Analysis of the Mechanical Self-noise Transmission of Underwater Acoustic Field on the Sonar

DOI

10.2991/lemcs-15.2015.51How to use a DOI?

Keywords

Sonar cavity; Mechanical noise; Rectangular cavity; Fluid solid coupling; Acoustic field

Abstract

Combining with the structure characteristics of sonar cavity and the theory of the self-noise prediction, the wall of sonar platform affected by the mechanical vibration is simulated by elastic thin plate and the rectangular cavity is the simulation of sonar cavity, the theoretical analysis model of the sonar cavity is established considering the fluid-structure coupling effect. The acoustic field in sonar cavity is analyzed theoretically using the modal methods, and the distribution of sound pressure in acoustic field is obtained when the elastic boundary is motivated externally. Underwater acoustic field of the rectangular cavity is analyzed through the numerical examples by the MATLAB, the change rule of the acoustic field in sonar cavity is studied. The finite element analysis is carried out on the rectangular cavity model by acoustic software of the LMS Virtual. lab in order to check the correctness of the theoretical model. This study provides certain theoretical basis for the analysis and control of mechanical self-noise sonar cavity at the low frequency.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Daokun Zhang
AU  - Rui Huo
AU  - Zhidong Wang
PY  - 2015/07
DA  - 2015/07
TI  - Analysis of the Mechanical Self-noise Transmission of Underwater Acoustic Field on the Sonar
BT  - Proceedings of the International Conference on Logistics, Engineering, Management and Computer Science
PB  - Atlantis Press
SP  - 268
EP  - 272
SN  - 1951-6851
UR  - https://doi.org/10.2991/lemcs-15.2015.51
DO  - 10.2991/lemcs-15.2015.51
ID  - Zhang2015/07
ER  -