Modeling Curved Carbon Fiber Composite (CFC) Structures in the Transmission-Line Modeling (TLM) Method

Author

Xuesong Meng ; Sewell, Phillip ; Phang, Sendy ; Vukovic, Ana ; Benson, Trevor M.

Author_Institution

George Green Inst. for Electromagn. Res., Univ. of Nottingham, Nottingham, UK

Volume

57

Issue

3

fYear

2015

fDate

Jun-15

Firstpage

384

Lastpage

390

Abstract

A new embedded model for curved thin panels is developed in the transmission line modeling (TLM) method. In this model, curved panels are first linearized and then embedded between adjacent 2-D TLM nodes allowing for arbitrary positioning between adjacent node centers. The embedded model eliminates the necessity for fine discretization, thus reducing the run time and memory requirements for the calculation. The accuracy and convergence of the model are verified by comparing the resonant frequencies of an elliptical cylinder formed using carbon fiber composite (CFC) materials with those of the equivalent metal cylinder. Furthermore, the model is used to analyze the shielding performance of CFC airfoil NACA2415.

Keywords

aerodynamics; aerospace components; aerospace materials; carbon fibres; composite materials; transmission line theory; CFC airfoil NACA2415; CFC material structure; TLM method; adjacent 2D TLM node; adjacent node center; curved carbon fiber composite material structure; curved thin panel; elliptical cylinder formation; embedded model; equivalent metal cylinder; fine discretization; memory requirement; shielding performance; transmission-line modeling method; Atmospheric modeling; Automotive components; Materials; Metals; Resonant frequency; Time-domain analysis; Time-varying systems; Carbon fiber composite (CFC) materials; curved structures; digital filter theory; shielding effectiveness (SE); transmission line modeling (TLM) method;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/TEMC.2015.2400055

Filename

7053927