motorola in Tempe, Arizona before he joined Department of Electrical and Computer Engineering at Iowa State University as an Assistant Professor in 2002.

Dr. Song currently is a Professor at Iowa State University’s Department of Electrical and Computer Engineering. His research has dealt with modeling and simulations of interconnects on lossy silicon and RF components, electromagnetic wave scattering using fast algorithms, the wave propagation in metamaterials, acoustic and elastic wave propagation and non-destructive evaluation, and transient electromagnetic field. He received the NSF Career Award in 2006 and is an IEEE Fellow.

 

上一条:纳米颗粒弹性性能对细胞内吞的影响——易新 特聘研究员——(2017.11.28) 下一条:天然气主体能源背景下的LNG浮式储运装备——盛苏建高工——(2017.11.8)

关闭

地址:中国·辽宁省大连市甘井子区凌工路2号 大连理工大学  邮编:116023  电话:0411-84708393  电子信箱:lsai@dlut.edu.cn
版权所有:工业装备结构分析国家重点实验室  Copyright © 2013 All rights reserved.  技术支持:大连理工大学N维网