Next Article in Journal
An Implementation of Parallel Buck Converters for Common Load Sharing in DC Microgrid
Previous Article in Journal
A Metamodel for Evaluating Enterprise Readiness in the Context of Industry 4.0
Article Menu

Export Article

Open AccessArticle
Information 2019, 10(3), 90; https://doi.org/10.3390/info10030090

A Fast Optimization Algorithm of FEM/BEM Simulation for Periodic Surface Acoustic Wave Structures

1
Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
2
University of Chinese Academy of Sciences, Beijing 100190, China
3
School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
4
Shenzhen Institute of Huazhong University of Science and Technology, Shenzhen 518000, China
*
Author to whom correspondence should be addressed.
Received: 14 January 2019 / Revised: 14 February 2019 / Accepted: 20 February 2019 / Published: 28 February 2019
Full-Text   |   PDF [1037 KB, uploaded 28 February 2019]   |  

Abstract

The accurate analysis of periodic surface acoustic wave (SAW) structures by combined finite element method and boundary element method (FEM/BEM) is important for SAW design, especially in the extraction of couple-of-mode (COM) parameters. However, the time cost is very large. With the aim to accelerate the calculation of SAW FEM/BEM analysis, some optimization algorithms for the FEM and BEM calculation have been reported, while the optimization for the solution to the final FEM/BEM equations which is also with a large amount of calculation is hardly reported. In this paper, it was observed that the coefficient matrix of the final FEM/BEM equations for the periodic SAW structures was similar to a Toeplitz matrix. A fast algorithm based on the Trench recursive algorithm for the Toeplitz matrix inversion was proposed to speed up the solution of the final FEM/BEM equations. The result showed that both the time and memory cost of FEM/BEM was reduced furtherly. View Full-Text
Keywords: surface acoustic wave; finite element method/boundary element method (FEM/BEM); piezoelectric phononic crystals surface acoustic wave; finite element method/boundary element method (FEM/BEM); piezoelectric phononic crystals
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Li, H.; Lu, Z.; Ke, Y.; Tian, Y.; Luo, W. A Fast Optimization Algorithm of FEM/BEM Simulation for Periodic Surface Acoustic Wave Structures. Information 2019, 10, 90.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Information EISSN 2078-2489 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top