English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

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 fluidstructure 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. Keywords-sonar cavity; mechanical noise; rectangular cavity; fluid solid coupling; acoustic field

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