𝔖 Bobbio Scriptorium
✦   LIBER   ✦

COMMENTS ON “THE POINT-MATCHING METHOD ON DISSIPATIVE SILENCERS OF ARBITRARY CROSS-SECTION”

✍ Scribed by P.A.A. Laura; K. Rodrı́guez


Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
140 KB
Volume
201
Category
Article
ISSN
0022-460X

No coin nor oath required. For personal study only.

✦ Synopsis


The author is to be congratulated for his straightforward solution of this important technical problem [1]. It is also the prupose of this discussion to bring the attention of the interested reader to additional references regarding use of the point-matching method in vibrations and acoustics problems.

H. D. Conway employed the methodology when dealing with field and eigenvalue problems within the realm of the classical theory of plates [2,3]. It is important to point out that the governing partial differential equation of a vibrating plate is


📜 SIMILAR VOLUMES


THE TRANSFER MATRIX FOR A DISSIPATIVE SI
✍ R. GLAV 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 239 KB

In this work, the acoustic transfer matrix for a cylindrical dissipative silencer of arbitrary cross-section and bulk-reacting lining is derived for the case of negligible mean #ow. The derivation is performed in a two-step procedure. First, the corresponding in"nite-lined duct is analyzed by separa

On the Existence of Trapped Modes in Cha
✍ M. D. Groves 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 356 KB

## Communicated by F. Ursell This article establishes the existence of trapped-mode solutions of a linearized water-wave problem. The fluid occupies a symmetric horizontal channel that is uniform everywhere apart from a confined region which either contains a thin vertical plate spanning the depth

On the dispersion equation for a homogen
✍ A. D. Ioannidis; G. Kristensson; D. Sjöberg 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 100 KB

## Abstract In this article, we consider the propagation problem inside a waveguide filled with a homogeneous bi‐isotropic material. The cross section of the waveguide is assumed arbitrary. By using the classical theory for the 2D Helmholtz equation in the cross section and the null‐field approach,

The limitations of the perfectly matched
✍ An Ping Zhao 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 158 KB

## Abstract The aim of this communication is to correct potential misunderstandings about the PMLs (which are called the MIPMLs) based on __D__–__H__ (__E__–__B__ or __D__–__B__) fields. In fact, the motivation for developing the MIPMLs is to establish accurate and efficient PML absorbers for gener