Development of a hybrid wave based–transfer matrix model for sound transmission analysis

2013 ◽  
Vol 133 (4) ◽  
pp. 2157-2168 ◽  
Author(s):  
A. Dijckmans ◽  
G. Vermeir
Keyword(s):  
Transfer Matrix ◽  
Matrix Model ◽  
Sound Transmission ◽  
Hybrid Wave

scholarly journals An improved transfer-matrix 
model for optical superlenses

2009 ◽  
Vol 17 (16) ◽  
pp. 14260 ◽  
Author(s):  
Ciaran P. Moore ◽  
Richard J. Blaikie ◽  
Matthew D. Arnold
Keyword(s):  
Transfer Matrix ◽  
Matrix Model

A Ray Transfer Matrix Model for an Elastomeric Lens

2011 ◽  
Vol 110-116 ◽  
pp. 4145-4148
Author(s):  
Johanna Mae M. Indias ◽  
Clark Kendrick C. Go
Keyword(s):  
Transfer Matrix ◽  
Matrix Model ◽  
Focal Length ◽  
Effective Focal Length ◽  
Length Changes ◽  
Variable Focus ◽  
Tunable Lens

A Ray Transfer Matrix (RTM) of a variable-focus elastomeric fluidic lens is explored and modeled in this paper. A HeNe (543.45nm wavelength) laser is incident on the tunable lens and the effective focal length changes are explored based on this model. Results show that there are two possible focal lengths and that focal lengths are independent of the elastomer thickness.

Plano-concave microresonator sensors for photoacoustic imaging: optical sensitivity maximization using transfer matrix model

2021 ◽  
Author(s):  
David Martin-Sanchez ◽  
James A. Guggenheim ◽  
Edward Z. Zhang ◽  
Dylan M. Marques ◽  
Peter R. T. Munro ◽  
...  
Keyword(s):  
Transfer Matrix ◽  
Matrix Model ◽  
Photoacoustic Imaging ◽  
Optical Sensitivity

scholarly journals Modeling of Sonotrode System of Ultrasonic Consolidation With Transfer Matrix Method

2021 ◽  
Vol 8 ◽  
Author(s):  
Yin Wang ◽  
Ziyan Chen ◽  
Qing Yu ◽  
Fang Cheng
Keyword(s):  
Finite Element ◽  
Transfer Matrix ◽  
Matrix Model ◽  
Transfer Matrix Method ◽  
Matrix Method ◽  
Experimental Result ◽  
Ultrasonic Consolidation ◽  
Modeling Methods ◽  
Resonance Frequencies ◽  
The Difference

To establish an efficient model for sonotrode system, a key part that continuously applies ultrasonic oscillation on metal foils to form solid state bond in ultrasonic consolidation equipment, this research presents modeling methods for sonotrode system. After an introduction to the construction of sonotrode system along with its operating principle, the transfer matrix method was adopted to build the model for the system consisting two ultrasonic transducers and one sonotrode. Simulation results of transfer matrix model were compared to that of finite element method. A prototype was fabricated and tested. A comparison of the resonance frequencies calculated by two modeling methods to the experimental result showed that the difference between transfer matrix model and prototype is 6.96% while the difference between finite element model and prototype is 9.26%. The proposed transfer matrix method is an efficient way to simulate dynamic performances for sonotrode system, which provide a better foundation for further optimization.

An improved approach for normal-incidence sound transmission loss measurement using a four-microphone impedance tube

2020 ◽  
pp. 107754632092690
Author(s):  
Zechao Li ◽  
Sizhong Chen ◽  
Zhicheng Wu ◽  
Lin Yang
Keyword(s):  
Transfer Matrix ◽  
Sound Absorption ◽  
Transmission Loss ◽  
Sound Transmission ◽  
Normal Incidence ◽  
Sound Insulation ◽  
Sound Transmission Loss ◽  
The Common ◽  
Wavefield Decomposition ◽  
Insulation Performance

The main aim of this study is to introduce an improved method for determining the sound properties of acoustic materials which is more precise than the common wavefield decomposition method and simpler than the common transfer matrix method. In the first part of the article, a group of formulae for calculating sound transmission loss is represented by combining the wavefield decomposition and transfer matrix methods. Subsequently, a formula for calculating sound absorption coefficients is derived from these formulae by definition. Furthermore, the present formulae are validated by comparing the experimental results achieved with the present formulae and those results obtained by other methods recorded in published articles. Eventually, it is demonstrated that the method can accurately measure the sound insulation performance of materials and the sound absorption properties of limp and lightweight materials.

Sign in / Sign up

Export Citation Format

Share Document