Theoretical Study on the Airborne Noise Transmission Loss of Submerged Infinite Plate

Structure-borne noise (SBN) and airborne noise (ABN) generated by onboard equipment are the primary sources of underwater radiated noise (URN) from naval vessels. In vessels where effective SBN reduction measures have been implemented, it becomes essential to assess the contribution of ABN from onboard equipment to the overall URN. This paper presents a theoretical review and analysis of the acoustic transmission loss of the hull, a critical factor in evaluating URN caused by ABN from onboard equipment. The analysis is conducted using models of flexible and rigid infinite plates to provide insights into the acoustic behavior of naval vessel hulls.