Title :
Finite element modeling of sonar domes with noise for transducer arrays in sea environment
Author :
Mestouri, H. ; Loussert, A.
Author_Institution :
Dept. d´´Instrum., Lab. ISEN Brest, Brest, France
Abstract :
There are several parameters which affect the dome transmission coefficient, such as type of material and dome thickness. In this paper, a 2D finite element model is constructed to analyse the effect of this parameters of an active sonar enclosed within a protective dome and mounted beneath a surface ship. Several models are built using finite element code ATILA. An attempt is made in this paper to highlight certain effects of noise in sonar performance. Different results are available such, underwater directivity patterns, transmitting voltage response (TVR) and pressure field in water. The obtained results are discussed and the effects of each parameter are shown.
Keywords :
finite element analysis; sonar; transducers; 2D finite element model; ATILA; active sonar; dome thickness; dome transmission coefficient; finite element modeling; pressure field; protective dome; sea environment; sonar domes; surface ship; transducer arrays; transmitting voltage response; underwater directivity patterns; Finite element methods; Geometry; Marine vehicles; Piezoelectric materials; Piezoelectric transducers; Protection; Sea surface; Solid modeling; Sonar; Working environment noise;
Conference_Titel :
OCEANS 2009 - EUROPE
Conference_Location :
Bremen
Print_ISBN :
978-1-4244-2522-8
Electronic_ISBN :
978-1-4244-2523-5
DOI :
10.1109/OCEANSE.2009.5278301
