Finite-Difference Time-Domain Numerical Analysis of Elastic Wave Fields Using both Elastic and Velocity Potential Variables

2006 ◽  
Vol 45 (5B) ◽  
pp. 4453-4461 ◽  
Author(s):  
Masahiro Sato
Keyword(s):  
Numerical Analysis ◽  
Finite Difference ◽  
Elastic Wave ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Velocity Potential ◽  
Wave Fields ◽  
Difference Time

scholarly journals Numerical Analysis of H-PDLC Using the Split-Field Finite-Difference Time-Domain Method

Polymers ◽  
2018 ◽  
Vol 10 (5) ◽  
pp. 465 ◽  
Author(s):  
Sergio Bleda ◽  
Jorge Francés ◽  
Sergi Gallego ◽  
Andrés Márquez ◽  
Cristian Neipp ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Finite Difference ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Time Domain Method ◽  
Domain Method ◽  
Split Field ◽  
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.

Numerical Analysis of Sound Pressure Fields Focused by Phase Continuous Fresnel Lens Using Finite Difference Time Domain Method

2007 ◽  
Vol 46 (7B) ◽  
pp. 4990-4997 ◽  
Author(s):  
Kazuyoshi Mori ◽  
Ayano Miyazaki ◽  
Hanako Ogasawara ◽  
Toshiaki Nakamura ◽  
Yasuhito Takeuchi
Keyword(s):  
Numerical Analysis ◽  
Finite Difference ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Sound Pressure ◽  
Fresnel Lens ◽  
Time Domain Method ◽  
Pressure Fields ◽  
Domain Method ◽  
Difference Time
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