A Finite-Difference Time-Domain Normal Mode Method for Broadband Transmission Loss Predictions

2017 ◽  
Vol 103 (5) ◽  
pp. 758-766
Author(s):  
Yongjune Kim ◽  
Il-Suek Koh ◽  
Yongshik Lee
Keyword(s):  
Finite Difference ◽  
Normal Mode ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Transmission Loss ◽  
Mode Method ◽  
Normal Mode Method ◽  
Difference Time

Finite-Difference Time-Domain Analysis of Sound Insulation Performance of Wall Systems

2009 ◽  
Vol 16 (3) ◽  
pp. 267-281 ◽  
Author(s):  
Takumi Asakura ◽  
Shinichi Sakamoto
Keyword(s):  
Numerical Analysis ◽  
Finite Difference ◽  
Energy Loss ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Transmission Loss ◽  
Fdtd Method ◽  
Sound Insulation ◽  
Insulation Performance ◽  
Difference Time

A prediction method for the sound insulation of walls by vibro-acoustical numerical analysis using the finite-difference time-domain (FDTD) method is described. In order to accurately predict the sound insulation performance of walls, numerical modeling of the vibration energy loss of walls in the vibration analysis is necessary. In this study, the energy loss at the boundary part of the plates and the internal damping of the plates are modeled and the sound transmission loss of glass plates and plasterboard walls is calculated. A reasonable agreement is found between the calculation and measurement results and the applicability of the numerical analysis is confirmed.

Finite-difference time-domain approach to nonlinear guided waves

1993 ◽  
Vol 29 (1) ◽  
pp. 83-84 ◽  
Author(s):  
H.A. Jamid ◽  
S.J. Al-Bader
Keyword(s):  
Finite Difference ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Guided Waves ◽  
Difference Time
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