scholarly journals An efficient and high-order frequency-domain approach for transient acoustic-structure interactions in three dimensions

2016 ◽  
Vol 108 (7) ◽  
pp. 790-816
Author(s):  
Junshan Lin
Keyword(s):  
Frequency Domain ◽  
High Order ◽  
Three Dimensions ◽  
Acoustic Structure ◽  
Frequency Domain Approach

A fast three‐dimensional modeling technique and fundamentals of three‐dimensional frequency‐domain migration

Geophysics ◽  
1982 ◽  
Vol 47 (12) ◽  
pp. 1627-1644 ◽  
Author(s):  
A. J. Herman ◽  
R. M. Anania ◽  
J. H. Chun ◽  
C. A. Jacewitz ◽  
R. E. F. Pepper
Keyword(s):  
Frequency Domain ◽  
Three Dimensional ◽  
Three Dimensions ◽  
Principle Of Superposition ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Complex Events ◽  
Axis Of Symmetry ◽  
Frequency Domain Approach ◽  
D Model

The frequency‐domain approach to migration extends to three dimensions. Application of the ray‐tracing approach to simple seismic events, together with the principle of superposition for complex events, leads to the correct equation for frequency‐domain migration in a constant velocity medium and a further understanding of the basic migration procedure in three dimensions. In the frequency domain, three‐dimensional (3-D) migration may be reduced to a series of two‐dimensional (2-D) migrations. A 3-D seismic model can be generated economically for structures with combinations of radial and 2-D symmetry. Starting from a 2-D synthetic, a 3-D model can be constructed by rotation about the axis of symmetry. Any line across the model may then be synthesized from the basic 2-D data. Certain more complex 3-D models can also be developed using the superposition of simpler models. Synthetic examples are used to illustrate the fact that 2-D migration of 3-D seismic data will not generally result in a correct section.

scholarly journals A frequency‐domain approach for damage detection in welded structures

2021 ◽  
Author(s):  
Camilla Ronchei ◽  
Sabrina Vantadori ◽  
Andrea Carpinteri ◽  
Ignacio Iturrioz ◽  
Roberto Issopo Rodrigues ◽  
...  
Keyword(s):  
Damage Detection ◽  
Frequency Domain ◽  
Welded Structures ◽  
Frequency Domain Approach

A frequency domain approach to residual generation for the industrial actuator benchmark

1995 ◽  
Vol 3 (12) ◽  
pp. 1747-1750 ◽  
Author(s):  
E. Alcorta García ◽  
B. Köppen-Seliger ◽  
P.M. Frank
Keyword(s):  
Frequency Domain ◽  
Frequency Domain Approach ◽  
Residual Generation
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